Syntax
| array array_intersect_key ( array $array1, array $array2 [, array $array3 ...] ); |
Definition and Usage
Returns an array containing all the values of array1 which have matching keys that are present in all the arguments.
Paramters
| Parameter | Description |
|---|---|
| array1 | Required. The first array is the array that the others will be compared with. |
| array2 | Required. An array to be compared with the first array |
| array3 | Optional. An array to be compared with the first array |
Return Values
Returns FALSE if there is any error.
Example
Try out following example:
<?php
$array1 = array('blue' => 1, 'red' => 2, 'green' => 3 );
$array2 = array('green' => 4, 'blue' => 5, 'yellow' => 6,);
$result = array_intersect_key($array1, $array2);
print_r($result);
?>
|
This will produce following result:
Array ( [blue]=> 1 [green] => 3 ) |
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