In this tutorial we will show you the solution of PHP get array key by value multidimensional, as we know multidimensional array will had more than two many values with combination of key and values here we using array_column() method for getting value by using key from we defined array.

The array_column() function returns the values from a single column in the input array. The column represents the number in each group or the size of each group.

Step By Step Guide On PHP Get Array Key By Value Multidimensional :-

Here we defined an array namely ‘$arr’ with some initialized values '['name'=>'Prawin', 'email'=>'pavi@gmail.com'],[ 'name'=>'Dhanu', 'email'=>'dhanu@gmail.com'].

For user clarification we provide some headlines about the program then we getting ‘name’ column values by array_column() method.

Here we passed two parameters, first parameter is array $arr then second parameter refers key name in array $arr and collected column values stored to variable $names then displayed using print_r() method.

<?php
    $arr=[
        [
            'name'=>'Prawin',
            'email'=>'pavi@gmail.com'
        ],
        [
            'name'=>'Dhanu',
            'email'=>'dhanu@gmail.com'
        ],
    ];
    echo "Displaying got values by key";
    $names=array_column($arr,'name');
    print_r($names);
?>

1. A php script can be placed anywhere in the document. A php script starts with <?php and end with ?>.
2. The default file extension for php files is “.php” and php statements end with ‘;’ semicolon.
3. Here we defined array $arr with some associative values '['name'=>'Prawin', 'email'=>'pavi@gmail.com'],[ 'name'=>'Dhanu', 'email'=>'dhanu@gmail.com'].
4. Then we printed headline of the program for describe about program concept and we applied array_cloumn() method with parameters of array name $arr, key name in array ‘name’.
5. So it will collects key ‘name’ values from array $arr then stored to variable $names and displayed using print_r().
6. We can also collects key ‘email’ values from array $arr as well as it will same as above we have seen except one thing we need to modify the key from ‘name’ to ‘email’ then we get result array values of ‘pavi@gmail.com,dhanu@gmail.com’.
7. We had another method for collects values by key (i.e)array_map() method. In future we will see about this method and how we will practically use them in programs.
8. When we needs to print whole elements in array we need to use print_r() method otherwise we can’t print all elements then it returns some error on webpage.

Conclusion :-

In conclusion we are able to know how to get array key by value from multidimensional array using php.

First we need to start our xampp server then we load this program on browser we can see headline about the program and we displayed array $names values ‘Array ( [0] => Prawin [1] => Dhanu )’ it contain key ‘name’ values from array $arr.

You can define array with some other values like array with numeric and string values anything result will same but be aware when printing array result because sometimes we gets error for displaying values by using wrong method also.

I hope this tutorial on PHP get array key by value multidimensional helps you and the steps and method mentioned above are easy to follow and implement.