hphp/test/zend/bad/tests/lang/foreachLoop.014.php

   1 <?php
   2
   3 define('MAX_LOOPS',5);
   4
   5 function withRefValue($elements, $transform) {
   6         echo "\n---( Array with $elements element(s): )---\n";
   7         //Build array:
   8         for ($i=0; $i<$elements; $i++) {
   9                 $a[] = "v.$i";
  10         }
  11         $counter=0;
  12
  13         $ref = &$a;
  14
  15         echo "--> State of referenced array before loop:\n";
  16         var_dump($a);
  17
  18         echo "--> Do loop:\n";
  19         foreach ($a as $k=>$v) {
  20                 echo "     iteration $counter:  \$k=$k; \$v=$v\n";
  21                 eval($transform);
  22                 $counter++;
  23                 if ($counter>MAX_LOOPS) {
  24                         echo "  ** Stuck in a loop! **\n";
  25                         break;
  26                 }
  27         }
  28
  29         echo "--> State of array after loop:\n";
  30         var_dump($a);
  31 }
  32
  33
  34 echo "\nPopping elements off end of a referenced array";
  35 $transform = 'array_pop($a);';
  36 withRefValue(1, $transform);
  37 withRefValue(2, $transform);
  38 withRefValue(3, $transform);
  39 withRefValue(4, $transform);
  40
  41 echo "\n\n\nShift elements off start of a referenced array";
  42 $transform = 'array_shift($a);';
  43 withRefValue(1, $transform);
  44 withRefValue(2, $transform);
  45 withRefValue(3, $transform);
  46 withRefValue(4, $transform);
  47
  48 echo "\n\n\nRemove current element of a referenced array";
  49 $transform = 'unset($a[$k]);';
  50 withRefValue(1, $transform);
  51 withRefValue(2, $transform);
  52 withRefValue(3, $transform);
  53 withRefValue(4, $transform);
  54
  55 echo "\n\n\nAdding elements to the end of a referenced array";
  56 $transform = 'array_push($a, "new.$counter");';
  57 withRefValue(1, $transform);
  58 withRefValue(2, $transform);
  59 withRefValue(3, $transform);
  60 withRefValue(4, $transform);
  61
  62 echo "\n\n\nAdding elements to the start of a referenced array";
  63 $transform = 'array_unshift($a, "new.$counter");';
  64 withRefValue(1, $transform);
  65 withRefValue(2, $transform);
  66 withRefValue(3, $transform);
  67 withRefValue(4, $transform);
  68
  69 ?>