install.php

   1 <?php /// $Id$
   2       /// install.php - helps admin user to create a config.php file
   3
   4 /// If config.php exists already then we are not needed.
   5
   6 if (file_exists('./config.php')) {
   7     header('Location: index.php');
   8     die;
   9 } else {
  10     $configfile = './config.php';
  11 }
  12
  13 ///==========================================================================//
  14 /// We are doing this in stages
  15 define ('WELCOME',            0); /// 0. Welcome and language settings
  16 define ('COMPATIBILITY',      1); /// 1. Compatibility
  17 define ('DIRECTORY',          2); /// 2. Directory settings
  18 define ('DATABASE',           3); /// 2. Database settings
  19 define ('ADMIN',              4); /// 4. Administration directory name
  20 define ('ENVIRONMENT',        5); /// 5. Administration directory name
  21 define ('DOWNLOADLANG',       6); /// 6. Load complete lang from download.moodle.org
  22 define ('SAVE',               7); /// 7. Save or display the settings
  23 define ('REDIRECT',           8); /// 8. Redirect to index.php
  24 ///==========================================================================//
  25
  26
  27 /// This has to be defined to avoid a notice in current_language()
  28 define('SITEID', 0);
  29
  30 /// Begin the session as we are holding all information in a session
  31 /// variable until the end.
  32
  33 session_name('MoodleSession');
  34 @session_start();
  35
  36 /// make sure PHP errors are displayed to help diagnose problems
  37 @error_reporting(1023); //E_ALL not used because we do not want strict notices in PHP5 yet
  38 @ini_set('display_errors', '1');
  39
  40 if (! isset($_SESSION['INSTALL'])) {
  41     $_SESSION['INSTALL'] = array();
  42 }
  43
  44 $INSTALL = &$_SESSION['INSTALL'];   // Makes it easier to reference
  45
  46 /// detect if install was attempted from diferent directory, if yes reset session to prevent errors,
  47 /// dirroot location now fixed in installer
  48 if (!empty($INSTALL['dirroot']) and $INSTALL['dirroot'] != dirname(__FILE__)) {
  49     $_SESSION['INSTALL'] = array();
  50 }
  51
  52 /// If it's our first time through this script then we need to set some default values
  53
  54 if ( empty($INSTALL['language']) and empty($_POST['language']) ) {
  55
  56     /// set defaults
  57     $INSTALL['language']        = 'en_utf8';
  58
  59     $INSTALL['dbhost']          = 'localhost';
  60     $INSTALL['dbuser']          = '';
  61     $INSTALL['dbpass']          = '';
  62     $INSTALL['dbtype']          = 'mysql';
  63     $INSTALL['dbname']          = 'moodle';
  64     $INSTALL['prefix']          = 'mdl_';
  65
  66     $INSTALL['downloadlangpack']       = false;
  67     $INSTALL['showdownloadlangpack']   = true;
  68     $INSTALL['downloadlangpackerror']  = '';
  69
  70 /// To be used by the Installer
  71     $INSTALL['wwwroot']         = '';
  72     $INSTALL['dirroot']         = dirname(__FILE__);
  73     $INSTALL['dataroot']        = dirname(dirname(__FILE__)) . DIRECTORY_SEPARATOR . 'moodledata';
  74
  75 /// To be configured in the Installer
  76     $INSTALL['wwwrootform']         = '';
  77     $INSTALL['dirrootform']         = dirname(__FILE__);
  78
  79     $INSTALL['admindirname']    = 'admin';
  80
  81     $INSTALL['stage'] = WELCOME;
  82 }
  83
  84 //==========================================================================//
  85
  86 /// Set the page to Unicode always
  87
  88 header('Content-Type: text/html; charset=UTF-8');
  89
  90 /// Was data submitted?
  91
  92 if (isset($_POST['stage'])) {
  93
  94     /// Get the stage for which the form was set and the next stage we are going to
  95
  96     /// Store any posted data
  97     foreach ($_POST as $setting=>$value) {
  98         $INSTALL[$setting] = $value;
  99     }
 100
 101     if ( $goforward = (! empty( $_POST['next'] )) ) {
 102         $nextstage = $_POST['stage'] + 1;
 103     } else if (! empty( $_POST['prev'])) {
 104         $nextstage = $_POST['stage'] - 1;
 105         $INSTALL['stage'] = $_POST['stage'] - 1;
 106     } else if (! empty( $_POST['same'] )) {
 107         $nextstage = $_POST['stage'];
 108     }
 109
 110
 111     if ($nextstage < 0) {
 112         $nextstage = WELCOME;
 113     }
 114
 115
 116 } else {
 117
 118     $goforward = true;
 119     $nextstage = WELCOME;
 120
 121 }
 122
 123 //==========================================================================//
 124
 125 /// Fake some settings so that we can use selected functions from moodlelib.php and weblib.php
 126
 127 $SESSION->lang = (!empty($_POST['language'])) ? $_POST['language'] : $INSTALL['language'];
 128 $CFG->dirroot = $INSTALL['dirroot'];
 129 $CFG->libdir = $INSTALL['dirroot'].'/lib';
 130 $CFG->dataroot = $INSTALL['dataroot'];
 131 $CFG->admin = $INSTALL['admindirname'];
 132 $CFG->directorypermissions = 00777;
 133 $CFG->running_installer = true;
 134 $COURSE->id = 0;
 135
 136 /// Include some moodle libraries
 137
 138 require_once($CFG->libdir.'/adminlib.php');
 139 require_once($CFG->libdir.'/setuplib.php');
 140 require_once($CFG->libdir.'/moodlelib.php');
 141 require_once($CFG->libdir.'/weblib.php');
 142 require_once($CFG->libdir.'/deprecatedlib.php');
 143 require_once($CFG->libdir.'/adodb/adodb.inc.php');
 144 require_once($CFG->libdir.'/environmentlib.php');
 145 require_once($CFG->libdir.'/xmlize.php');
 146 require_once($CFG->libdir.'/componentlib.class.php');
 147 require_once($CFG->dirroot.'/version.php');
 148
 149 /// Set version and release
 150 $INSTALL['version'] = $version;
 151 $INSTALL['release'] = $release;
 152
 153 /// Have the $db object ready because we are going to use it often
