3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(array( '9223372036854775807' => 'foo', '9223372036854775808' => 'bar', ));
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.3.16, 8.4.1 - 8.4.3
array(2) { [9223372036854775807]=> string(3) "foo" ["9223372036854775808"]=> string(3) "bar" }
preferences:
141.42 ms | 408 KiB | 5 Q