3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = function ($instance) { return $instance->x; }; class FooBar { public $x = 3; } $foobar = new FooBar; for ($i = 0; $i < 100000; $i++) { $x = function () use ($foobar, $a) [ return $a($foobar); }; $x(); }
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.31
Parse error: syntax error, unexpected '[', expecting '{' in /in/LpZEg on line 12
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/LpZEg 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_FUNCTION in /in/LpZEg on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/LpZEg on line 4
Process exited with code 255.
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224.13 ms | 1395 KiB | 121 Q