 154 define ('ADODB_ASSOC_CASE', 0); //Use lowercase fieldnames for ADODB_FETCH_ASSOC
 155 $db = &ADONewConnection($INSTALL['dbtype']);
 156 $db->SetFetchMode(ADODB_FETCH_ASSOC);
 157
 158 /// guess the www root
 159 if ($INSTALL['wwwroot'] == '') {
 160     list($INSTALL['wwwroot'], $xtra) = explode('/install.php', qualified_me());
 161     $INSTALL['wwwrootform'] = $INSTALL['wwwroot'];
 162
 163     // now try to guess the correct dataroot not accessible via web
 164     $CFG->wwwroot = $INSTALL['wwwroot'];
 165     $i = 0; //safety check - dirname might return some unexpected results
 166     while(is_dataroot_insecure()) {
 167         $parrent = dirname($CFG->dataroot);
 168         $i++;
 169         if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {
 170             $CFG->dataroot = ''; //can not find secure location for dataroot
 171             break;
 172         }
 173         $CFG->dataroot = dirname($parrent).'/moodledata';
 174     }
 175     $INSTALL['dataroot'] = $CFG->dataroot;
 176 }
 177
 178 $headstagetext = array(WELCOME       => get_string('chooselanguagehead', 'install'),
 179                        COMPATIBILITY => get_string('compatibilitysettingshead', 'install'),
 180                        DIRECTORY     => get_string('directorysettingshead', 'install'),
 181                        DATABASE      => get_string('databasesettingshead', 'install'),
 182                        ADMIN         => get_string('admindirsettinghead', 'install'),
 183                        ENVIRONMENT   => get_string('environmenthead', 'install'),
 184                        DOWNLOADLANG  => get_string('downloadlanguagehead', 'install'),
 185                        SAVE          => get_string('configurationcompletehead', 'install')
 186                         );
 187
 188 $substagetext = array(WELCOME       => get_string('chooselanguagesub', 'install'),
 189                       COMPATIBILITY => get_string('compatibilitysettingssub', 'install'),
 190                       DIRECTORY     => get_string('directorysettingssub', 'install'),
 191                       DATABASE      => get_string('databasesettingssub', 'install'),
 192                       ADMIN         => get_string('admindirsettingsub', 'install'),
 193                       ENVIRONMENT   => get_string('environmentsub', 'install'),
 194                       DOWNLOADLANG  => get_string('downloadlanguagesub', 'install'),
 195                       SAVE          => get_string('configurationcompletesub', 'install')
 196                        );
 197
 198
 199
 200 //==========================================================================//
 201
 202 /// Are we in help mode?
 203
 204 if (isset($_GET['help'])) {
 205     $nextstage = -1;
 206 }
 207
 208
 209
 210 //==========================================================================//
 211
 212 /// Are we in config download mode?
 213
 214 if (isset($_GET['download'])) {
 215     header("Content-Type: application/x-forcedownload\n");
 216     header("Content-Disposition: attachment; filename=\"config.php\"");
 217     echo $INSTALL['config'];
 218     exit;
 219 }
 220
 221
 222
 223
 224
 225 //==========================================================================//
 226
 227 /// Check the directory settings
 228
 229 if ($INSTALL['stage'] == DIRECTORY) {
 230
 231     error_reporting(0);
 232
 233     /// check wwwroot
 234     if (ini_get('allow_url_fopen') && false) {  /// This was not reliable
 235         if (($fh = @fopen($INSTALL['wwwrootform'].'/install.php', 'r')) === false) {
 236             $errormsg .= get_string('wwwrooterror', 'install').'<br />';
 237             $INSTALL['wwwrootform'] = $INSTALL['wwwroot'];
 238         }
 239     }
 240     if ($fh) fclose($fh);
 241
 242     /// check dirroot
 243     if (($fh = @fopen($INSTALL['dirrootform'].'/install.php', 'r')) === false ) {
 244         $errormsg .= get_string('dirrooterror', 'install').'<br />';
 245         $INSTALL['dirrootform'] = $INSTALL['dirroot'];
 246     }
 247     if ($fh) fclose($fh);
 248
 249     /// check dataroot
 250     $CFG->dataroot = $INSTALL['dataroot'];
 251     if (make_upload_directory('sessions', false) === false ) {
 252         $errormsg .= get_string('datarooterror', 'install').'<br />';
 253     }
 254     if ($fh) fclose($fh);
 255
 256     if (!empty($errormsg)) $nextstage = DIRECTORY;
 257
 258     error_reporting(7);
 259 }
 260
 261
 262
 263 //==========================================================================//
 264
 265 /// Check database settings if stage 3 data submitted
 266 /// Try to connect to the database. If that fails then try to create the database
 267
 268 if ($INSTALL['stage'] == DATABASE) {
 269
 270     /// different format for postgres7 by socket
 271     if ($INSTALL['dbtype'] == 'postgres7' and ($INSTALL['dbhost'] == 'localhost' || $INSTALL['dbhost'] == '127.0.0.1')) {
 272         $INSTALL['dbhost'] = "user='{$INSTALL['dbuser']}' password='{$INSTALL['dbpass']}' dbname='{$INSTALL['dbname']}'";
 273         $INSTALL['dbuser'] = '';
 274         $INSTALL['dbpass'] = '';
 275         $INSTALL['dbname'] = '';
 276
 277         if ($INSTALL['prefix'] == '') { /// must have a prefix
 278             $INSTALL['prefix'] = 'mdl_';
 279         }
 280     }
 281
 282     if ($INSTALL['dbtype'] == 'mysql') {  /// Check MySQL extension is present
 283         if (!extension_loaded('mysql')) {
 284             $errormsg = get_string('mysqlextensionisnotpresentinphp', 'install');
 285             $nextstage = DATABASE;
 286         }
 287     }
 288
 289     if ($INSTALL['dbtype'] == 'mysqli') {  /// Check MySQLi extension is present
 290         if (!extension_loaded('mysqli')) {
