3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('CLASS', 'foobar'); echo CLASS;
Output for 5.4.0 - 5.4.8
Parse error: syntax error, unexpected 'CLASS' (T_CLASS) in iXYch on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.18
Parse error: syntax error, unexpected T_CLASS in iXYch on line 3
Process exited with code 255.
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176.64 ms | 1395 KiB | 35 Q