3v4l.org

run code in 300+ PHP versions simultaneously
<?php function add(){var_dump(func_get_arg(3));} add(&1);
Output for 5.4.0 - 5.4.20
Parse error: syntax error, unexpected '1' (T_LNUMBER) in /in/5EJAW on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_LNUMBER in /in/5EJAW on line 2
Process exited with code 255.
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173.99 ms | 1395 KiB | 56 Q