 291             $errormsg = get_string('mysqliextensionisnotpresentinphp', 'install');
 292             $nextstage = DATABASE;
 293         }
 294     }
 295
 296     if ($INSTALL['dbtype'] == 'postgres7') {  /// Check PostgreSQL extension is present
 297         if (!extension_loaded('pgsql')) {
 298             $errormsg = get_string('pgsqlextensionisnotpresentinphp', 'install');
 299             $nextstage = DATABASE;
 300         }
 301     }
 302
 303     if ($INSTALL['dbtype'] == 'mssql') {  /// Check MSSQL extension is present
 304         if (!function_exists('mssql_connect')) {
 305             $errormsg = get_string('mssqlextensionisnotpresentinphp', 'install');
 306             $nextstage = DATABASE;
 307         }
 308     }
 309
 310     if ($INSTALL['dbtype'] == 'mssql_n') {  /// Check MSSQL extension is present
 311         if (!function_exists('mssql_connect')) {
 312             $errormsg = get_string('mssqlextensionisnotpresentinphp', 'install');
 313             $nextstage = DATABASE;
 314         }
 315     }
 316
 317     if ($INSTALL['dbtype'] == 'odbc_mssql') {  /// Check ODBC extension is present
 318         if (!extension_loaded('odbc')) {
 319             $errormsg = get_string('odbcextensionisnotpresentinphp', 'install');
 320             $nextstage = DATABASE;
 321         }
 322     }
 323
 324     if ($INSTALL['dbtype'] == 'oci8po') {  /// Check OCI extension is present
 325         if (!extension_loaded('oci8')) {
 326             $errormsg = get_string('ociextensionisnotpresentinphp', 'install');
 327             $nextstage = DATABASE;
 328         }
 329     }
 330
 331     if (empty($INSTALL['prefix']) && $INSTALL['dbtype'] != 'mysql' && $INSTALL['dbtype'] != 'mysqli') { // All DBs but MySQL require prefix (reserv. words)
 332         $errormsg = get_string('dbwrongprefix', 'install');
 333         $nextstage = DATABASE;
 334     }
 335
 336     if ($INSTALL['dbtype'] == 'oci8po' && strlen($INSTALL['prefix']) > 2) { // Oracle max prefix = 2cc (30cc limit)
 337         $errormsg = get_string('dbwrongprefix', 'install');
 338         $nextstage = DATABASE;
 339     }
 340
 341     if ($INSTALL['dbtype'] == 'oci8po' && !empty($INSTALL['dbhost'])) { // Oracle host must be blank (tnsnames.ora has it)
 342         $errormsg = get_string('dbwronghostserver', 'install');
 343         $nextstage = DATABASE;
 344     }
 345
 346     if (empty($errormsg)) {
 347
 348         error_reporting(0);  // Hide errors
 349
 350         if (! $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname'])) {
 351             /// The following doesn't seem to work but we're working on it
 352             /// If you come up with a solution for creating a database in MySQL
 353             /// feel free to put it in and let us know
 354             if ($dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'])) {
 355                 switch ($INSTALL['dbtype']) {   /// Try to create a database
 356                     case 'mysql':
 357                     case 'mysqli':
 358                         if ($db->Execute("CREATE DATABASE {$INSTALL['dbname']};")) {
 359                             $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname']);
 360                         } else {
 361                             $errormsg = get_string('dbcreationerror', 'install');
 362                             $nextstage = DATABASE;
 363                         }
 364                         break;
 365                 }
 366             }
 367         } else {
 368         /// We have been able to connect properly, just test the database encoding now.
 369         /// It must be Unicode for 1.8 installations.
 370             $encoding = '';
 371             switch ($INSTALL['dbtype']) {
 372                 case 'mysql':
 373                 case 'mysqli':
 374                 /// Get MySQL character_set_database value
 375                     $rs = $db->Execute("SHOW VARIABLES LIKE 'character_set_database'");
 376                     if ($rs && !$rs->EOF) {
 377                         $records = $rs->GetAssoc(true);
 378                         $encoding = $records['character_set_database']['Value'];
 379                         if (strtoupper($encoding) != 'UTF8') {
 380                         /// Try to set the encoding now!
 381                             if (! $db->Metatables()) {  // We have no tables so go ahead
 382                                 $db->Execute("ALTER DATABASE `".$INSTALL['dbname']."` DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci");
 383                                 $rs = $db->Execute("SHOW VARIABLES LIKE 'character_set_database'");  // this works
 384
 385                             }
 386                         }
 387                         /// If conversion fails, skip, let environment testing do the job
 388                     }
 389                     break;
 390                 case 'postgres7':
 391                 /// Skip, let environment testing do the job
 392                     break;
 393                 case 'oci8po':
 394                 /// Skip, let environment testing do the job
 395                     break;
 396             }
 397         }
 398     }
 399
 400     error_reporting(7);
 401
 402     if (($dbconnected === false) and (empty($errormsg)) ) {
 403         $errormsg = get_string('dbconnectionerror', 'install');
 404         $nextstage = DATABASE;
 405     }
 406 }
 407
 408
 409
 410 //==========================================================================//
 411
 412 /// If the next stage is admin directory settings OR we have just come from there then
 413 /// check the admin directory.
 414 /// If we can open a file then we know that the admin name is correct.
