The array with master values to check.
An array to compare values against.
A variable list of arrays to compare.
Returns an associative array containing all the values in array1 that are present in all of the arguments.
$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
$array2 = array("a" => "green", "yellow", "red");
$result_array = array_intersect_assoc($array1, $array2);
The above example will output:
[a] => green
In our example you see that only the pair
"green" is present in both arrays and thus is returned.
"red" is not returned because in
$array1 its key is
the key of "red" in
The two values from the
key => value pairs are
considered equal only if
(string) $elem1 === (string) $elem2 . In other words
a strict type check is executed so the string representation must be