3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Twelve {} class_alias('Twelve', '12'); $twelve = '12'; $twelveObj = new '12';
Output for 5.4.0 - 5.4.17
Parse error: syntax error, unexpected ''12'' (T_CONSTANT_ENCAPSED_STRING) in /in/qv1QD on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.26
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/qv1QD on line 6
Process exited with code 255.
preferences:
172.62 ms | 1395 KiB | 52 Q