PHP supports multidimensional arrays that are two, three, four, five, or more levels deep. First one is an array and the second one is COUNT_NORMAL which counts all the elements of the nested array, if any, existed inside the main array. At first, we have accessed elements of the given array using the for loop along with the foreach loop. to Find the foreach Index with PHP In PHP, array elements can contain a mix of data types, and they can have string keys or numeric keys. There are about 100 elements in my array. The second block of PHP shows how to access all of the data in … How To Search Value In A 2D Array Using Java NetBeans. Accessing multidimensional array elements: There are mainly two ways to access multidimensional array elements in PHP. In this example, we will take an indexed array with two items. So, in this case, both the key and index variables are used for finding the index of foreach. Become a Patron! A multidimensional array is an array containing one or more arrays. To transform your current array to be indexed by id, you could use this code: $indexed = array(); foreach($array as $element) { $indexed[$element['id']] = $element['header']; } // $indexed now resembles id => header You can then access header values in constant time using $indexed[$id]. multidimensional array PHP array_filter() function filters elements of an array by a callback function and it can be used for many purposes. Here, you will see how to find the value from a multidimensional array and return the key using PHP. matlabs max function only does 1 dimension. Update specific value of key in multidimensional array 2 Types of Multidimensional Array in PHP - EDUCBA to sort a multidimensional array in PHP Multidimensional Arrays