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<?php define('true',false,true); $k = true; var_dump($k); $a = 0; var_dump('' == $a and 'a' == $a and '' === (string)$a and 'a' === (string)$a);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: define(): Argument #3 ($case_insensitive) is ignored since declaration of case-insensitive constants is no longer supported in /in/LFbHo on line 2 Warning: Constant true already defined in /in/LFbHo on line 2 bool(true) bool(false)
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: define(): Declaration of case-insensitive constants is deprecated in /in/LFbHo on line 2 Notice: Constant true already defined in /in/LFbHo on line 2 bool(true) bool(false)
Output for 7.3.32 - 7.3.33
bool(true) bool(false)
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Notice: Constant true already defined in /in/LFbHo on line 2 bool(true) bool(false)

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