Say you have the following two array:
array1 = dogs, cat, rat, pig array2 = dogs, cat, pig
I want to compare these two arrays and remove elements that are not found in these two arrays to create a new array.
So the above two arrays would become:
tags = dogs, cat, pig
Is there a function in php for this?
Try array_intersect (click to see documentation).
BTW: This was the first search result for PHP array intersect...
You can use array_intersect
$array1 = array("a" => "green", "red", "blue");
$array2 = array("b" => "green", "yellow", "red");
$result = array_intersect($array1, $array2);
print_r($result);
The $result would be:
Array
(
[a] => green
[0] => red
)