 415
 416 if ($nextstage == ADMIN or $INSTALL['stage'] == ADMIN) {
 417     if (!ini_get('allow_url_fopen')) {
 418         $nextstage = ($goforward) ? ENVIRONMENT : DATABASE;
 419     } else if (($fh = @fopen($INSTALL['wwwrootform'].'/'.$INSTALL['admindirname'].'/environment.xml', 'r')) !== false) {
 420         $nextstage = ($goforward) ? ENVIRONMENT : DATABASE;
 421         fclose($fh);
 422     } else {
 423         $nextstage = ($goforward) ? ENVIRONMENT : DATABASE;
 424         //if ($nextstage != ADMIN) {
 425         //    $errormsg = get_string('admindirerror', 'install');
 426         //    $nextstage = ADMIN;
 427         // }
 428     }
 429 }
 430
 431 //==========================================================================//
 432
 433 // Check if we can navigate from the environemt page (because it's ok)
 434
 435 if ($INSTALL['stage'] == ENVIRONMENT) {
 436     error_reporting(0);  // Hide errors
 437     $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname']);
 438     error_reporting(7);  // Show errors
 439     if ($dbconnected) {
 440     /// Execute environment check, printing results
 441         if (!check_moodle_environment($INSTALL['release'], $environment_results, false)) {
 442              $nextstage = ENVIRONMENT;
 443         }
 444     } else {
 445     /// We never should reach this because DB has been tested before arriving here
 446         $errormsg = get_string('dbconnectionerror', 'install');
 447         $nextstage = DATABASE;
 448     }
 449 }
 450
 451
 452
 453 //==========================================================================//
 454
 455 // Try to download the lang pack if it has been selected
 456
 457 if ($INSTALL['stage'] == DOWNLOADLANG && $INSTALL['downloadlangpack']) {
 458
 459     $downloadsuccess = false;
 460     $downloaderror = '';
 461
 462     error_reporting(0);  // Hide errors
 463
 464 /// Create necessary lang dir
 465     if (!make_upload_directory('lang', false)) {
 466         $downloaderror = get_string('cannotcreatelangdir', 'error');
 467     }
 468
 469 /// Download and install component
 470     if (($cd = new component_installer('http://download.moodle.org', 'lang16',
 471         $INSTALL['language'].'.zip', 'languages.md5', 'lang')) && empty($errormsg)) {
 472         $status = $cd->install(); //returns ERROR | UPTODATE | INSTALLED
 473         switch ($status) {
 474             case ERROR:
 475                 if ($cd->get_error() == 'remotedownloadnotallowed') {
 476                     $a = new stdClass();
 477                     $a->url = 'http://download.moodle.org/lang16/'.$pack.'.zip';
 478                     $a->dest= $CFG->dataroot.'/lang';
 479                     $downloaderror = get_string($cd->get_error(), 'error', $a);
 480                 } else {
 481                     $downloaderror = get_string($cd->get_error(), 'error');
 482                 }
 483             break;
 484             case UPTODATE:
 485             case INSTALLED:
 486                 $downloadsuccess = true;
 487             break;
 488             default:
 489                 //We shouldn't reach this point
 490         }
 491     } else {
 492         //We shouldn't reach this point
 493     }
 494
 495     error_reporting(7);  // Show errors
 496
 497     if ($downloadsuccess) {
 498         $INSTALL['downloadlangpack']       = false;
 499         $INSTALL['showdownloadlangpack']   = false;
 500         $INSTALL['downloadlangpackerror']  = $downloaderror;
 501     } else {
 502         $INSTALL['downloadlangpack']       = false;
 503         $INSTALL['showdownloadlangpack']   = false;
 504         $INSTALL['downloadlangpackerror']  = $downloaderror;
 505     }
 506 }
 507
 508
 509
 510 //==========================================================================//
 511
 512 /// Display or print the data
 513 /// Put the data into a string
 514 /// Try to open config file for writing.
 515
 516 if ($nextstage == SAVE) {
 517
 518     $str  = '<?php  /// Moodle Configuration File '."\r\n";
 519     $str .= "\r\n";
 520
 521     $str .= 'unset($CFG);'."\r\n";
 522     $str .= "\r\n";
 523
 524     $str .= '$CFG->dbtype    = \''.$INSTALL['dbtype']."';\r\n";
 525     $str .= '$CFG->dbhost    = \''.addslashes($INSTALL['dbhost'])."';\r\n";
 526     if (!empty($INSTALL['dbname'])) {
 527         $str .= '$CFG->dbname    = \''.$INSTALL['dbname']."';\r\n";
 528         $str .= '$CFG->dbuser    = \''.$INSTALL['dbuser']."';\r\n";
 529         $str .= '$CFG->dbpass    = \''.$INSTALL['dbpass']."';\r\n";
 530     }
 531     $str .= '$CFG->dbpersist =  false;'."\r\n";
 532     $str .= '$CFG->prefix    = \''.$INSTALL['prefix']."';\r\n";
 533     $str .= "\r\n";
 534
 535     $str .= '$CFG->wwwroot   = \''.s($INSTALL['wwwrootform'],true)."';\r\n";
 536     $str .= '$CFG->dirroot   = \''.s($INSTALL['dirrootform'],true)."';\r\n";
 537     $str .= '$CFG->dataroot  = \''.s($INSTALL['dataroot'],true)."';\r\n";
 538     $str .= '$CFG->admin     = \''.s($INSTALL['admindirname'],true)."';\r\n";
 539     $str .= "\r\n";
 540
 541     $str .= '$CFG->directorypermissions = 00777;  // try 02777 on a server in Safe Mode'."\r\n";
 542     $str .= "\r\n";
 543
 544     $str .= 'require_once("$CFG->dirroot/lib/setup.php");'."\r\n";
 545     $str .= '// MAKE SURE WHEN YOU EDIT THIS FILE THAT THERE ARE NO SPACES, BLANK LINES,'."\r\n";
 546     $str .= '// RETURNS, OR ANYTHING ELSE AFTER THE TWO CHARACTERS ON THE NEXT LINE.'."\r\n";
 547     $str .= '?>';
 548
 549     umask(0137);
 550
 551     if (( $configsuccess = ($fh = @fopen($configfile, 'w')) ) !== false) {
 552         fwrite($fh, $str);
 553         fclose($fh);
 554     }
 555
 556
 557     $INSTALL['config'] = $str;
 558 }
 559
 560
 561
 562 //==========================================================================//
 563
 564 ?>
 565 <html dir="<?php echo (right_to_left() ? 'rtl' : 'ltr'); ?>">
 566 <head>
 567 <link rel="shortcut icon" href="theme/standard/favicon.ico" />
 568 <title>Moodle Install</title>
 569 <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
 570 <?php css_styles() ?>
 571 <?php database_js() ?>
 572
 573 </head>
 574
 575 <body>
 576
 577
 578 <?php
 579 if (isset($_GET['help'])) {
 580     print_install_help($_GET['help']);
 581     close_window_button();
 582 } else {
 583 ?>
 584
 585
 586 <table class="main" align="center" cellpadding="3" cellspacing="0">
