3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 4; $b = 9; var_dump( strcmp($a, $b), $a <=> $b );
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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
int(-5) int(-1)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '>' in /in/vMvK1 on line 8
Process exited with code 255.
preferences:
264.61 ms | 402 KiB | 335 Q