Today, We want to share with you Count total number of items in nested array in PHP.In this post we will show you PHP count items in a multi-dimensional array, hear for Multi-Dimensional array count in PHP we will give you demo and example for implement.In this post, we will learn about Count total number of items in nested arrays in PHP with an example.
Count total number of items in nested array in PHP
There are the Following The simple About total number of items in nested array Full Information With Example and source code.
As I will cover this Post with live Working example to develop php count array elements with specific value, so the count multidimensional array php for this example is following below.
PHP Multidimensional Nested Array count
Today We were working on Simple PHP code that had best way to understand arrays structured like this:
$item_no = [
'a' => [ 1, 2, 3, 4 ],
'b' => [ 5, 6, 7 ],
];
We needed to simple calculate the total number of items in the nested php arrays. I didn’t ANY find a PHP function to help me with that therefor We came up with this idea:
$total_count = array_sum( array_map( 'count', $item_no ) ); // This returns 7.
How this works
The array_map( ‘count’, $item_no ) part replaces the subarrays in $item_no with the result of calling count()on them:
$subarray_counts = array_map( 'count', $item_no );
var_dump( $subarray_counts );
/*
* Output:
*
* array(2) {
* 'a' =>
* int(4)
* 'b' =>
* int(3)
* }
*/
The array_sum() PHP function then calculates the Addition of these item counts.
Please let me know if you found this PHP Array idea useful! ?
Web Programming Tutorials Example with Demo
How to count items in a nested array?
To count the number of items in a nested array in PHP, you can use the recursive function array_walk_recursive() along with a counter variable.
Here’s an example:
$array = [
'foo',
'bar',
[
'baz',
'qux',
[
'quux',
'corge'
]
]
];
$count = 0;
array_walk_recursive($array, function($item) use (&$count) {
$count++;
});
echo $count; // Output: 6
In this example, we have a nested array $array with 6 items. To count the number of items in the array, we initialize a counter variable $count to 0.
We then use array_walk_recursive() to iterate through each item in the array, including items in nested arrays. The callback function passed to array_walk_recursive() increments the counter variable $count by 1 for each item.
After the function has been called on each item in the array, we can output the final count using echo $count. In this example, the output will be 6, which is the total number of items in the nested array.
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