What is the function count(glob("*.jpg")) used for in PHP?

The function count(glob("*.jpg")) is used to count the number of .jpg files in a directory. This can be useful when you need to know how many image files of a specific format are present in a folder. The glob() function is used to retrieve an array of file names that match a specified pattern, in this case "*.jpg", and count() is then used to count the number of elements in that array.

$jpgFiles = glob("*.jpg");
$jpgCount = count($jpgFiles);

echo "Number of .jpg files: " . $jpgCount;