hphp/test/zend/good/ext-standard-array/uasort_variation7.php

   1 <?php
   2 /* Prototype  : bool uasort(array $array_arg, string $cmp_function)
   3  * Description: Sort an array with a user-defined comparison function and maintain index association
   4  * Source code: ext/standard/array.c
   5 */
   6
   7 /*
   8 * Passing different anonymous functions as 'cmp_function'
   9 *   arguments passed by value
  10 *   arguments passed by reference
  11 */
  12
  13 echo "*** Testing uasort() : anonymous function as 'cmp_function' ***\n";
  14
  15 $cmp_function = 'if($value1 == $value2) {return 0;} else if($value1 > $value2) {return 1;} else{return -1;}';
  16
  17 $array_arg = array(0 => 100, 1 => 3, 2 => -70, 3 => 24, 4 => 90);
  18 echo "-- Anonymous 'cmp_function' with parameters passed by value --\n";
  19 var_dump( uasort($array_arg, create_function('$value1, $value2',$cmp_function) ) );
  20 var_dump($array_arg);
  21
  22 $array_arg = array("b" => "Banana", "m" => "Mango", "a" => "Apple", "p" => "Pineapple");
  23 echo "-- Anonymous 'cmp_function' with parameters passed by reference --\n";
  24 var_dump( uasort($array_arg, create_function('&$value1, &$value2', $cmp_function) ) );
  25 var_dump($array_arg);
  26
  27 echo "Done"
  28 ?>