maintenance/benchmarks/bench_if_switch.php

   1 <?php
   2 /**
   3  * Benchmark if elseif... versus switch case.
   4  *
   5  * This come from r75429 message
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  * http://www.gnu.org/copyleft/gpl.html
  21  *
  22  * @file
  23  * @ingroup Benchmark
  24  * @author  Platonides
  25  */
  26
  27 require_once __DIR__ . '/Benchmarker.php';
  28
  29 /**
  30  * Maintenance script that benchmark if elseif... versus switch case.
  31  *
  32  * @ingroup Maintenance
  33  */
  34 class BenchIfSwitch extends Benchmarker {
  35         public function __construct() {
  36                 parent::__construct();
  37                 $this->addDescription( 'Benchmark if elseif... versus switch case.' );
  38         }
  39
  40         public function execute() {
  41                 $this->bench( [
  42                         [ 'function' => [ $this, 'doElseIf' ] ],
  43                         [ 'function' => [ $this, 'doSwitch' ] ],
  44                 ] );
  45                 print $this->getFormattedResults();
  46         }
  47
  48         // bench function 1
  49         function doElseIf() {
  50                 $a = 'z';
  51                 if ( $a == 'a' ) {
  52                 } elseif ( $a == 'b' ) {
  53                 } elseif ( $a == 'c' ) {
  54                 } elseif ( $a == 'd' ) {
  55                 } elseif ( $a == 'e' ) {
  56                 } elseif ( $a == 'f' ) {
  57                 } elseif ( $a == 'g' ) {
  58                 } elseif ( $a == 'h' ) {
  59                 } elseif ( $a == 'i' ) {
  60                 } elseif ( $a == 'j' ) {
  61                 } elseif ( $a == 'k' ) {
  62                 } elseif ( $a == 'l' ) {
  63                 } elseif ( $a == 'm' ) {
  64                 } elseif ( $a == 'n' ) {
  65                 } elseif ( $a == 'o' ) {
  66                 } elseif ( $a == 'p' ) {
  67                 } else {
  68                 }
  69         }
  70
  71         // bench function 2
  72         function doSwitch() {
  73                 $a = 'z';
  74                 switch ( $a ) {
  75                         case 'b':
  76                                 break;
  77                         case 'c':
  78                                 break;
  79                         case 'd':
  80                                 break;
  81                         case 'e':
  82                                 break;
  83                         case 'f':
  84                                 break;
  85                         case 'g':
  86                                 break;
  87                         case 'h':
  88                                 break;
  89                         case 'i':
  90                                 break;
  91                         case 'j':
  92                                 break;
  93                         case 'k':
  94                                 break;
  95                         case 'l':
  96                                 break;
  97                         case 'm':
  98                                 break;
  99                         case 'n':
 100                                 break;
 101                         case 'o':
 102                                 break;
 103                         case 'p':
 104                                 break;
 105                         default:
 106                 }
 107         }
 108 }
 109
 110 $maintClass = 'BenchIfSwitch';
 111 require_once RUN_MAINTENANCE_IF_MAIN;