3v4l.org

run code in 300+ PHP versions simultaneously
<?php const echo true; echo echo;
Output for 5.4.0 - 5.4.24
Parse error: syntax error, unexpected 'echo' (T_ECHO), expecting identifier (T_STRING) in /in/7C3mX on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_ECHO, expecting T_STRING in /in/7C3mX on line 2
Process exited with code 255.
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178.51 ms | 1399 KiB | 61 Q