3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = str_replace('/\','','\/\/') echo $a; ?>
Output for 7.0.0
Parse error: syntax error, unexpected '','' (T_CONSTANT_ENCAPSED_STRING), expecting ',' or ')' in /in/4EXeR on line 3
Process exited with code 255.
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16
Parse error: syntax error, unexpected '','' (T_CONSTANT_ENCAPSED_STRING) in /in/4EXeR on line 3
Process exited with code 255.

preferences:
167.87 ms | 1395 KiB | 24 Q