3v4l.org

run code in 300+ PHP versions simultaneously
<?php function mutabledefault($arg=$foo) { var_dump($arg); } $foo = 1; mutabledefault(); $foo = 2; mutabledefault();
Output for 5.4.0 - 5.4.28
Parse error: syntax error, unexpected '$foo' (T_VARIABLE) in /in/kXFXS on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_VARIABLE in /in/kXFXS on line 3
Process exited with code 255.
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