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<?php define('NULL', 1); var_dump(NULL, is_null(NULL)); define('TRUE', 100); var_dump(TRUE, TRUE === true);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Constant NULL already defined in /in/kliL5 on line 2 NULL bool(true) Warning: Constant TRUE already defined in /in/kliL5 on line 4 bool(true) bool(true)

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