3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = function($f) { $f(1); } $block = function($params) { echo 'test'; }; $test($block);
Output for 5.4.0 - 5.4.24
Parse error: syntax error, unexpected '$block' (T_VARIABLE) in /in/FUO6u on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_VARIABLE in /in/FUO6u on line 6
Process exited with code 255.
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169.18 ms | 1399 KiB | 61 Q