3v4l.org

run code in 300+ PHP versions simultaneously
<?php $flags=JSON_PRETTY_PRINT |JSON_UNESCAPED_UNICODE; var_dump($flags); $flags=JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES |JSON_UNESCAPED_UNICODE; var_dump($flags); $flags&=~JSON_UNESCAPED_SLASHES; var_dump($flags);
Output for 7.1.25 - 7.1.32, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
int(384) int(448) int(384)
preferences:
188.07 ms | 403 KiB | 177 Q