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