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<?php define('TRUE', false); define('true', false); define('TRue', false); var_dump(TRUE, true, TRue);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Constant TRUE already defined in /in/mLfnC on line 2 Warning: Constant true already defined in /in/mLfnC on line 3 Warning: Constant TRue already defined in /in/mLfnC on line 4 bool(true) bool(true) bool(true)

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