PHP - Find key in multidimensional array [duplicate]

Question

Is there any predefined PHP function to find a key in a multi dimensional array?

In the below example - there is a variable name 'rose' and I need to get the key of the array by using the variable name. The result of the key is "flower".

$array = array (
                    'fruits' => array (
                                            'mango',
                                            'cherry'
                                    ),
                    'flowers' => array (
                                            'rose'
                                    )
            );

How do I achieve this?

Are the groups mutually exclusive? In other words, can a term appear in multiple groups and do you need to find all applicable groups? — Ja͢ck
– Ja͢ck, Commented Apr 1, 2014 at 8:08

Shankar Narayana Damodaran · Accepted Answer · 2014-04-01 07:57:34Z

4

Loop it up using a foreach

$keyword='mango';
foreach($array as $k=>$arr)
{
    if(in_array($keyword,$arr))
    {
        echo $k;break;// "prints" fruits
    }
}

Working Demo

answered Apr 1, 2014 at 7:57

Shankar Narayana Damodaran

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2 Comments

Shankar Narayana Damodaran Over a year ago

@Jeff, Nah, did you check the demo ?

Jeff Over a year ago

Just deleted my comment when I realized my mistake! Sorry.

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