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run code in 300+ PHP versions simultaneously
<?php trait Foo { public $hidden; function __call($name, $arguments) { echo 'hello from overload'; } } class Bar { function hello() { echo 'hello from bar'; } } function deleteMe(&$obj) { debug_zval_dump($obj); unset($obj); debug_zval_dump($obj); } $foo = new Bar(); deleteMe($foo); gc_collect_cycles(); $foo->hello();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
object(Bar)#1 (0) refcount(2){ } Warning: Undefined variable $obj in /in/5Mj3W on line 29 NULL hello from bar
Output for 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 - 7.4.33
object(Bar)#1 (0) refcount(2){ } Notice: Undefined variable: obj in /in/5Mj3W on line 29 NULL hello from bar
Output for 7.3.32 - 7.3.33
object(Bar)#1 (0) refcount(2){ } NULL hello from bar
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
object(Bar)#1 (0) refcount(1){ } Notice: Undefined variable: obj in /in/5Mj3W on line 29 NULL refcount(1) hello from bar
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/5Mj3W on line 4
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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/5Mj3W on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/5Mj3W on line 4
Process exited with code 255.

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