3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "\0"; for ($i = 0; $i < 256; $i++) { echo ++$str; } echo "\n---------------------------\n" $str = "0"; for ($i = 0; $i < 256; $i++) { echo ++$str; }
Output for 5.4.0 - 5.4.21
Parse error: syntax error, unexpected '$str' (T_VARIABLE), expecting ',' or ';' in /in/E9LKh on line 10
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_VARIABLE, expecting ',' or ';' in /in/E9LKh on line 10
Process exited with code 255.
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191.66 ms | 1395 KiB | 57 Q