Compare the keys of two arrays, and return the matches in PHP
Description
The following code shows how to compare the keys of two arrays, and return the matches.
Example
/*from w w w. j a v a 2 s . c om*/
<?php
$a1=array("a"=>"red","b"=>"Basic","c"=>"blue");
$a2=array("a"=>"red","c"=>"blue","d"=>"pink");
$result=array_intersect_key($a1,$a2);
print_r($result);
?>
The code above generates the following result.