 587     <tr>
 588         <td class="td_mainlogo">
 589             <p class="p_mainlogo"><img src="pix/moodlelogo-med.gif" width="240" height="60" alt="Moodle logo"></p>
 590         </td>
 591         <td class="td_mainlogo" valign="bottom">
 592             <p class="p_mainheader"><?php print_string('installation', 'install') ?></p>
 593         </td>
 594     </tr>
 595
 596     <tr>
 597         <td class="td_mainheading" colspan="2">
 598             <p class="p_mainheading"><?php echo $headstagetext[$nextstage] ?></p>
 599             <?php /// Exceptionaly, depending of the DB selected, we show some different text
 600                   /// from the standard one to show better instructions for each DB
 601                 if ($nextstage == DATABASE) {
 602                     echo '<script type="text/javascript" defer="defer">window.onload=toggledbinfo;</script>';
 603                     echo '<div id="mysql" name="mysql">' . get_string('databasesettingssub_mysql', 'install') . '</div>';
 604
 605                     echo '<div id="mysqli" name="mysqli">' . get_string('databasesettingssub_mysqli', 'install') . '</div>';
 606
 607                     echo '<div id="postgres7" name="postgres7">' . get_string('databasesettingssub_postgres7', 'install') . '</div>';
 608
 609                     echo '<div id="mssql" name="mssql">' . get_string('databasesettingssub_mssql', 'install');
 610                 /// Link to mssql installation page
 611                     echo '<p align="right"><a href="http://docs.moodle.org/en/Installing_MSSQL_for_PHP" target="_blank">';
 612                     echo '<img src="pix/docs.gif' . '" alt="Docs" class="iconhelp" />';
 613                     echo get_string('moodledocslink', 'install') . '</a></p>';
 614                     echo '</div>';
 615
 616                     echo '<div id="mssql_n" name="mssql">' . get_string('databasesettingssub_mssql_n', 'install');
 617                 /// Link to mssql installation page
 618                     echo '<p align="right"><a href="http://docs.moodle.org/en/Installing_MSSQL_for_PHP" target="_blank">';
 619                     echo '<img src="pix/docs.gif' . '" alt="Docs" />';
 620                     echo get_string('moodledocslink', 'install') . '</a></p>';
 621                     echo '</div>';
 622
 623                     echo '<div id="odbc_mssql" name="odbc_mssql">'. get_string('databasesettingssub_odbc_mssql', 'install');
 624                 /// Link to mssql installation page
 625                     echo '<p align="right"><a href="http://docs.moodle.org/en/Installing_MSSQL_for_PHP" target="_blank">';
 626                     echo '<img src="pix/docs.gif' . '" alt="Docs" class="iconhelp" />';
 627                     echo get_string('moodledocslink', 'install') . '</a></p>';
 628                     echo '</div>';
 629
 630                     echo '<div id="oci8po" name="oci8po">' . get_string('databasesettingssub_oci8po', 'install');
 631                 /// Link to oracle installation page
 632                     echo '<p align="right"><a href="http://docs.moodle.org/en/Installing_Oracle_for_PHP" target="_blank">';
 633                     echo '<img src="pix/docs.gif' . '" alt="Docs" class="iconhelp" />';
 634                     echo get_string('moodledocslink', 'install') . '</a></p>';
 635                     echo '</div>';
 636                 } else {
 637                     if (!empty($substagetext[$nextstage])) {
 638                         echo '<p class="p_subheading">' . $substagetext[$nextstage] . '</p>';
 639                     }
 640                 }
 641             ?>
 642         </td>
 643     </tr>
 644
 645     <tr>
 646         <td class="td_main" colspan="2">
 647
 648 <?php
 649
 650 if (!empty($errormsg)) echo "<p class=\"errormsg\" align=\"center\">$errormsg</p>\n";
 651
 652
 653 if ($nextstage == SAVE) {
 654     $INSTALL['stage'] = WELCOME;
 655     $options = array();
 656     $options['lang'] = $INSTALL['language'];
 657     if ($configsuccess) {
 658         echo "<p>".get_string('configfilewritten', 'install')."</p>\n";
 659
 660         echo "<table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" width=\"100%\">\n";
 661         echo "<tr>\n";
 662         echo "<td width=\"33.3%\">&nbsp;</td>\n";
 663         echo "<td width=\"33.3%\">&nbsp;</td>\n";
 664         echo "<td width=\"33.3%\" align=\"right\">\n";
 665         print_single_button("index.php", $options, get_string('continue'));
 666         echo "</td>\n";
 667         echo "</tr>\n";
 668         echo "</table>\n";
 669
 670     } else {
 671         echo "<p class=\"errormsg\">".get_string('configfilenotwritten', 'install')."</p>";
 672
 673         echo "<table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" width=\"100%\">\n";
 674         echo "<tr>\n";
 675         echo "<td width=\"33.3%\">&nbsp;</td>\n";
 676         echo "<td width=\"33.3%\" align=\"center\">\n";
 677         $installoptions = array();
 678         $installoptions['download'] = 1;
 679         print_single_button("install.php", $installoptions, get_string('download', 'install'));
 680         echo "</td>\n";
 681         echo "<td width=\"33.3%\" align=\"right\">\n";
 682         print_single_button("index.php", $options, get_string('continue'));
 683         echo "</td>\n";
 684         echo "</tr>\n";
 685         echo "</table>\n";
 686
 687         echo "<hr />\n";
 688         echo "<div style=\"text-align: ".fix_align_rtl("left")."\">\n";
 689         echo "<pre>\n";
 690         print_r(s($str));
 691         echo "</pre>\n";
 692         echo "</div>\n";
 693     }
 694 } else {
 695     $formaction = (isset($_GET['configfile'])) ? "install.php?configfile=".$_GET['configfile'] : "install.php";
 696     form_table($nextstage, $formaction);
 697 }
 698
 699 ?>
 700
 701         </td>
 702     </tr>
 703 </table>
 704
 705 <?php
 706 }
 707 ?>
 708
 709 </body>
 710 </html>
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721 <?php
 722
 723
 724 //==========================================================================//
 725
 726 function form_table($nextstage = WELCOME, $formaction = "install.php") {
 727     global $INSTALL, $db;
 728
 729     /// Print the standard form if we aren't in the DOWNLOADLANG page
 730     /// because it has its own form.
