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

SUBMITTED BY: henry1874w

DATE: June 23, 2017, 9:28 p.m.

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

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