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<?php $array = array(1, "apples",2, "oranges",3, "plums"); // array_filter() $filtered = array_filter( $array, "ctype_alpha"); $nu = array_map( "strtoupper", $filtered); // array_walk $f = function(&$item,$key,$prefix) { $item = "$key: $prefix: $item"; }; array_walk($nu, $f,"fruit"); var_dump($nu); ?>
Output for 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 - 7.2.33, 7.3.0 - 7.3.24, 7.4.0 - 7.4.12, 8.0.0
array(3) { [1]=> string(16) "1: fruit: APPLES" [3]=> string(17) "3: fruit: ORANGES" [5]=> string(15) "5: fruit: PLUMS" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/uNEVV on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/uNEVV on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/uNEVV on line 10
Process exited with code 255.