3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(array(100000000000000000000=>0));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Implicit conversion from float 1.0E+20 to int loses precision in /in/3O7tA on line 2 array(1) { [7766279631452241920]=> int(0) }
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 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
array(1) { [7766279631452241920]=> int(0) }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
array(1) { [0]=> int(0) }
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
array(1) { [-9223372036854775808]=> int(0) }

preferences:
277.97 ms | 402 KiB | 386 Q