PHP using the GD library for remote image download example, _php tutorial

Source: Internet
Author: User
Tags imagejpeg

The use of the GD Library in PHP for remote image download instances,


Because today want to write a remote download pictures of the class, in advance to write a PHP GD library to achieve remote image download function, of course, curl to achieve better, PHP GD library remote image download function mainly using the GD library two function imagecreatefromxxx () Used to generate picture functions and imagexxx functions, XXX represents the extension of different pictures, so you have to find a way to get the extension of the remote image, with the following PHP code:

<?phpheader ("content-type:text/html; Charset=utf-8 "); if (!empty ($_post[' submit ')) {$url = $_post[' url '); $pictureName = $_post[' Picturename ']; $img = Getpicture ($url, $ Picturename); Echo '
'; }function getpicture ($url, $pictureName) {if ($url = = "") return false; Gets the image extension $info = getimagesize ($url); $mime = $info [' MIME ']; $type = substr (STRRCHR ($mime, '/'), 1); Different picture types choose different picture generation and save function switch ($type) {case ' jpeg ': $img _create_func = ' imagecreatefromjpeg '; $img _save_func = ' imagejpeg '; $new _img_ext = ' jpg '; Break Case ' png ': $img _create_func = ' imagecreatefrompng '; $img _save_func = ' imagepng '; $new _img_ext = ' png '; Break Case ' BMP ': $img _create_func = ' imagecreatefrombmp '; $img _save_func = ' imagebmp '; $new _img_ext = ' bmp '; Break Case ' gif ': $img _create_func = ' imagecreatefromgif '; $img _save_func = ' imagegif '; $new _img_ext = ' gif '; Break Case ' vnd.wap.wbmp ': $img _create_func = ' imagecreatefromwbmp '; $img _save_func = ' imagewbmp '; $new _img_ext = ' bmp '; Break Case ' XBM ': $img _create_func = ' IMAGECREATEFROMXBM '; $img _save_func = ' IMAGEXBM '; $new _img_ext = ' XBM '; Break Default: $img _create_func = ' imagecreatefromjpeg '; $img _save_func = ' imagejpeg '; $new _img_ext = ' jpg '; } if ($pictureName = = "") {$pictureName = time (). ". {$new _img_ext} "; }else{$pictureName = $pictureName. ". {$new _img_ext} "; } $src _im = $img _create_func ($url); Create a new picture by URL $img _save_func ($src _im, $pictureName); Output file to file return $pictureName;} ?>

Running results such as: (Picture automatically saved in the current file directory, do not understand can leave a message)


http://www.bkjia.com/PHPjc/998565.html www.bkjia.com true http://www.bkjia.com/PHPjc/998565.html techarticle PHP using the GD library to achieve remote picture download instance, because today want to write a remote download picture class, in advance to write a PHP GD library to achieve remote image download function, of course, curl to achieve better ...

  • Contact Us

    The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

    If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

    A Free Trial That Lets You Build Big!

    Start building with 50+ products and up to 12 months usage for Elastic Compute Service

    • Sales Support

      1 on 1 presale consultation

    • After-Sales Support

      24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.