Array search multidimensional PHP

However, sometimes you want to store values with more than one key. For this, we have multidimensional arrays.


PHP - Multidimensional Arrays

A multidimensional array is an array containing one or more arrays.

PHP supports multidimensional arrays that are two, three, four, five, or more levels deep. However, arrays more than three levels deep are hard to manage for most people.

The dimension of an array indicates the number of indices you need to select an element.

  • For a two-dimensional array you need two indices to select an element
  • For a three-dimensional array you need three indices to select an element


PHP - Two-dimensional Arrays

A two-dimensional array is an array of arrays (a three-dimensional array is an array of arrays of arrays).

First, take a look at the following table:

NameStockSoldVolvo2218BMW1513Saab52Land Rover1715

We can store the data from the table above in a two-dimensional array, like this:

$cars = array (
  array("Volvo",22,18),
  array("BMW",15,13),
  array("Saab",5,2),
  array("Land Rover",17,15)
);

Now the two-dimensional $cars array contains four arrays, and it has two indices: row and column.

To get access to the elements of the $cars array we must point to the two indices (row and column):

Example

echo $cars[0][0].": In stock: ".$cars[0][1].", sold: ".$cars[0][2].".
";
echo $cars[1][0].": In stock: ".$cars[1][1].", sold: ".$cars[1][2].".
";
echo $cars[2][0].": In stock: ".$cars[2][1].", sold: ".$cars[2][2].".
";
echo $cars[3][0].": In stock: ".$cars[3][1].", sold: ".$cars[3][2].".
";
?>

Try it Yourself ยป

We can also put a for loop inside another for loop to get the elements of the $cars array (we still have to point to the two indices):

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Example #1 array_search() example

<?php
$myarray = array(0 => 'blue', 1 => 'black', 2 => 'pink', 3 => 'black');

$array_key = array_search('pink', $myarray); // $array_key = 2;
$array_key = array_search('black', $myarray);   // $array_key = 1;
?>

Example #2 PHP Multidimensional Array Searching example

<?php
$clients = array(
  2 => array(
    'name' => 'newcar',
    'fav_car' => 'vanto'
  ),
  5=> array(
    'name' => 'livecar',
    'fav_car' => 'varna'
  )
);

$data_found_key = array_search('varna', array_column($clients, 'fav_car'));
?>

Example #3 array_search for multi dimensional array

function find_car_with_position($car_list, $position) {
    foreach($car_list as $index => $car) {
        if($car['Position'] == $position) return $index;
    }
    return FALSE;
}

Example #4 PHP Multidimensional Array Searching

function mygetvalue($products, $field, $value)
{
   foreach($products as $array_key => $product)
   {
      if ( $product[$field] === $value )
         return $array_key;
   }
   return false;
}

Example #5 PHP multidimensional array search by value

function gersearchRes($id, $myarray) {
   foreach ($array as $array_key => $val) {
       if ($val['userid'] === $id) {
           return $array_key;
       }
   }
   return null;
}

$id = gersearchRes('100', $user_master);
or 
$array_key = array_search('100', array_column($user_master, 'userid'));
or
$array_key = array_search('100', array_column($user_master, 'userid'));
or
$array_key = array_keys(array_column($user_master, 'userid'), 50245);

Example

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Are you looking for example of multidimensional array search by value in php. Here you will learn php multidimensional array search by value. Iโ€™m going to show you about php multidimensional array search key by value. We will look at example of how to search value in multidimensional array in php. Let's get started with how to search by key= value in a multidimensional array in php.

If you need to get find value from multidimensional array in php. you can search key value in multidimensional array in php.

Here, i will give you simple array what is requirement and how i will solve that problem. right now i have two array $students and $studentsAddress in this example. when i display $students array with foreach loop i also need to display address on those student address too. But problem is there is a user_id key with first array id and some records. so i used array_column() and array_column() array function to solve.

How to search in multi dimensional array in PHP?

The simple code to search the value in multidimensional array is described as follows: array_search($value['id'], array_column($studentsAddress, 'user_id'))

How to search multiple value in array in PHP?

If you want to find the duplicates as well, you can first make a pass with array_unique, then iterate over that array using array_keys on the original; anything which returns an array of length > 1 is a duplicate, and the result is the keys in which the duplicates are stored.

How do you find a multidimensional array?

In PHP, multidimensional array search refers to searching a value in a multilevel nested array. There are various techniques to carry out this type of search, such as iterating over nested arrays, recursive approaches and inbuilt array search functions.

How to search for an array value in PHP?

PHP in_array() Function The in_array() function searches an array for a specific value. Note: If the search parameter is a string and the type parameter is set to TRUE, the search is case-sensitive.