 731     if ($nextstage != DOWNLOADLANG) {
 732         $needtoopenform = false;
 733 ?>
 734         <form id="installform" method="post" action="<?php echo $formaction ?>">
 735         <input type="hidden" name="stage" value="<?php echo $nextstage ?>" />
 736
 737 <?php
 738     } else {
 739         $needtoopenform = true;
 740     }
 741 ?>
 742     <table class="install_table" cellspacing="3" cellpadding="3" align="center">
 743
 744 <?php
 745     /// what we do depends on the stage we're at
 746     switch ($nextstage) {
 747         case WELCOME: /// Welcome and language settings
 748 ?>
 749             <tr>
 750                 <td class="td_left"><p><?php print_string('language') ?></p></td>
 751                 <td class="td_right">
 752                 <?php choose_from_menu (get_installer_list_of_languages(), 'language', $INSTALL['language'], '') ?>
 753                 </td>
 754             </tr>
 755
 756 <?php
 757             break;
 758         case COMPATIBILITY: /// Compatibilty check
 759             $compatsuccess = true;
 760
 761             /// Check that PHP is of a sufficient version
 762             print_compatibility_row(inst_check_php_version(), get_string('phpversion', 'install'), get_string('phpversionerror', 'install'), 'phpversionhelp');
 763             /// Check session auto start
 764             print_compatibility_row(!ini_get_bool('session.auto_start'), get_string('sessionautostart', 'install'), get_string('sessionautostarterror', 'install'), 'sessionautostarthelp');
 765             /// Check magic quotes
 766             print_compatibility_row(!ini_get_bool('magic_quotes_runtime'), get_string('magicquotesruntime', 'install'), get_string('magicquotesruntimeerror', 'install'), 'magicquotesruntimehelp');
 767             /// Check unsupported PHP configuration
 768             print_compatibility_row(ini_get_bool('magic_quotes_gpc') || (!ini_get_bool('register_globals')), get_string('globalsquotes', 'install'), get_string('globalsquoteserror', 'install'), 'globalsquoteshelp');
 769             /// Check safe mode
 770             print_compatibility_row(!ini_get_bool('safe_mode'), get_string('safemode', 'install'), get_string('safemodeerror', 'install'), 'safemodehelp', true);
 771             /// Check file uploads
 772             print_compatibility_row(ini_get_bool('file_uploads'), get_string('fileuploads', 'install'), get_string('fileuploadserror', 'install'), 'fileuploadshelp', true);
 773             /// Check GD version
 774             print_compatibility_row(check_gd_version(), get_string('gdversion', 'install'), get_string('gdversionerror', 'install'), 'gdversionhelp', true);
 775             /// Check memory limit
 776             print_compatibility_row(check_memory_limit(), get_string('memorylimit', 'install'), get_string('memorylimiterror', 'install'), 'memorylimithelp', true);
 777
 778
 779             break;
 780         case DIRECTORY: /// Directory settings
 781 ?>
 782
 783             <tr>
 784                 <td class="td_left"><p><?php print_string('wwwroot', 'install') ?></p></td>
 785                 <td class="td_right">
 786                     <input type="text" size="40"name="wwwrootform" value="<?php p($INSTALL['wwwrootform'],true) ?>" />
 787                 </td>
 788             </tr>
 789             <tr>
 790                 <td class="td_left"><p><?php print_string('dirroot', 'install') ?></p></td>
 791                 <td class="td_right">
 792                     <input type="text" size="40" name="dirrootform" disabled="disabled" value="<?php p($INSTALL['dirrootform'],true) ?>" />
 793                 </td>
 794             </tr>
 795             <tr>
 796                 <td class="td_left"><p><?php print_string('dataroot', 'install') ?></p></td>
 797                 <td class="td_right">
 798                     <input type="text" size="40" name="dataroot" value="<?php p($INSTALL['dataroot'],true) ?>" />
 799                 </td>
 800             </tr>
 801
 802 <?php
 803             break;
 804         case DATABASE: /// Database settings
 805 ?>
 806
 807             <tr>
 808                 <td class="td_left"><p><?php print_string('dbtype', 'install') ?></p></td>
 809                 <td class="td_right">
 810                 <?php choose_from_menu (array('mysql' => get_string('mysql', 'install'),
 811                                               'mysqli' => get_string('mysqli', 'install'),
 812                                               'oci8po' => get_string('oci8po', 'install'),
 813                                               'postgres7' => get_string('postgres7', 'install'),
 814                                               'mssql' => get_string('mssql', 'install'),
 815                                               'mssql_n' => get_string('mssql_n', 'install'),
 816                                               'odbc_mssql' => get_string('odbc_mssql', 'install')),
 817                                         'dbtype', $INSTALL['dbtype'], '', 'toggledbinfo();') ?>
 818                 </td>
 819             </tr>
 820             <tr>
 821                 <td class="td_left"><p><?php print_string('dbhost', 'install') ?></p></td>
 822                 <td class="td_right">
 823                     <input type="text" size="40" name="dbhost" value="<?php echo $INSTALL['dbhost'] ?>" />
 824                 </td>
 825             </tr>
 826             <tr>
 827                 <td class="td_left"><p><?php print_string('database', 'install') ?></p></td>
 828                 <td class="td_right">
 829                     <input type="text" size="40" name="dbname" value="<?php echo $INSTALL['dbname'] ?>" />
 830                 </td>
 831             </tr>
 832             <tr>
 833                 <td class="td_left"><p><?php print_string('user') ?></p></td>
 834                 <td class="td_right">
 835                     <input type="text" size="40" name="dbuser" value="<?php echo $INSTALL['dbuser'] ?>" />
 836                 </td>
 837             </tr>
 838             <tr>
 839                 <td class="td_left"><p><?php print_string('password') ?></p></td>
 840                 <td class="td_right">
 841                     <input type="password" size="40" name="dbpass" value="<?php echo $INSTALL['dbpass'] ?>" />
 842                 </td>
 843             </tr>
 844             <tr>
 845                 <td class="td_left"><p><?php print_string('dbprefix', 'install') ?></p></td>
 846                 <td class="td_right">
 847                     <input type="text" size="40" name="prefix" value="<?php echo $INSTALL['prefix'] ?>" />
 848                 </td>
 849             </tr>
 850
 851 <?php
 852             break;
 853         case ADMIN: /// Administration directory setting
 854 ?>
 855
 856             <tr>
 857                 <td class="td_left"><p><?php print_string('admindirname', 'install') ?></p></td>
 858                 <td class="td_right">
 859                     <input type="text" size="40" name="admindirname" value="<?php echo $INSTALL['admindirname'] ?>" />
 860                 </td>
 861             </tr>
 862
 863
 864 <?php
 865             break;
 866         case ENVIRONMENT: /// Environment checks
 867 ?>
 868
 869             <tr>
 870                 <td colspan="2">
 871                 <?php
