CODEWITHSUNDEEP
phparraysmultidimensional-array
Rafał Konarski
Rafał Konarski

Reputation: 87

Find value in multidimensional array by another key and value

I have the following array: 

$array = array(
   'item-img-list' => array(
      array(
         'image-type' => 1,
         'image-url' => 'http://img07.allegroimg.pl/...'
      ),
      array(
         'image-type' => 2,
         'image-url' => 'http://img07.allegroimg.pl/...'
      ),
      array(
         'image-type' => 3,
         'image-url' => 'http://img07.allegroimg.pl/...'
      )
   )
)

How to get first 'image-url' value where 'image-type' = '2'? I'm trying do that by this code but nothing: 

$zdjecia = $item['item-img-list'];
foreach($zdjecia as $zdjecie) {
   foreach($zdjecie as $key=>$value) {
      if($key == "image-type" && $value == "2") {
         $zdjecie_aukcji = $key['image-url'];
      }
   }
}

Thank you for any kind of help!

Works!

$searchKey = 2;
foreach($zdjecia as $zdjecie) {
    if (**$zdjecie->{'image-type'}** == $searchKey){
        $zdjecie_aukcji = **$zdjecie->{'image-url'}**;
        break;
    }
}

Upvotes: 3

Views: 170

Answers (6)

Ulrich Horus
Ulrich Horus

Reputation: 350

modify to: 

$zdjecia = $array['item-img-list'];
foreach($zdjecia as $zdjecie) {
  if($zdjecie['image-type'] == '2') {
     $zdjecie_aukcji = $zdjecie['image-url'];
  }
}

Upvotes: 2

Andrew
Andrew

Reputation: 1776

Add break; right after 

$zdjecie_aukcji = $key['image-url'];

Upvotes: 2

Roopendra
Roopendra

Reputation: 7762

why not simply this:- 

    $array = array(
       'item-img-list' => array(
          array(
             'image-type' => 1,
             'image-url' => 'http://img07.allegroimg.pl/...'
          ),
          array(
             'image-type' => 2,
             'image-url' => 'http://img07.allegroimg.pl/...'
          ),
          array(
             'image-type' => 3,
             'image-url' => 'http://img07.allegroimg.pl/...'
          )
       )
    );
    $newArray = array();

    foreach($array['item-img-list'] as $k=>$v){
      $newArray[$v['image-type']] = $v['image-url'];
    }

Output :- 

     Array
    (
        [1] => http://img07.allegroimg.pl/...
        [2] => http://img07.allegroimg.pl/...
        [3] => http://img07.allegroimg.pl/...
    )

or 

    echo $newArray[2];

you can also check key like this: 

 if (array_key_exists(2, $newArray)) {
   // Do whatever you want
 }

Working Demo

Upvotes: 2

Ilia Ross
Ilia Ross

Reputation: 13412

A suggestions with custom function that I use for my project to find a value by key in multidimensional array:

function array_search_multi($array, $key, $value)
{
    $results = array();
    if (is_array($array))
    {
        if (isset($array[$key]) && $array[$key] == $value)
            $results[] = $array; 
        foreach ($array as $subarray)
            $results = array_merge($results, array_search_multi($subarray, $key, $value));
    }
    return $results;
}

Usage:

$results = array_search_multi($array, 'image-type', '2');
echo $results[0]['image-url'];

Output:

http://img07.allegroimg.pl/...

Working example

Upvotes: 2

Mark Baker
Mark Baker

Reputation: 212412

$zdjecia = $item['item-img-list'];
$searchKey = 2;
foreach($zdjecia as $zdjecie) {
    if ($zdjecie['image-type'] == $searchKey)
        $zdjecie_aukcji = $zdjecie['image-url'];
        break;
    }
}

or (PHP >=5.5)

$zdjecia = $item['item-img-list'];
$searchKey = 2;
$results = array_column(
    $zdjecia,
    'image-url',
    'image-type'
);

$zdjecie_aukcji = $results[$searchKey];

Upvotes: 2

Jan Heinrich Reimer
Jan Heinrich Reimer

Reputation: 781

foreach($zdjecia as $zdjecie) {
   foreach($zdjecie as $key=>$value) {
      if($key == "image-type" && $value == "2") {
         $zdjecie_aukcji = $zdjecie['image-url'];
      }
   }
}

Upvotes: 2

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