3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 5; echo ++$a . ($b = &$a, $a++);
Output for 5.3.26, 5.4.16
Parse error: syntax error, unexpected ',' in /in/42UoL on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.24, 5.4.0 - 5.4.15
Parse error: syntax error, unexpected ',' in u4Knv on line 3
Process exited with code 255.
Output for 5.3.25
Parse error: syntax error, unexpected ',' in /in/u4Knv on line 3
Process exited with code 255.
preferences:
178.43 ms | 1395 KiB | 51 Q