3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a="PHP"; $b="SUN"; echo $a; echo $b; echo $a <=> $b; ?>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
PHPSUN-1
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Parse error: syntax error, unexpected '>' in /in/OfT94 on line 6
Process exited with code 255.
preferences:
160.85 ms | 402 KiB | 183 Q