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<?php define('ANIMALS', [ 'dog', 'cat', 'bird' ]); echo ANIMALS[1]; // outputs "cat"
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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
cat
Output for 5.6.0 - 5.6.40
Warning: Constants may only evaluate to scalar values in /in/8UtaA on line 6 Notice: Use of undefined constant ANIMALS - assumed 'ANIMALS' in /in/8UtaA on line 8 N
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Parse error: syntax error, unexpected '[', expecting ',' or ';' in /in/8UtaA on line 8
Process exited with code 255.
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