CODEWITHSUNDEEP
php
user3500823
user3500823

Reputation: 1

how to get the index of an array using the value in php

<?php
    $interests[50] = array('fav_beverages' => "beer");
?>

now i need the index (i.e. 50 or whatever the index may be) from the value beer.

I tried array_search(), array_flip(), in_array(), extract(), list() to get the answer.

please do let me know if I have missed out any tricks for the above functions or any other function I`ve not listed. Answers will be greatly appreciated.

thanks for the replies. But for my disappointment it is still not working. btw I have a large pool of data like "beer"); $interests[50] = array('fav_cuisine' => "arabic"); $interests[50] = array('fav_food' => "hummus"); ?> . my approach was to get the other data like "arablic" and "hummus" from the user input "beer". So my only connection is via the index[50].Do let me know if my approach is wrong and I can access the data through other means.My senior just informed me that I`m not supposed to use loop.

Upvotes: 0

Views: 204

Answers (2)

Omer Arshad
Omer Arshad

Reputation: 520

This should work in your case.

$interests[50] = array('fav_beverages' => "beer");

function multi_array_search($needle, $interests){
    foreach($interests as $interest){
        if (array_search($needle, $interest)){
            return array_search($interest, $interests);
            break;
        }
    }
}

echo multi_array_search("beer", $interests);

Upvotes: 2

Amal Murali
Amal Murali

Reputation: 76666

If your array contains multiple sub-arrays and you don't know which one contains the value beer, then you can simply loop through the arrays, and then through the sub-arrays, to search for the value, and then return the index if it is found:

$needle = 'beer';

foreach ($interests as $index => $arr) {
    foreach ($arr as $value) {
        if ($value == $needle) {
            echo $index;
            break;
        }
    }
}

Demo

Upvotes: 1

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