array_udiff() function in php
0 1953
array_udiff() function of PHP is used to return the difference of two or more PHP arrays by comparing the values of arrays with the help of a user-defined function. It is an inbuilt function of PHP.
Syntax:
array_udiff($array1,$array2,.....,$arrayN,user_function);
here,
$array1, $array2 and $arrayN are PHP arrays and user_function() is a user define function which contains the conditions which applies on arrays to calculate the difference.
Example 1:
<?php function user_function($x,$y) { if ($x===$y) { return 0; } return ($x>$y)?1:-1; } $arr1=array("FRUIT1"=>"apple","FRUIT2"=>"orange","FRUIT3"=>"banana"); $arr2=array("FRUIT4"=>"orange","FRUIT5"=>"fig","FRUIT1"=>"pear"); $result=array_udiff($arr1,$arr2,"user_function"); echo "<pre>"; print_r($result); ?>
Output:
Example 2:
<?php function user_function($x,$y) { if ($x===$y) { return 0; } return ($x>$y)?1:-1; } $arr1=array(1,2,3,4,5,6,7,8,9); $arr2=array(2,4,6,8); $result=array_udiff($arr1,$arr2,"user_function"); echo "<pre>"; print_r($result); ?>
Output:
Share:
Comments
Waiting for your comments