gd

问题 How can I write Arabic or Persian characters to an image using PHP GD library? i.e. "احسان" 回答1: Use this function in order to pass text to imagettftext <?php function revUni($text) { $wordsArray = explode(" ", $text); $rtlCompleteText=''; for ($i = sizeOf($wordsArray); $i > -1; $i = $i-1) { //$lettersArray = explode("|", str_replace(";|", ";", $wordsArray[$i])); $lettersArray = explode(";", $wordsArray[$i]); $rtlWord=''; for ($k = sizeOf($lettersArray); $k > -1; $k = $k-1) { if (strlen(

问题 i am using this code to create watermark. $image = '1.jpg'; $overlay = 'stamp.png'; $opacity = "20"; if (!file_exists($image)) { die("Image does not exist."); } // Set offset from bottom-right corner $w_offset = 0; $h_offset = 100; $extension = strtolower(substr($image, strrpos($image, ".") + 1)); // Load image from file switch ($extension) { case 'jpg': $background = imagecreatefromjpeg($image); break; case 'jpeg': $background = imagecreatefromjpeg($image); break; case 'png': $background =

问题 I tried something like this but it just makes the background of the image white, not necessarily the alpha of the image. I wanted to just upload everything as jpg's so if i could somehow "flatten" a png image with some transparently to default it to just be white so i can use it as a jpg instead. Appreciate any help. Thanks. $old = imagecreatefrompng($upload); $background = imagecolorallocate($old,255,255,255); imagefill($old, 0, 0, $background); imagealphablending($old, false);

问题 I tried something like this but it just makes the background of the image white, not necessarily the alpha of the image. I wanted to just upload everything as jpg's so if i could somehow "flatten" a png image with some transparently to default it to just be white so i can use it as a jpg instead. Appreciate any help. Thanks. $old = imagecreatefrompng($upload); $background = imagecolorallocate($old,255,255,255); imagefill($old, 0, 0, $background); imagealphablending($old, false);

问题 I'm using a solution for assembling image files to a zip and streaming it to browser/Flex application. (ZipStream by Paul Duncan, http://pablotron.org/software/zipstream-php/). Just loading the image files and compressing them works fine. Here's the core for compressing a file: // Reading the file and converting to string data $stringdata = file_get_contents($imagefile); // Compressing the string data $zdata = gzdeflate($stringdata ); My problem is that I want to process the image using GD

问题 Merging two images with transparent sections produces the following composite image: I'm wondering why the transparent section of the image I've overlayed onto the green background shows up as such? Anyone? $base = imagecreatefrompng('application/assets/images/vel1_bg.png'); imagealphablending($base, false); imagesavealpha($base, true); list($baseWidth, $baseHeight, $type, $attr) = getimagesize('application/assets/images/vel1_bg.png'); $user_board_items = $this->config->item('user_board_items

问题 when i try to install "GD" (perl -e shell -MCPAN ->(next step) cpan[1]> install GD) on Redhat 6.5 i got the error: -> CPAN.pm: Building L/LD/LDS/GD-2.53.tar.gz UNRECOVERABLE ERROR Could not find gdlib-config in the search path. Please install libgd 2.0.28 or higher. If you want to try to compile anyway, please rerun this script with the option --ignore_missing_gd. Warning: No success on command[/usr/bin/perl Makefile.PL INSTALLDIRS=site] CPAN: YAML loaded ok (v0.90) LDS/GD-2.53.tar.gz /usr

问题 when i try to install "GD" (perl -e shell -MCPAN ->(next step) cpan[1]> install GD) on Redhat 6.5 i got the error: -> CPAN.pm: Building L/LD/LDS/GD-2.53.tar.gz UNRECOVERABLE ERROR Could not find gdlib-config in the search path. Please install libgd 2.0.28 or higher. If you want to try to compile anyway, please rerun this script with the option --ignore_missing_gd. Warning: No success on command[/usr/bin/perl Makefile.PL INSTALLDIRS=site] CPAN: YAML loaded ok (v0.90) LDS/GD-2.53.tar.gz /usr

问题 Finally I had to recompile PHP with --enable-gd-jis-conv . However the text display is wrong, in Japanese. $text = '夏の天気'; $fontfile = '/usr/share/fonts/japanese/TrueType/sazanami-mincho.ttf'; return imagettftext ($image, $size, $angle, $x, $y, $color, $fontfile, $text); But different kanji (Japanese characters) are displayed instead (very different, looks like Chinese). Could it be an encoding issue? Using PHP 5.3.3 on RHEL 5.4. 回答1: Well, japanese as a multibyte encoded language has quite a

问题 I would like all images dropped in a directory to be copied into a separate directory as thumbnails that i can then view on my site. Right now i'm researching phpthumb, but have also downloaded wideimage and zen photo. Thanks if you can find an exact duplicate to this, near matches may also be helpful. Here is the script that only copies a single files: require_once '../ThumbLib.inc.php'; //include the thumb library $thumb = PhpThumbFactory::create('test.jpg'); //create a new image from the