php根據url自動產生縮圖實現代碼

RewriteEngine On # '-s' (is regular file, with size) # '-l' (is symbolic link) # '-d' (is directory) # 'ornext|OR' (or next condition) # 'nocase|NC' (no case) # 'last|L' (last rule) RewriteCond %{REQUEST_FILENAME} -s [OR] RewriteCond %{REQUEST_FILENAME} -l [OR] RewriteCond %{REQUEST_FILENAME} -d RewriteRule ^.*$ - [NC,L] RewriteRule ^.*$ createthumb.php?path=%{REQUEST_URI} [NC,L] 複製代碼 2、createthumb.php檔案： define('WWW_PATH', dirname(dirname(__FILE__))); // 網站www目錄 require(WWW_PATH.'/PicThumb.class.php'); // include PicThumb.class.php require(WWW_PATH.'/ThumbConfig.php'); // include ThumbConfig.php $logfile = WWW_PATH.'/createthumb.log'; // 記錄檔 $source_path = WWW_PATH.'/upload/'; // 原路徑 $dest_path = WWW_PATH.'/supload/'; // 目標路徑 $path = isset($_GET['path'])? $_GET['path'] : ''; // 訪問的圖片URL // 檢查path if(!$path){ exit(); } // 擷取圖片URI $relative_url = str_replace($dest_path, '', WWW_PATH.$path); // 擷取type $type = substr($relative_url, 0, strpos($relative_url, '/')); // 擷取config $config = isset($thumb_config[$type])? $thumb_config[$type] : ''; // 檢查config if(!$config || !isset($config['fromdir'])){ exit(); } // 原圖檔案 $source = str_replace('/'.$type.'/', '/'.$config['fromdir'].'/', $source_path.$relative_url); // 目標檔案 $dest = $dest_path.$relative_url; // 建立縮圖 $obj = new PicThumb($logfile); $obj->set_config($config); if($obj->create_thumb($source, $dest)){ ob_clean(); header('content-type:'.mime_content_type($dest)); exit(file_get_contents($dest)); } ?> 複製代碼 3、ThumbConfig.php檔案： $thumb_config = array( 'news' => array( 'fromdir' => 'news', // 來源目錄 'type' => 'fit', 'width' => 100, 'height' => 100, 'bgcolor' => '#FF0000' ), 'news_1' => array( 'fromdir' => 'news', 'type' => 'fit', 'width' => 200, 'height' => 200, 'bgcolor' => '#FFFF00' ), 'article' => array( 'fromdir' => 'article', 'type' => 'crop', 'width' => 250, 'height' => 250, 'watermark' => WWW_PATH.'/supload/watermark.png' ) ); ?> 複製代碼 訪問以下三個路徑後會按config自動產生縮圖： http://localhost/supload/news/2013/07/21/1.jpg http://localhost/supload/news_1/2013/07/21/1.jpg http://localhost/supload/article/2013/07/21/2.jpg

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