3v4l.org

run code in 500+ PHP versions simultaneously
<?php echo("null == 0 is " . ((null == 0) ? 'true' : 'false') . "\n"); echo("null === 0 is " . ((null === 0) ? 'true' : 'false') . "\n"); echo("false == 0 is " . ((false == 0) ? 'true' : 'false') . "\n"); echo("false === 0 is " . ((false === 0) ? 'true' : 'false') . "\n"); echo("null == false is " . ((null == false) ? 'true' : 'false') . "\n"); echo("null === false is " . ((null === false) ? 'true' : 'false') . "\n"); echo("null < -1 is " . ((null < -1) ? 'true' : 'false') . "\n");
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 - 5.6.40, 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 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
null == 0 is true null === 0 is false false == 0 is true false === 0 is false null == false is true null === false is false null < -1 is true
preferences:
119.19 ms | 2743 KiB | 4 Q