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array_diff_keyComputes the difference of arrays using keys for comparison Description
array array_diff_key
( array
$array1
, array $array2
[, array $...
] )
Compares the keys from Parameters
Return Values
Returns an array containing all the entries from
Examples
Example #1 array_diff_key example The two keys from the key => value pairs are considered equal only if (string) $key1 === (string) $key2 . In other words a strict type check is executed so the string representation must be the same.
<?php The above example will output: array(2) { ["red"]=> int(2) ["purple"]=> int(4) } Notes
See Also
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