3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Insta-kill interface BrokenInterface { // this can be anything... even null. just with a non-existent key public const ARRAY_1 = []; public const ARRAY_2 = [ self::ARRAY_1["nonExistentKey"] ]; } class UseThisClass implements BrokenInterface {} (new UseThisClass());
Output for 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Warning: Undefined array key "nonExistentKey" in /in/Mnk96 on line 9
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29
Warning: Undefined array key "nonExistentKey" in /in/Mnk96 on line 13
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: nonExistentKey in /in/Mnk96 on line 13
Output for 7.3.32 - 7.3.33
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
Parse error: syntax error, unexpected 'const' (T_CONST), expecting variable (T_VARIABLE) in /in/Mnk96 on line 6
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CONST, expecting T_VARIABLE in /in/Mnk96 on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONST, expecting T_VARIABLE in /in/Mnk96 on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/Mnk96 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/Mnk96 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Mnk96 on line 4
Process exited with code 255.
preferences:
165.35 ms | 418 KiB | 5 Q