3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 5; $b = 10; function mytest() { global $a, $b; $b = $a + $b } mytest(); echo $b; ?>
Output for 5.3.0 - 5.3.18, 5.4.0 - 5.4.8
Parse error: syntax error, unexpected '}' in /in/nvvB1 on line 9
Process exited with code 255.
preferences:
168.46 ms | 1395 KiB | 35 Q