Listing all the types of file extensions with total numbers present inside a directory

Count extensions with foreach() and pathinfo()

The old each() function was removed from PHP 8. Use foreach for the result array, and count only regular files when you want extension statistics.

<?php
$directory = __DIR__;
$counts = [];

foreach (scandir($directory) ?: [] as $entry) {
    $path = $directory . DIRECTORY_SEPARATOR . $entry;
    if (!is_file($path)) {
        continue;
    }

    $extension = strtolower(pathinfo($entry, PATHINFO_EXTENSION));
    $extension = $extension !== '' ? $extension : '[no extension]';
    $counts[$extension] = ($counts[$extension] ?? 0) + 1;
}

ksort($counts);
foreach ($counts as $extension => $total) {
    echo htmlspecialchars($extension, ENT_QUOTES, 'UTF-8') . ' (' . $total . ')
';
}
?>

This script will display total number of files with different file extensions present inside a directory.

To get all the files including directory and dots ( representing current director and parent directory ) we can use scandir() function.

$path = '../../php_tutorial/'; // change the path
$ar=scandir($path); // Array with all file and directory names

From this we will remove the current directory and parent directory dots ( single and double dots ) by using array_diff()

$ar=array_diff($ar,array('.','..'));// remove dots

Scandir output: listing of files & sub folders

We will create a function my_pathinfo() to get the name of file extensions of the elements of the array. We will use array_map() function to apply our function my_pathinfo() on all the elements ( output of scandir() ) of the array.

$extensions=array_map('my_pathinfo',$ar); // Array with all file extensions
// function to get file extensions //
function my_pathinfo($str){
return (pathinfo($str, PATHINFO_EXTENSION)); // return the file extension
}

We will use array_count_values() to create an array with extensions used and frequency of their occurrence.

$result=array_count_values($extensions);

We will display all the elements of the array

foreach ($result as $key => $val) {
echo "$key ( $val ) <br>";
}

The full code is here. Change the $path to match your directory path.

<?Php
$path = '../../php_tutorial/'; // change the path
$ar=scandir($path); // Array with all file and directory names
$ar=array_diff($ar,array('.','..'));// remove dots

// Each element is executed through callback function //
$extensions=array_map('my_pathinfo',$ar); // Array with all file extensions
// function to get file extensions //
function my_pathinfo($str){
return (pathinfo($str, PATHINFO_EXTENSION)); // return the file extension
}
//Count the frequency of occurrence of elements //
$result=array_count_values($extensions); 
foreach ($result as $key => $val) {
echo "$key ( $val ) <br>";
}
?>

Here is the output

zip ( 5 ) 
php ( 61 ) 
txt ( 6 ) 
htm ( 3 ) 
js ( 3 ) 
css ( 3 ) 
xml ( 3 ) 
( 7 ) 
csv ( 2 ) 
jpg ( 2 )

There are 7 directories present so there is a listing of number 7 without any file extension

Directory Functions PHP Array Change current Directory to a new one

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

About the author Watch on YouTube

Connect:

Subscribe to our YouTube Channel here

Listing of all types of file extensions with total numbers present inside a directory.

Count extensions with foreach() and pathinfo()

Subhendu Mohapatra