 872                     error_reporting(0);  // Hide errors
 873                     $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname']);
 874                     error_reporting(7);  // Show errors
 875                     if ($dbconnected) {
 876                     /// Execute environment check, printing results
 877                         check_moodle_environment($INSTALL['release'], $environment_results, true);
 878                     } else {
 879                     /// We never should reach this because DB has been tested before arriving here
 880                         $errormsg = get_string('dbconnectionerror', 'install');
 881                         $nextstage = DATABASE;
 882                         echo '<p class="errormsg" align="center">'.get_string('dbconnectionerror', 'install').'</p>';
 883                     }
 884                 ?>
 885                 </td>
 886             </tr>
 887
 888 <?php
 889             break;
 890         case DOWNLOADLANG: /// Download language from download.moodle.org
 891 ?>
 892
 893             <tr>
 894                 <td colspan="2">
 895                 <?php
 896                 /// Get array of languages, we are going to use it
 897                     $languages=get_installer_list_of_languages();
 898                 /// Print the download form (button) if necessary
 899                     if ($INSTALL['showdownloadlangpack'] == true && substr($INSTALL['language'],0,2) != 'en') {
 900                         $options = array();
 901                         $options['downloadlangpack'] = true;
 902                         $options['stage'] = DOWNLOADLANG;
 903                         $options['same'] = true;
 904                         print_simple_box_start('center');
 905                         print_single_button('install.php', $options, get_string('downloadlanguagebutton','install', $languages[$INSTALL['language']]), 'POST');
 906                         print_simple_box_end();
 907                     } else {
 908                 /// Show result info
 909                     /// English lang packs aren't downloaded
 910                         if (substr($INSTALL['language'],0,2) == 'en') {
 911                             print_simple_box(get_string('downloadlanguagenotneeded', 'install', $languages[$INSTALL['language']]), 'center', '80%');
 912                         } else {
 913                             if ($INSTALL['downloadlangpackerror']) {
 914                                 echo "<p class=\"errormsg\" align=\"center\">".$INSTALL['downloadlangpackerror']."</p>\n";
 915                                 print_simple_box(get_string('langdownloaderror', 'install', $languages[$INSTALL['language']]), 'center', '80%');
 916                             } else {
 917                                 print_simple_box(get_string('langdownloadok', 'install', $languages[$INSTALL['language']]), 'center', '80%');
 918                             }
 919                         }
 920                     }
 921                 ?>
 922                 </td>
 923             </tr>
 924
 925 <?php
 926             break;
 927         default:
 928     }
 929 ?>
 930
 931     <tr>
 932         <td colspan="<?php echo ($nextstage == COMPATIBILITY) ? 3 : 2; ?>">
 933
 934 <?php
 935     if ($needtoopenform) {
 936 ?>
 937             <form id="installform" method="post" action="<?php echo $formaction ?>">
 938             <input type="hidden" name="stage" value="<?php echo $nextstage ?>" />
 939 <?php
 940     }
 941 ?>
 942
 943             <?php echo ($nextstage < SAVE) ? "<input type=\"submit\" name=\"next\" value=\"".get_string('next')."  &raquo;\" style=\"float: ".fix_align_rtl("right")."\"/>\n" : "&nbsp;\n" ?>
 944             <?php echo ($nextstage > WELCOME) ? "<input type=\"submit\" name=\"prev\" value=\"&laquo;  ".get_string('previous')."\" style=\"float: ".fix_align_rtl("left")."\"/>\n" : "&nbsp;\n" ?>
 945
 946 <?php
 947     if ($needtoopenform) {
 948 ?>
 949             </form>
 950 <?php
 951     }
 952 ?>
 953
 954
 955         </td>
 956
 957     </tr>
 958
 959     </table>
 960 <?php
 961     if (!$needtoopenform) {
 962 ?>
 963     </form>
 964 <?php
 965     }
 966 ?>
 967
 968 <?php
 969 }
 970
 971
 972
 973 //==========================================================================//
 974
 975 function print_compatibility_row($success, $testtext, $errormessage, $helpfield='', $caution=false) {
 976     echo "<tr>\n";
 977     echo "<td class=\"td_left\" valign=\"top\" nowrap width=\"160\"><p>$testtext</p></td>\n";
 978     if ($success) {
 979         echo "<td valign=\"top\"><p class=\"p_pass\">".get_string('pass', 'install')."</p></td>\n";
 980         echo "<td valign=\"top\">&nbsp;</td>\n";
 981     } else {
 982         echo "<td valign=\"top\"";
 983         echo ($caution) ? "<p class=\"p_caution\">".get_string('caution', 'install') : "<p class=\"p_fail\">".get_string('fail', 'install');
 984         echo "</p></td>\n";
 985         echo "<td valign=\"top\">";
 986         echo "<p>$errormessage ";
 987         install_helpbutton("install.php?help=$helpfield");
 988         echo "</p></td>\n";
 989     }
 990     echo "</tr>\n";
 991     return $success;
 992 }
 993
 994
 995 //==========================================================================//
 996
 997 function install_helpbutton($url, $title='') {
 998     if ($title == '') {
 999         $title = get_string('help');
1000     }
1001     echo "<a href=\"javascript: void(0)\">";
1002     echo "<img src=\"pix/help.gif\" class=\"iconhelp\" alt=\"$title\" title=\"$title\" ";
1003     echo "onClick=\"return window.open('$url', 'Help', 'menubar=0,location=0,scrollbars,resizable,width=500,height=400')\">";
1004     echo "</a>\n";
1005 }
1006
1007
1008
1009 //==========================================================================//
1010
1011 function print_install_help($help) {
1012     switch ($help) {
1013         case 'phpversionhelp':
1014             print_string($help, 'install', phpversion());
1015             break;
1016         case 'memorylimithelp':
1017             print_string($help, 'install', get_memory_limit());
1018             break;
1019         default:
1020             print_string($help, 'install');
1021     }
1022 }
1023
1024
1025 //==========================================================================//
1026
1027 function get_memory_limit() {
1028     if ($limit = ini_get('memory_limit')) {
1029         return $limit;
1030     } else {
1031         return get_cfg_var('memory_limit');
1032     }
1033 }
1034
1035 //==========================================================================//
1036
1037 function check_memory_limit() {
1038
1039     /// if limit is already 40 or more then we don't care if we can change it or not
1040     if ((int)str_replace('M', '', get_memory_limit()) >= 40) {
1041         return true;
1042     }
1043
1044     /// Otherwise, see if we can change it ourselves
1045     @ini_set('memory_limit', '40M');
1046     return ((int)str_replace('M', '', get_memory_limit()) >= 40);
1047 }
1048
1049 //==========================================================================//
1050
1051 function inst_check_php_version() {
1052     if (!check_php_version("4.3.0")) {
1053         return false;
1054     } else if (check_php_version("5.0.0")) {
1055         return check_php_version("5.1.0"); // 5.0.x is too buggy
