3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 10; while(($x+1) --> 0) echo "$x\n";
Output for 5.4.16
Parse error: syntax error, unexpected '--' (T_DEC) in /in/t5QX8 on line 3
Process exited with code 255.
Output for 5.4.0 - 5.4.15
Parse error: syntax error, unexpected '--' (T_DEC) in H3Keo on line 3
Process exited with code 255.
Output for 5.3.25 - 5.3.26
Parse error: syntax error, unexpected T_DEC in /in/t5QX8 on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.24
Parse error: syntax error, unexpected T_DEC in H3Keo on line 3
Process exited with code 255.

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