3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare strict; function f(int $foo) { var_dump($foo); } f(1); f(1.5); f("10"); f("10gaklj");
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16, 7.0.0
Parse error: syntax error, unexpected 'strict' (T_STRING), expecting '(' in /in/kLBHX on line 2
Process exited with code 255.
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166.41 ms | 1399 KiB | 24 Q