PHP正則採集圖片並儲存

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<?php/**功能：php完美實現下載遠程圖片儲存到本地*參數：檔案url,儲存檔案目錄,儲存檔案名稱，使用的下載方式*當儲存檔案名稱為空白時則使用遠程檔案原來的名稱*/function getImage($url, $save_dir = ‘‘, $filename = ‘‘, $type = 0){    if (trim($url) == ‘‘) {        return array(            ‘file_name‘ => ‘‘,            ‘save_path‘ => ‘‘,            ‘error‘ => 1);    }    if (trim($save_dir) == ‘‘) {        $save_dir = ‘./‘;    }    if (trim($filename) == ‘‘) { //儲存檔案名稱        $ext = strrchr($url, ‘.‘);        if ($ext != ‘.gif‘ && $ext != ‘.jpg‘) {            return array(                ‘file_name‘ => ‘‘,                ‘save_path‘ => ‘‘,                ‘error‘ => 3);        }        $filename = time() . $ext;    }    if (0 !== strrpos($save_dir, ‘/‘)) {        $save_dir .= ‘/‘;    }    //建立儲存目錄    if (!file_exists($save_dir) && !mkdir($save_dir, 0777, true)) {        return array(            ‘file_name‘ => ‘‘,            ‘save_path‘ => ‘‘,            ‘error‘ => 5);    }    //擷取遠程檔案所採用的方法    if ($type) {        $ch = curl_init();        $timeout = 5;        curl_setopt($ch, CURLOPT_URL, $url);        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);        $img = curl_exec($ch);        curl_close($ch);    } else {        ob_start();        readfile($url);        $img = ob_get_contents();        ob_end_clean();    }    //$size=strlen($img);    //檔案大小    $fp2 = @fopen($save_dir . $filename, ‘a‘);    fwrite($fp2, $img);    fclose($fp2);    unset($img, $url);    return array(        ‘file_name‘ => $filename,        ‘save_path‘ => $save_dir . $filename,        ‘error‘ => 0);}$url=‘http://old.pep.com.cn/xxsx/jszx/tbjxzy/xs3bjxzy/wenzi/201504/W020150417332945629042.jpg‘;getImage($url, $save_dir = ‘./getimg/‘, $filename = ‘‘, $type = 0);?>

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PHP正則採集圖片並儲存