3v4l.org

run code in 300+ PHP versions simultaneously
<?php if ((isset ($a)){ echo "yeah"; } else { echo "nay"; } ?>
Output for 7.0.0 - 7.0.1
Parse error: syntax error, unexpected 'echo' (T_ECHO) in /in/4CJMX on line 4
Process exited with code 255.
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16
Parse error: syntax error, unexpected '{' in /in/4CJMX on line 3
Process exited with code 255.
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174.93 ms | 1399 KiB | 25 Q