View file File name : AbstractDetector.php Content :<?php namespace ImageMimeTypeGuesser\Detectors; abstract class AbstractDetector { /** * Try to detect mime type of image * * Returns: * - mime type (string) (if it is in fact an image, and type could be determined) * - false (if it is not an image type that the server knowns about) * - null (if nothing can be determined) * * @param string $filePath The path to the file * @return string|false|null mimetype (if it is an image, and type could be determined), * false (if it is not an image type that the server knowns about) * or null (if nothing can be determined) */ abstract protected function doDetect($filePath); /** * Create an instance of this class * * @return static */ public static function createInstance() { return new static(); } /** * Detect mime type of file (for images only) * * Returns: * - mime type (string) (if it is in fact an image, and type could be determined) * - false (if it is not an image type that the server knowns about) * - null (if nothing can be determined) * * @param string $filePath The path to the file * @return string|false|null mimetype (if it is an image, and type could be determined), * false (if it is not an image type that the server knowns about) * or null (if nothing can be determined) */ public static function detect($filePath) { if (!@file_exists($filePath)) { return false; } return self::createInstance()->doDetect($filePath); } }