3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2); $b = array(3) var_dump(array_merge($a,$b));
Output for 5.4.0 - 5.4.15
Parse error: syntax error, unexpected 'var_dump' (T_STRING) in /in/h0K2W on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.25
Parse error: syntax error, unexpected T_STRING in /in/h0K2W on line 4
Process exited with code 255.
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174.89 ms | 1395 KiB | 49 Q