3v4l.org

run code in 300+ PHP versions simultaneously
<?php // true: var_dump("1799999999999999999" == "1799999999999999999.0"); // false on PHP 5.6, true on PHP 5.2 (64bit): var_dump("17999999999999999990" == "17999999999999999990.0"); ?>
Output for 5.4.4 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
bool(true) bool(false)
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 - 5.4.3
bool(true) bool(true)
preferences:
225.71 ms | 403 KiB | 340 Q