3v4l.org

run code in 300+ PHP versions simultaneously
<?php $archiveName = time(); echo $archiveName - (60*60); die; $archivePath = substr($archiveName, 0, 6); $archivePath .= DIRECTORY_SEPARATOR . $archiveName; echo $archiveName . PHP_EOL; echo $archivePath;
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.25, 7.3.0 - 7.3.12, 7.4.0
1375850185
preferences:
203.9 ms | 404 KiB | 317 Q