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<?php $array = array(1, "apples",2, "oranges",3, "plums"); // array_filter() $lambda = function( $item ) { if ( ctype_alpha($item) ) { return true; } }; $filtered = array_filter( $array, $lambda); var_dump($filtered); // using array_map() $callback = function($item) { return strtoupper($item); }; $nu = array_map( $callback, $filtered); var_dump($nu); // array_walk() echo array_walk($array);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: ctype_alpha(): Argument of type int will be interpreted as string in the future in /in/UeZhf on line 6 Deprecated: ctype_alpha(): Argument of type int will be interpreted as string in the future in /in/UeZhf on line 6 Deprecated: ctype_alpha(): Argument of type int will be interpreted as string in the future in /in/UeZhf on line 6 array(3) { [1]=> string(6) "apples" [3]=> string(7) "oranges" [5]=> string(5) "plums" } array(3) { [1]=> string(6) "APPLES" [3]=> string(7) "ORANGES" [5]=> string(5) "PLUMS" } Fatal error: Uncaught ArgumentCountError: array_walk() expects at least 2 arguments, 1 given in /in/UeZhf:21 Stack trace: #0 /in/UeZhf(21): array_walk(Array) #1 {main} thrown in /in/UeZhf on line 21
Process exited with code 255.

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