hphp/test/zend/bad/ext-standard-array/usort_error2.php

   1 <?php
   2 /* Prototype  : bool usort(array $array_arg, string $cmp_function)
   3  * Description: Sort an array by values using a user-defined comparison function
   4  * Source code: ext/standard/array.c
   5  */
   6
   7 /*
   8  * Pass an unknown comparison function to usort() to test behaviour.
   9  * Pass incorrect number of arguments and an unknown function to test which error
  10  * is generated.
  11  */
  12
  13 echo "*** Testing usort() : error conditions ***\n";
  14
  15 function cmp($value1, $value2)
  16 {
  17   if($value1 == $value2) {
  18     return 0;
  19   }
  20   else if($value1 > $value2) {
  21     return 1;
  22   }
  23   else {
  24     return -1;
  25   }
  26 }
  27
  28 // Initialize 'array_arg'
  29 $array_arg = array(0 => 1, 1 => 10, 2 => 'string', 3 => 3, 4 => 2, 5 => 100, 6 => 25);
  30 $extra_arg = 10;
  31
  32 // With non existent comparison function
  33 echo "\n-- Testing usort() function with non-existent compare function --\n";
  34 var_dump( usort($array_arg, 'non_existent') );
  35
  36 // With non existent comparison function and extra arguemnt
  37 echo "\n-- Testing usort() function with non-existent compare function and extra argument --\n";
  38 var_dump( usort($array_arg, 'non_existent', $extra_arg) );
  39 ?>
  40 ===DONE===