How can one check if a specific folder exists in PHP?

To check if a specific folder exists in PHP, you can use the `file_exists()` function with the path to the folder. This function returns true if the folder exists and false if it does not. You can then use an if statement to handle the logic based on the result of the `file_exists()` function.

$folderPath = 'path/to/folder';

if (file_exists($folderPath) && is_dir($folderPath)) {
    echo "The folder exists.";
} else {
    echo "The folder does not exist.";
}