3v4l.org

run code in 300+ PHP versions simultaneously
<?php $needsVersion = '5.2'; $versions = ['5', '5.x', '5.1', '5.2', '5.2-dev', '5.2.0', '5.2.1', '5.3']; foreach ($versions as $version) { if (version_compare($version, $needsVersion, '>=')) { echo "{$version} >= $needsVersion\n"; } else { echo "{$version} < $needsVersion\n"; } }
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
5 < 5.2 5.x < 5.2 5.1 < 5.2 5.2 >= 5.2 5.2-dev < 5.2 5.2.0 >= 5.2 5.2.1 >= 5.2 5.3 >= 5.2
preferences:
42.98 ms | 408 KiB | 5 Q