3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('$', function($input) { $output = $input; // do something here return $output; } $n = $(123);
Output for 5.4.0 - 5.4.27, 5.5.0 - 5.5.11
Parse error: syntax error, unexpected '$n' (T_VARIABLE) in /in/HpjvK on line 10
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_VARIABLE in /in/HpjvK on line 10
Process exited with code 255.
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189.29 ms | 1394 KiB | 76 Q