3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyIterator implements Iterator { public $var = array(1,2,3); public function __construct($array) { $var = array(1,2,3); if (is_array($array)) { $this->var = $array; } } public function rewind() { echo "rewinding\n"; reset($this->var); } public function current() { $var = current($this->var); echo "current: $var\n"; return $var; } public function key() { $var = key($this->var); echo "key: $var\n"; return $var; } public function next() { $var = next($this->var); echo "next: $var\n"; return $var; } public function valid() { $key = key($this->var); $var = ($key !== NULL && $key !== FALSE); echo "valid: $var\n"; return $var; } } class MyCollection implements IteratorAggregate { private $count = 0; /* public function __construct($array) { $var = array(1,2,3); if (is_array($array)) { $this->var = $array; } } */ // Required definition of interface IteratorAggregate public function getIterator() { return new MyIterator($this->var); } /* public function add($value) { $this->var[$this->count++] = $value; }*/ } /*$values = array('value 1','value 2','value 3');*/ $coll = new Mycollection(); foreach ($coll as $key => $val) { echo "key/value: [$key -> $val]\n\n"; } ?>
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of MyIterator::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/IVM23 on line 19 Deprecated: Return type of MyIterator::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/IVM23 on line 35 Deprecated: Return type of MyIterator::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/IVM23 on line 28 Deprecated: Return type of MyIterator::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/IVM23 on line 41 Deprecated: Return type of MyIterator::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/IVM23 on line 13 Deprecated: Return type of MyCollection::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/IVM23 on line 64 Warning: Undefined property: MyCollection::$var in /in/IVM23 on line 66 rewinding valid: 1 current: 1 key: 0 key/value: [0 -> 1] next: 2 valid: 1 current: 2 key: 1 key/value: [1 -> 2] next: 3 valid: 1 current: 3 key: 2 key/value: [2 -> 3] next: valid:
Output for 8.0.0 - 8.0.30
Warning: Undefined property: MyCollection::$var in /in/IVM23 on line 66 rewinding valid: 1 current: 1 key: 0 key/value: [0 -> 1] next: 2 valid: 1 current: 2 key: 1 key/value: [1 -> 2] next: 3 valid: 1 current: 3 key: 2 key/value: [2 -> 3] next: valid:
Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined property: MyCollection::$var in /in/IVM23 on line 66 rewinding valid: 1 current: 1 key: 0 key/value: [0 -> 1] next: 2 valid: 1 current: 2 key: 1 key/value: [1 -> 2] next: 3 valid: 1 current: 3 key: 2 key/value: [2 -> 3] next: valid:
Output for 7.3.32 - 7.3.33, 7.4.26
rewinding valid: 1 current: 1 key: 0 key/value: [0 -> 1] next: 2 valid: 1 current: 2 key: 1 key/value: [1 -> 2] next: 3 valid: 1 current: 3 key: 2 key/value: [2 -> 3] next: valid:
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
Notice: Undefined property: MyCollection::$var in /in/IVM23 on line 66 rewinding valid: 1 current: 1 key: 0 key/value: [0 -> 1] next: 2 valid: 1 current: 2 key: 1 key/value: [1 -> 2] next: 3 valid: 1 current: 3 key: 2 key/value: [2 -> 3] next: valid:
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/IVM23 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/IVM23 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/IVM23 on line 2
Process exited with code 255.
preferences:
257.74 ms | 401 KiB | 389 Q