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<?php foreach(array('T_FINALLY', 'T_INSTEADOF', 'T_TRAIT', 'T_TRAIT_C', 'T_YIELD') as $c) { echo $c, ': '; if(defined($c)) var_dump($c); else var_dump(-1); }
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
T_FINALLY: string(9) "T_FINALLY" T_INSTEADOF: string(11) "T_INSTEADOF" T_TRAIT: string(7) "T_TRAIT" T_TRAIT_C: string(9) "T_TRAIT_C" T_YIELD: string(7) "T_YIELD"
Output for 5.4.0 - 5.4.45
T_FINALLY: int(-1) T_INSTEADOF: string(11) "T_INSTEADOF" T_TRAIT: string(7) "T_TRAIT" T_TRAIT_C: string(9) "T_TRAIT_C" T_YIELD: int(-1)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
T_FINALLY: int(-1) T_INSTEADOF: int(-1) T_TRAIT: int(-1) T_TRAIT_C: int(-1) T_YIELD: int(-1)

preferences:
258.66 ms | 403 KiB | 425 Q