Return the array position of the containing array

Question

Assuming I give you the following array:

$array = array (
    array (
      'key' => 'value'
    ),
    array (
      'key' => 'another value'
    ),
    array (
      'key' => 'yet another value'
    ),
    array (
      'key' => 'final value'
    )
);

What I want from this array is the position of the array with the value supplied. So If I am searching $array for the value of "yet another value" the result should be: 2 because the matching array is at position 2.

I know to do the following:

foreach ($array as $a) {
    foreach ($a as $k => $v) {
        if ($v ===  "yet another value") {
            return $array[$a]; // This is what I would do, but I want
                               //  the int position of $a in the $array.
                               //  So: $a == 2, give me 2.
        }
    }
}

Update:

the key is always the same

is key always the same?

n-dru
– n-dru

2015-06-10 17:19:29 +00:00
Commented Jun 10, 2015 at 17:19 — n-dru
– n-dru, Commented Jun 10, 2015 at 17:19
@n-dru yes the key is always the same

TheWebs
– TheWebs

2015-06-10 17:19:45 +00:00
Commented Jun 10, 2015 at 17:19 — TheWebs
– TheWebs, Commented Jun 10, 2015 at 17:19
have you decided yet which answer is OK for you? :-)

n-dru
– n-dru

2015-06-16 11:19:26 +00:00
Commented Jun 16, 2015 at 11:19 — n-dru
– n-dru, Commented Jun 16, 2015 at 11:19

n-dru · Accepted Answer · 2015-06-10 17:23:00Z

4

You can simply do this, if the keys are the same:

$v = "yet another value";
$a = array_search(array("key"=>$v),$array);
echo $a;//2

http://sandbox.onlinephpfunctions.com/code/1c37819f25369725effa5acef012f9ce323f5425

answered Jun 10, 2015 at 17:23

n-dru

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Comments

eagle12 · Accepted Answer · 2015-06-10 17:22:30Z

1

foreach ($array as $pos => $a) {
    foreach ($a as $k => $v) {
        if ($v ===  "yet another value") {
            return $pos;
        }
    }
}

This should be what you are looking for.

answered Jun 10, 2015 at 17:22

eagle12

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Comments

Ashwani · Accepted Answer · 2015-06-10 17:22:48Z

0

Since you want position of array then use count like:-

var count = 0;
foreach ($array as $a) {
    foreach ($a as $k => $v) {
        if ($v ===  "yet another value") {
            return count; 
        }
       count++;
    }
}

answered Jun 10, 2015 at 17:22

Ashwani

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Comments

Umair Ayub · Accepted Answer · 2015-06-10 17:26:41Z

0

As you said that key is always the same, so you can declare a variable outside loop like so.

$position = 0;
foreach ($array as $a) {
    foreach ($a as $k => $v) {
        if ($v ===  "yet another value") {
            return $position;
        }
    }
    $position++;
}

answered Jun 10, 2015 at 17:26

Umair Ayub

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