hphp/test/quick/rename_dynamic.php

   1 <?php
   2
   3 function bungle($s) {
   4   return 314159;
   5 }
   6
   7 function prefix() {
   8   return "__rename_func_";
   9 }
  10
  11 $stub_name = prefix() . 'strtoupper';
  12
  13 var_dump(strtoupper('tweet'));
  14 fb_rename_function('strtoupper', $stub_name);
  15 fb_rename_function('bungle', 'strtoupper');
  16 var_dump(strtoupper('tweet'));
  17
  18 // release stringdata
  19 unset($stub_name);
  20
  21 // try to allocate something in that memory
  22 $stub_name = prefix() . 'hagfish';
  23
  24 $stub_name = prefix() . 'strtoupper';
  25 fb_rename_function('strtoupper', 'bungle');
  26 fb_rename_function($stub_name, 'strtoupper');
  27 var_dump(strtoupper('tweet'));