3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r [1,2,3,4,[1,2,4]];
Output for 5.3.0 - 5.3.14, 5.4.0 - 5.4.4
Parse error: syntax error, unexpected '[' in icXhP on line 1
Process exited with code 255.
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168.43 ms | 1395 KiB | 27 Q