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PHP array_intersect_assoc() Function

PHP Array Reference PHP Array Reference

Example

Compare the keys and values of two arrays, and return the matches:

<?php
$a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("a"=>"red","b"=>"green","c"=>"blue");

$result=array_intersect_assoc($a1,$a2);
print_r($result);
?>

Run example »

Definition and Usage

The array_intersect_assoc() function compares the keys and values of two (or more) arrays, and returns the matches.

This function compares the keys and values of two or more arrays, and return an array that contains the entries from array1 that are present in array2, array3, etc.


Syntax

array_intersect_assoc(array1,array2,array3...)

Parameter Description
array1 Required. The first array is the array that the others will be compared with
array2 Required. An array to be compared with the first array
array3,... Optional. An array to be compared with the first array

Technical Details

Return Value: Returns an array containing the entries from array1 that are present in all of the other arrays
PHP Version: 4.3.0+


More Examples

Example 1

Compare the keys and values of three arrays, and return the matches:

<?php
$a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("a"=>"red","b"=>"green","g"=>"blue");
$a3=array("a"=>"red","b"=>"green","g"=>"blue");

$result=array_intersect_assoc($a1,$a2,$a3);
print_r($result);
?>

Run example »


PHP Array Reference PHP Array Reference

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