3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '1'; if(strlen($str == 1) { $str = '0'.$str; } echo $str; ?>
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.31
Parse error: syntax error, unexpected '{' in /in/MHSkC on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '{' in /in/MHSkC on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/MHSkC on line 4
Process exited with code 255.
preferences:
207.99 ms | 1395 KiB | 122 Q