$array1
, array $array2
[, array $...
] )
Compares array1 against array2 and
returns the difference. Unlike array_diff()
the array
keys are also used in the comparison.
The array to compare from
An array to compare against
More arrays to compare against
Returns an array
containing all the values from
array1 that are not present in any of the other arrays.
Example #1 array_diff_assoc() example
In this example you see the "a" => "green" pair is present in both arrays and thus it is not in the output from the function. Unlike this, the pair 0 => "red" is in the output because in the second argument "red" has key which is 1.
<?php
$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
$array2 = array("a" => "green", "yellow", "red");
$result = array_diff_assoc($array1, $array2);
print_r($result);
?>
The above example will output:
Array
(
[b] => brown
[c] => blue
[0] => red
)
Note: This function only checks one dimension of a n-dimensional array. Of course you can check deeper dimensions by using, for example, array_diff_assoc($array1[0], $array2[0]);.
