maintenance/eval.php

   1 <?php
   2 /**
   3  * PHP lacks an interactive mode, but this can be very helpful when debugging.
   4  * This script lets a command-line user start up the wiki engine and then poke
   5  * about by issuing PHP commands directly.
   6  *
   7  * Unlike eg Python, you need to use a 'return' statement explicitly for the
   8  * interactive shell to print out the value of the expression. Multiple lines
   9  * are evaluated separately, so blocks need to be input without a line break.
  10  * Fatal errors such as use of undeclared functions can kill the shell.
  11  *
  12  * To get decent line editing behavior, you should compile PHP with support
  13  * for GNU readline (pass --with-readline to configure).
  14  *
  15  * @package MediaWiki
  16  * @subpackage Maintenance
  17  */
  18
  19 /** */
  20 require_once( "commandLine.inc" );
  21
  22 do {
  23         $line = readconsole( "> " );
  24         $val = eval( $line . ";" );
  25         if( is_null( $val ) ) {
  26                 echo "\n";
  27         } elseif( is_string( $val ) || is_numeric( $val ) ) {
  28                 echo "$val\n";
  29         } else {
  30                 var_dump( $val );
  31         }
  32         if ( function_exists( "readline_add_history" ) ) {
  33                 readline_add_history( $line );
  34         }
  35 } while ( 1 );
  36
  37 ?>