Home >>PHP Array Functions >PHP array_udiff_uassoc( ) Function
PHP array_udiff_uassoc( ) Function
PHP array_udiff_uassoc( ) Function
PHP array_udiff_uassoc( ) function is used to get the difference between two or more given input arrays. It compares two or more arrays according to their keys and values using two user-made functions and returns an array containing the elements that are present in the first array but not in the other given arrays.
Syntax:
array_udiff_uassoc(array1,array2,array3, ...,func_key,func_value);
Parameter Values
| Parameter | Description |
|---|---|
| array1 | This is a requiredparameter.This parameter defines the array to compare from. |
| array2 | This is a requiredparameter.This parameter definesan array to compare against. |
| array3,... | This is an optionalparameter.This parameter definesmore arrays to compare against. |
| func_key | This is a requiredparameter.This parameter definesthe name of the user-defined function that compares the array keys. |
| func_value | This is a requiredparameter.This parameter definesthe name of the user-defined function that compares the array values. |
Here is an example of array_udiff_uassoc() function in PHP:
<html>
<body>
<pre>
<?php
function function_key($a,$b)
{
if ($a===$b)
{
return 0;
}
return ($a>$b)?1:-1;
}
function function_value($a,$b)
{
if ($a===$b)
{
return 0;
}
return ($a>$b)?1:-1;
}
$x=array("a"=>"PHP","b"=>"PHPTPOINT","c"=>"Python","d"=>"Java","e"=>"NodeJS");
$y=array("a"=>"PHP","b"=>"Java","d"=>"Python","e"=>"NodeJS");
$result=array_udiff_uassoc($x,$y,"function_key","function_value");
print_r($result);
?>
</pre>
</body>
</html>
Output:
Array
(
[b] => PHPTPOINT
[c] => Python
[d] => Java
)
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