php check if value exists in multidimensional array

// 1d array
in_array('something', $array);

// 2d array
array_column($multi_array, 'your_column');

/**
0 => ['hi'=>0, 'your_column'=>1, 'hi'=>0, 'your_column'=>3]
will be
[1, 3]
and then you can apply the in_array function on that new array ^
*/

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Egil 90 points

                                    $userdb=Array
(
(0) =&gt; Array
    (
        (uid) =&gt; '100',
        (name) =&gt; 'Sandra Shush',
        (url) =&gt; 'urlof100'
    ),

(1) =&gt; Array
    (
        (uid) =&gt; '5465',
        (name) =&gt; 'Stefanie Mcmohn',
        (pic_square) =&gt; 'urlof100'
    ),

(2) =&gt; Array
    (
        (uid) =&gt; '40489',
        (name) =&gt; 'Michael',
        (pic_square) =&gt; 'urlof40489'
    )
);

$key = array_search(40489, array_column($userdb, 'uid'));

Thank you! 1

5 (1 Votes)

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