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  1. <?php
  2. class IteratorTest implements ArrayAccess, Iterator {
  3.   private $pointer = 0;
  4.   private $objects = array();
  5.  
  6.   public function offsetExists($index) {
  7.     return isset($this->objects[$index]);
  8.   }
  9.  
  10.   public function offsetGet($index) {
  11.     return $this->objects[$index];
  12.   }
  13.  
  14.   public function offsetSet($index, $newValue) {
  15.     $this->objects[$index] = $newValue;
  16.   }
  17.  
  18.   public function offsetUnset($index) {
  19.     unset($this->objects[$index]);
  20.   }
  21.  
  22.   public function key() {
  23.     return key($this->objects);
  24.   }
  25.  
  26.   public function current() {
  27.     return current($this->objects);
  28.   }
  29.  
  30.   public function next() {
  31.     next($this->objects);
  32.   }
  33.  
  34.   public function rewind() {
  35.     reset($this->objects);
  36.   }
  37.  
  38.   public function valid() {
  39.     return current($this->objects);
  40.   }
  41. }
  42.  
  43. $it = new IteratorTest();
  44.  
  45. $it['one'] = 1;
  46. $it['two'] = 2;
  47.  
  48. foreach ($it as $k => $v) {
  49.   echo "$k: $v\n";
  50. }
  51.  
  52. // expected result:
  53. // one: 1
  54. // two: 2
Success #stdin #stdout 0.02s 13112KB
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stdin
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Standard input is empty
stdout
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one: 1
two: 2
https://ideone.com/rZjim
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
public

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