PHP Tutorial - PHP array_intersect_assoc() Function
Definition
The array_intersect_assoc() function compares the keys and values of two or more arrays and returns an array that contains the entries from array1 that are present in array2, array3, etc.
Syntax
PHP array_intersect_assoc() Function has the following syntax.
array_intersect_assoc(array1,array2,array3...)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 |
Return
PHP array_intersect_assoc() Function returns an array that contains the entries from array1 that are present in array2, array3, etc.
Example 1
Compare the keys and values of two arrays, and return the matches:
<?php
$a1=array("a"=>"A","b"=>"B","c"=>"C","d"=>"Dog");
$a2=array("a"=>"B","b"=>"New B","c"=>"java2s.com");
$result=array_intersect_assoc($a1,$a2);
print_r($result);
?>
The code above generates the following result.
Example 2
Compare the keys and values of three arrays, and return the matches:
<?php
$a1=array("a"=>"A","b"=>"B","c"=>"C","d"=>"Dog");
$a2=array("a"=>"B","b"=>"New B","c"=>"java2s.com");
$a3=array("J"=>"java2s.com");
$result=array_intersect_assoc($a1,$a2,$a3);
print_r($result);
?>
The code above generates the following result.
