CODEWITHSUNDEEP
phparraysvalidation
ILS
ILS

Reputation: 143

Validate matching array keys

Given the following arrays how can I elegantly validate that option, price and cost arrays have matching key values?

Array
(
    [option] => Array
        (
            [1] => C
            [2] => M
            [3] => G
        )

    [price] => Array
        (
            [1] => 100
            [2] => 200
            [3] => 300
        )

    [cost] => Array
        (
            [1] => 0
            [2] => 0
            [3] => 0
        )
)

I thought of running a foreach(array as key => values) on each array and sending those values to another array, and then using if(!in_array), but theres got to be a better way to do it.

Upvotes: 2

Views: 48

Answers (2)

thomasvvugt
thomasvvugt

Reputation: 57

I recommend using an array in this way:

Array
(
    [option] => Array
        (
            [C] => Array
                (
                    [price] => 100
                    [cost] => 0
                )

            [M] => Array
                (
                    [price] => 200
                    [cost] => 0
                )

            [G] => Array
                (
                    [price] => 300
                    [cost] => 0
                )

        )
)

PHP Code:

$product = array("option" => array("C" => array("price" => 100, "cost" => 0), "M" => array("price" => 200, "cost" => 0), "G" => array("price" => 300, "cost" => 0)));

Upvotes: 0

AbraCadaver
AbraCadaver

Reputation: 78994

It sounds like you want the same keys as there is no correlation with the values in the array. If so, you can run a diff on the keys of each sub-array:

if(call_user_func_array('array_diff_key', $array)) {
    // not the same keys
} else {
    // same keys
}
  • call_user_func_array() takes the array as an array of arguments and passes each to array_diff_key()
  • If the result is not empty then there are differences
  • If the result is empty then there are no differences

Upvotes: 2

Related Questions