3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 2a0; for($i = 0; $i < 50; $i++) { print "$a\n"; $a++; }
Output for 5.4.0 - 5.4.28
Parse error: syntax error, unexpected 'a0' (T_STRING) in /in/sTleF on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING in /in/sTleF on line 3
Process exited with code 255.
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181.83 ms | 1395 KiB | 65 Q