hphp/test/zend/good/ext-standard-array/array_diff_ukey_variation9.php

   1 <?php
   2 /* Prototype  : array array_diff_ukey(array arr1, array arr2 [, array ...], callback key_comp_func)
   3  * Description: Returns the entries of arr1 that have keys which are not present in any of the others arguments.
   4  * Source code: ext/standard/array.c
   5  */
   6
   7 echo "*** Testing array_diff_ukey() : usage variation ***\n";
   8
   9 // Initialise function arguments not being substituted (if any)
  10 $input_array = array(10 => '10', "" => 'empty');
  11
  12 //get an unset variable
  13 $unset_var = 10;
  14 unset ($unset_var);
  15
  16 $input_arrays = array(
  17       'null indexed' => array(NULL => 'null 1', null => 'null 2'),
  18       'undefined indexed' => array(@$undefined_var => 'undefined'),
  19       'unset  indexed' => array(@$unset_var => 'unset'),
  20 );
  21
  22 foreach($input_arrays as $key =>$value) {
  23       echo "\n--$key--\n";
  24       var_dump( array_diff_ukey($value, $input_array, 'strcasecmp') );
  25       var_dump( array_diff_ukey($input_array, $value, 'strcasecmp') );
  26 }
  27
  28 ?>
  29 ===DONE===