3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_export(array_filter(["a", "b"], function ($v) { return false})_;
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected '}' in /in/cb0m2 on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[', expecting ')' in /in/cb0m2 on line 3
Process exited with code 255.
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184.44 ms | 1395 KiB | 67 Q