Arrays

array filter

Type:	application
Added by:	sultanzahir
Entered:	16/11/2001
Last modified:	08/12/2008
Rating:	- (fewer than 3 votes)
Views:	4935

with the function array filter one gets the value of any array as input and with the help of a callback for more functional editing and gets back a modified array.

<?PHP
 function un_zahl($wert) {   

                            return ($wert % 2 == 1);}

                            function a_zahl($wert) {

                               return ($wert % 2 == 0); 

                            }
 $array1 = array ("a"=>1,"b"=>2,"c"=>3,"d"=>5);
 $array2 = array (1, 2, 3, 4, 5, 6);
 $werte1 = array_filter($array1, "un_zahl");

                            echo "non-straight values:<br>";

                            while(list($key, $val) = each($werte1)){

                              echo $val . "<br>";

                            }

                            echo "straight values: <br>";
 $werte2 = array_filter($array2, "a_zahl");

                            while(list($key, $val) = each($werte2)){

                              echo $val . "<br>";

                            }
 ?>

Usage Example

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