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<?php $arr = array( '', false, null, 0, 0.4, -.1, "\0" ); $arr = array_flip($arr); $arr = array_keys($arr); print_r($arr);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/8qEgr on line 13 Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/8qEgr on line 13 Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/8qEgr on line 13 Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/8qEgr on line 13 Array ( [0] => [1] => 0 [2] => )
Output for 4.3.2 - 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, 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 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_flip(): Can only flip STRING and INTEGER values! in /in/8qEgr on line 13 Warning: array_flip(): Can only flip STRING and INTEGER values! in /in/8qEgr on line 13 Warning: array_flip(): Can only flip STRING and INTEGER values! in /in/8qEgr on line 13 Warning: array_flip(): Can only flip STRING and INTEGER values! in /in/8qEgr on line 13 Array ( [0] => [1] => 0 [2] => )
Output for 4.3.0 - 4.3.1
Warning: array_flip() [http://www.php.net/function.array-flip]: Can only flip STRING and INTEGER values! in /in/8qEgr on line 13 Warning: array_flip() [http://www.php.net/function.array-flip]: Can only flip STRING and INTEGER values! in /in/8qEgr on line 13 Warning: array_flip() [http://www.php.net/function.array-flip]: Can only flip STRING and INTEGER values! in /in/8qEgr on line 13 Warning: array_flip() [http://www.php.net/function.array-flip]: Can only flip STRING and INTEGER values! in /in/8qEgr on line 13 Array ( [0] => [1] => 0 [2] => )
preferences:
72.93 ms | 410 KiB | 5 Q