How to find the index position matched key in PHP multidimensional array

Question

I have a multidimensional array. i want to find the position of given key in that array.

my array

Array
(
    [200] => Array
        (
            [totalQuesAttempted] => 10
            [totalCorrectQuestion] => 2
        )

    [100] => Array
        (
            [totalQuesAttempted] => 10
            [totalCorrectQuestion] => 3
        )

    [400] => Array
        (
            [totalQuesAttempted] => 10
            [totalCorrectQuestion] => 4
        )

    [300] => Array
        (
            [totalQuesAttempted] => 10
            [totalCorrectQuestion] => 7
        )

    [500] => Array
        (
            [totalQuesAttempted] => 10
            [totalCorrectQuestion] => 8
        )

)

i am passing UPID value, and i need index position of that UPID.

$UPID = "300";
$result = array_search($UPID, array_values($usersAttemptsInfo));

my expected output is 3 because 300 index position is 3

u_mulder · Accepted Answer · 2020-07-27 08:23:34Z

1

Everything is correct but instead of array_values use array_keys:

$UPID = "300";
$result = array_search($UPID, array_keys($usersAttemptsInfo)); 
echo $result;

answered Jul 27, 2020 at 8:23

u_mulder

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