What are some common methods for handling file types in PHP, especially when dealing with images, documents, and text files?

When handling different file types in PHP, especially images, documents, and text files, it is important to use appropriate functions and libraries to ensure proper handling and processing. For images, you can use functions like `imagecreatefromjpeg()` or `imagecreatefrompng()` to manipulate image files. For documents, you can use libraries like PHPWord or PHPExcel to work with Word or Excel files. For text files, you can use functions like `file_get_contents()` to read the contents of a text file.

// Example of handling image files
$image = imagecreatefromjpeg('image.jpg');
// Manipulate the image as needed
imagejpeg($image, 'new_image.jpg');
imagedestroy($image);

// Example of handling Word files using PHPWord library
require_once 'PHPWord.php';
$phpWord = new \PhpOffice\PhpWord\PhpWord();
// Load the Word file and work with it

// Example of handling text files
$content = file_get_contents('file.txt');
echo $content;