Learning PHP
Advanced PHP
PHP Function Reference
PHP Useful Resources
Selected Reading
© 2011 TutorialsPoint.COM
|
PHP Function array_udiff_assoc()
Syntax
array_udiff_assoc ( $array1, $array2 [, $array3 ..., $data_compare_func] );
|
Definition and Usage
Computes the difference of arrays with additional index check, compares data by a callback function and returns an array containing all the values from array1 that are not present in any of the other arguments.
Paramters
Parameter | Description |
array1 | Required. Specifies an array. |
array2 | Required. Specifies an array to be compared with the first array. |
array3 | Optional. Specifies an array to be compared with the first array. |
data_compare_func | Required. The name of the user-made function. |
Return Values
Returns an array containing all the values from array1 that are not present in any of the other arguments.
Example
Try out following example:
<?php
function call_back_function($v1,$v2)
{
if ($v1===$v2)
{
return 0;
}
return 1;
}
$array1 = array("a"=>"orange","b"=>"apple","c"=>"mango");
$array2 = array("a"=>"orange","b"=>"mango","c"=>"apple");
print_r(array_udiff_assoc($array1,$array2,"call_bak_function"));
?>
|
This will produce following result:
Array ( [b]=>apple [c] => mango )
|
|
|
|