Searching for a specific value within a multidimensional array in PHP can be a common requirement in various web development scenarios. In this comprehensive guide, we'll explore a practical approach to achieve this using PHP functions.
<?php
$array = array(
array(
"id"=>1,
"name"=>"test name 1",
"email"=>"test1@email.com"
),
array(
"id"=>2,
"name"=>"test name 2",
"email"=>"test2@email.com"
),
array(
"id"=>3,
"name"=>"test name 3",
"email"=>"test3@email.com"
),
);
// get all id's in array
$array_column = array_column($array, 'id');
// search id 2;
$key = array_search(2, $array_column);
echo $array[$key]['name'];
// OUTPUT : test name 2;
?>
A multidimensional array is an array that contains one or more arrays as its elements. Each internal array can have its own set of key-value pairs, creating a nested or hierarchical structure. In our example, we have an array containing arrays with "id," "name," and "email" as key-value pairs.
<?php
$array = array(
array(
"id" => 1,
"name" => "test name 1",
"email" => "test1@email.com"
),
array(
"id" => 2,
"name" => "test name 2",
"email" => "test2@email.com"
),
array(
"id" => 3,
"name" => "test name 3",
"email" => "test3@email.com"
),
);
?>
To efficiently search for a specific value within the multidimensional array, we can use the array_column function. In our example, we extract all "id" values into a separate array.
<?php
// get all id's in array
$array_column = array_column($array, 'id');
?>
Now that we have an array containing all
<?php
// search id 2;
$key = array_search(2, $array_column);
?>