1056     }
1057     return true; // 4.3.x or 4.4.x is fine
1058 }
1059 //==========================================================================//
1060
1061 /* This function returns a list of languages and their full names. The
1062  * list of available languages is fetched from install/lang/xx/installer.php
1063  * and it's used exclusively by the installation process
1064  * @return array An associative array with contents in the form of LanguageCode => LanguageName
1065  */
1066 function get_installer_list_of_languages() {
1067
1068     global $CFG;
1069
1070     $languages = array();
1071
1072 /// Get raw list of lang directories
1073     $langdirs = get_list_of_plugins('install/lang');
1074     asort($langdirs);
1075 /// Get some info from each lang
1076     foreach ($langdirs as $lang) {
1077         if (file_exists($CFG->dirroot .'/install/lang/'. $lang .'/installer.php')) {
1078             include($CFG->dirroot .'/install/lang/'. $lang .'/installer.php');
1079             if (substr($lang, -5) == '_utf8') {   //Remove the _utf8 suffix from the lang to show
1080                 $shortlang = substr($lang, 0, -5);
1081             } else {
1082                 $shortlang = $lang;
1083             }
1084             if ($lang == 'en') {  //Explain this is non-utf8 en
1085                 $shortlang = 'non-utf8 en';
1086             }
1087             if (!empty($string['thislanguage'])) {
1088                 $languages[$lang] = $string['thislanguage'] .' ('. $shortlang .')';
1089             }
1090             unset($string);
1091         }
1092     }
1093 /// Return array
1094     return $languages;
1095 }
1096
1097 //==========================================================================//
1098
1099 function css_styles() {
1100 ?>
1101
1102 <style type="text/css">
1103
1104     body { background-color: #ffeece; }
1105     p, li, td {
1106         font-family: helvetica, arial, sans-serif;
1107         font-size: 10pt;
1108     }
1109     a { text-decoration: none; color: blue; }
1110     a img {
1111         border: none;
1112     }
1113     .errormsg {
1114         color: red;
1115         font-weight: bold;
1116     }
1117     blockquote {
1118         font-family: courier, monospace;
1119         font-size: 10pt;
1120     }
1121     .install_table {
1122         width: 500px;
1123     }
1124     .td_left {
1125         text-align: <?php echo fix_align_rtl("right") ?>;
1126         font-weight: bold;
1127     }
1128     .td_right {
1129         text-align: <?php echo fix_align_rtl("left") ?>;
1130     }
1131     .main {
1132         width: 500px;
1133         border-width: 1px;
1134         border-style: solid;
1135         border-color: #ffc85f;
1136         -moz-border-radius-bottomleft: 15px;
1137         -moz-border-radius-bottomright: 15px;
1138     }
1139     .td_mainheading {
1140         background-color: #fee6b9;
1141         padding: 10px;
1142     }
1143     .td_main {
1144         text-align: center;
1145     }
1146     .td_mainlogo {
1147     }
1148     .p_mainlogo {
1149     }
1150     .p_mainheading {
1151         font-size: 11pt;
1152     }
1153     .p_subheading {
1154         font-size: 10pt;
1155         padding: 10px;
1156     }
1157     .p_mainheader{
1158         text-align: right;
1159         font-size: 20pt;
1160         font-weight: bold;
1161     }
1162     .p_pass {
1163         color: green;
1164         font-weight: bold;
1165     }
1166     .p_fail {
1167         color: red;
1168         font-weight: bold;
1169     }
1170     .p_caution {
1171         color: #ff6600;
1172         font-weight: bold;
1173     }
1174     .p_help {
1175         text-align: center;
1176         font-family: helvetica, arial, sans-serif;
1177         font-size: 14pt;
1178         font-weight: bold;
1179         color: #333333;
1180     }
1181     .environmenttable {
1182         font-size: 10pt;
1183         border-color: #ffc85f;
1184     }
1185     table.environmenttable .error {
1186         background-color : red;
1187         color : inherit;
1188     }
1189
1190     table.environmenttable .warn {
1191         background-color : yellow;
1192     }
1193
1194     table.environmenttable .ok {
1195         background-color : lightgreen;
1196     }
1197     .header {
1198         background-color: #fee6b9;
1199         font-size: 10pt;
1200     }
1201     .cell {
1202         background-color: #ffeece;
1203         font-size: 10pt;
1204     }
1205     .error {
1206         color: #ff0000;
1207     }
1208     .errorboxcontent {
1209         text-align: center;
1210         font-weight: bold;
1211         padding: 20px;
1212         color: #ff0000;
1213     }
1214     .invisiblefieldset {
1215       display:inline;
1216       border:0px;
1217       padding:0px;
1218       margin:0px;
1219     }
1220     #mysql, #mysqli, #postgres7, #mssql, #mssql_n, #odbc_mssql, #oci8po {
1221         display: none;
1222     }
1223
1224 </style>
1225
1226 <?php
1227 }
1228
1229 //==========================================================================//
1230
1231 function database_js() {
1232 ?>
1233
1234 <script type="text/javascript" defer="defer">
1235 function toggledbinfo() {
1236     //Calculate selected value
1237     var showid = 'mysql';
1238     if (document.getElementById('installform').dbtype.value) {
1239         showid = document.getElementById('installform').dbtype.value;
1240     }
1241     if (document.getElementById) {
1242         //Hide all the divs
1243         document.getElementById('mysql').style.display = '';
1244         document.getElementById('mysqli').style.display = '';
1245         document.getElementById('postgres7').style.display = '';
1246         document.getElementById('mssql').style.display = '';
1247         document.getElementById('mssql_n').style.display = '';
1248         document.getElementById('odbc_mssql').style.display = '';
1249         document.getElementById('oci8po').style.display = '';
1250         //Show the selected div
1251         document.getElementById(showid).style.display = 'block';
1252     } else if (document.all) {
1253         //This is the way old msie versions work
1254         //Hide all the divs
1255         document.all['mysql'].style.display = '';
1256         document.all['mysqli'].style.display = '';
1257         document.all['postgres7'].style.display = '';
1258         document.all['mssql'].style.display = '';
1259         document.all['mssql_n'].style.display = '';
1260         document.all['odbc_mssql'].style.display = '';
1261         document.all['oci8po'].style.display = '';
1262         //Show the selected div
1263         document.all[showid].style.display = 'block';
1264     } else if (document.layers) {
1265         //This is the way nn4 works
1266         //Hide all the divs
1267         document.layers['mysql'].style.display = '';
1268         document.layers['mysqli'].style.display = '';
1269         document.layers['postgres7'].style.display = '';
1270         document.layers['mssql'].style.display = '';
1271         document.layers['mssql_n'].style.display = '';
1272         document.layers['odbc_mssql'].style.display = '';
1273         document.layers['oci8po'].style.display = '';
1274         //Show the selected div
1275         document.layers[showid].style.display = 'block';
1276     }
1277 }
1278 </script>
1279
1280 <?php
1281 }
1282 ?>