PHP array_intersect_uassoc() Function
Definition
The array_intersect_uassoc() function compares the keys and values of two or more arrays, and returns the matches by using a user-defined key comparison function.
Syntax
PHP array_intersect_uassoc() Function has the following syntax.
array_intersect_uassoc(array1,array2,array3...,myfunction)Parameter
| Parameter | Is Required | Description |
|---|---|---|
| array1 | Required. | Array to be compared with |
| array2 | Required. | Array to be compared with array1 |
| array3,... | Optional. | Array to be compared with array1 |
| myfunction | Required. | Function used to do the comparison |
myfunction defines a callable comparison function. The comparison function must return an integer <, =, or > than 0 if the first argument is <, =, or > than the second argument.
Example
Intersect associate array with user defined function
<?php// w w w . j a v a 2 s. c om
function myfunction($a,$b){
if ($a===$b){
return 0;
}
return ($a>$b)?1:-1;
}
$a1=array("a"=>"A","b"=>"Bed","c"=>"Cat","j"=>"java2s.com");
$a2=array("d"=>"Dog","b"=>"Bed","p"=>"PHP");
$result=array_intersect_uassoc($a1,$a2,"myfunction");
print_r($result);
?>
The code above generates the following result.
