get the first sub array key with out looping a multidimensional array PHP

Question

hi i have a multidimensional l array .

Array
(
    [1] => Array
        (
            [38] => Fashion Retail | Fashion Accessories
        )

    [10] => Array
        (
            [194] => Automotive | 4x4
            [206] => Automotive | Aftermarket Parts and Kits
            [201] => Automotive | ATVs
        )

)

i want to get the first sub array's key , in this scenario it is 1 , i can get it using a foreach loop .

foreach($myarry as $key=>$val)

is there any way to achieve this with out looping , please help . thanks in advance

score 1 · Accepted Answer · answered Jan 23 '13 at 06:21

1

If using >= PHP 5.5...

$first = array_keys($myarry)[0];

If using an older PHP, just assign the keys somewhere, and then subscript the first element as normal.

answered Jan 23 '13 at 06:21

alex

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@KanishkaPanamaldeniya `version_compare("5.3.5", "5.5", ">=");` – alex Jan 23 '13 at 06:25

web-nomad · Answer 2 · 2013-01-23T06:28:47.550

1

$arrKeys = array_keys($array);
$key = array_shift($arrKeys); // gives first key

Returns the first key and deletes this from the arrKeys, hence the next key, 10 in this case will be returned on next call. No need to make another array.

edited Jan 23 '13 at 06:28

answered Jan 23 '13 at 06:23

web-nomad

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score 1 · Answer 3 · edited Jan 23 '13 at 06:42

1

yep, I did that , I have used

current(array_keys($my_array))

edited Jan 23 '13 at 06:42

bla

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answered Jan 23 '13 at 06:24

Kanishka Panamaldeniya

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Will not give you the second, third key and so on... – web-nomad Jan 23 '13 at 06:28
ya i know ,but for my case it will work , thanks for the comment – Kanishka Panamaldeniya Jan 23 '13 at 06:28

score 0 · Answer 4 · answered Jan 23 '13 at 06:24

0

print_r($myarry[array_keys($myarry)[0]]);

answered Jan 23 '13 at 06:24

Varun Bajaj

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That gets the first value, not the key. – alex Jan 23 '13 at 06:26

score 0 · Answer 5 · answered Jan 23 '13 at 06:42

0

Please try:

reset($myarry);
$first_key = key($myarry);

answered Jan 23 '13 at 06:42

Sankar V

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get the first sub array key with out looping a multidimensional array PHP

5 Answers5