The array_intersect_assoc function is an advanced version of the array_intersect function which we studied in the previous tutorial. It compares both the keys and values of two or more arrays and returns the matching result.
It compares the keys and values from the first array with the keys and values of other arrays and returns an associative array that contains the common/matching keys and values.
What is the syntax of the array_intersect_assoc function in PHP?
array_intersect_assoc(array1,array2,array3, ...)
| Parameters | Details |
| array1 | Array to make comparison from – Required |
| array2 | Array to compare with – Required |
| array3,… | Further arrays to compare with – Required |
Examples of array_intersect_assoc function
<?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);
?>In the above example, the array_intersect function compares the keys and values of two arrays and returns 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);
?>In the above example, the array_intersect function compares the keys and values of three arrays and returns the matches.
