3v4l.org

run code in 300+ PHP versions simultaneously
<?php isset($a, $b++, $c, $d);
Output for 5.4.20
Parse error: syntax error, unexpected '++' (T_INC), expecting ',' or ')' in /in/4vYMZ on line 4
Process exited with code 255.
Output for 5.4.0 - 5.4.19
Parse error: syntax error, unexpected '++' (T_INC), expecting ',' or ')' in /in/TKd0d on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_INC, expecting ',' or ')' in /in/TKd0d on line 4
Process exited with code 255.
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181.91 ms | 1395 KiB | 56 Q