3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "0.0000"; var_dump( $a === 0, $a == 0 && is_float($a), floatval($a) == 0 );
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
bool(false) bool(false) bool(true)
preferences:
235.3 ms | 404 KiB | 376 Q