Matching array1 value with array2 key, output matched array2 value

Question

Is there a way to do the following:

$array1 = array( "two" => "2", "three" => "3")

$array2 = array("two", "three", "four")

I want to match array2's value with array1's key. Upon matching, I want to output array1's value.

Thank you

Please provide code showing what you have tried, and the errors/problems you encountered. — JimL
– JimL, Commented Jul 30, 2013 at 10:48
array_intersect_key() could be a useful function here; perhaps used with array_flip() on your second array — Mark Baker
– Mark Baker, Commented Jul 30, 2013 at 10:53

Benz · Accepted Answer · 2013-07-30 11:06:11Z

3

Like Mark Baker commented, you can use array_flip() together with array_intersect_key()

$array1 = array( "two" => "2", "three" => "3");

$array2 = array("two", "three", "four");
$array2 = array_flip($array2);

print_r(array_intersect_key($array1, $array2) );

Output:

Array
(
    [two] => 2
    [three] => 3
)

answered Jul 30, 2013 at 11:06

Benz

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Comments

Prasannjit · Accepted Answer · 2013-07-30 10:59:20Z

1

$array1 = array( "two" => "2", "three" => "3");
foreach($array1 as $key=>$val){
    $array_1[] = $key;
}
$array2 = array("two", "three", "four");


$result = array_diff($array2, $array_1);

print_r($result);

answered Jul 30, 2013 at 10:59

Prasannjit

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