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<?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 8.0.0alpha1 - beta3
NULL NULL Notice: Constant NULL already defined in /in/Lp400 on line 5 NULL NULL Notice: 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 - 7.3.21, 7.4.0 - 7.4.10
NULL NULL NULL NULL Notice: Constant null already defined in /in/Lp400 on line 8
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