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run code in 300+ PHP versions simultaneously
<?php class Foo { private $count; public function __construct() { $this->count = 1; } public function addCount() { $this->count++; } } class Bar { private $foo; private $array; public function __construct() { $this->foo = new Foo; $this->array = array(1, 2, 3); } public function getFoo() { return $this->foo; } public function getArray() { return $this->array; } } $bar = new Bar; $foo = $bar->getFoo(); $array = $bar->getArray(); var_dump($bar->getFoo()); print '<br>'; var_dump($foo); print '<br>'; var_dump($bar->getArray()); print '<br>'; var_dump($array); print '<br>'; $foo->addCount(); $array[] = 4; var_dump($bar->getFoo()); print '<br>'; var_dump($foo); print '<br>'; var_dump($bar->getArray()); print '<br>'; var_dump($array); print '<br>';
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
object(Foo)#2 (1) { ["count":"Foo":private]=> int(1) } <br>object(Foo)#2 (1) { ["count":"Foo":private]=> int(1) } <br>array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } <br>array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } <br>object(Foo)#2 (1) { ["count":"Foo":private]=> int(2) } <br>object(Foo)#2 (1) { ["count":"Foo":private]=> int(2) } <br>array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } <br>array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) } <br>
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
object(Foo)#2 (1) { ["count:private"]=> int(1) } <br>object(Foo)#2 (1) { ["count:private"]=> int(1) } <br>array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } <br>array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } <br>object(Foo)#2 (1) { ["count:private"]=> int(2) } <br>object(Foo)#2 (1) { ["count:private"]=> int(2) } <br>array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } <br>array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) } <br>
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/dY7rl on line 5
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 T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/dY7rl on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/dY7rl on line 5
Process exited with code 255.

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