<?php
var_dump(null); // null
var_dump(NULL); // null
define("NULL","hello world");
var_dump(null); // null
var_dump(NULL); // hello world
define("null","hello world"); //Notice: Constant null already defined
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
- NULL
NULL
Warning: Constant NULL already defined in /in/Lp400 on line 5
NULL
NULL
Warning: Constant null already defined in /in/Lp400 on line 8
- Output for 5.1.3 - 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 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
- NULL
NULL
NULL
NULL
Notice: Constant null already defined in /in/Lp400 on line 8
- Output for 7.3.32 - 7.3.33
- NULL
NULL
NULL
NULL
- Output for 4.3.0 - 4.3.6, 4.3.9 - 4.3.11, 4.4.0 - 4.4.9, 5.0.1 - 5.0.5, 5.1.1 - 5.1.2
- NULL
NULL
NULL
string(11) "hello world"
Notice: Constant null already defined in /in/Lp400 on line 8
- Output for 5.1.0
- Fatal error: fatal flex scanner internal error--end of buffer missed in /in/Lp400 on line 8
Process exited with code 255. - Output for 4.3.7 - 4.3.8, 5.0.0
- NULL
NULL
NULL
string(11) "hello world"
Notice: Constant already defined in /in/Lp400 on line 8
preferences:
48.83 ms | 412 KiB | 5 Q