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<?php define('TRUE', false); if (TRUE) { echo "TRUE"; } else { echo "FALSE!!!"; }
Output for 8.0.0alpha1 - alpha2
Notice: Constant TRUE already defined in /in/D1p4k on line 2 TRUE
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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.31, 7.3.0 - 7.3.19, 7.4.0 - 7.4.8
TRUE
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.2
FALSE!!!