gd

问题 I'm trying to make a simple script that takes lon/lat as an argument and places an dot on a word map image, simple. <?php if(empty($long))$long = 56.946536; if(empty($lat)) $lat = 24.10485; $im = imagecreatefromjpeg("earth_310.jpg"); $red = imagecolorallocate ($im, 255,0,0); $scale_x = imagesx($im); $scale_y = imagesy($im); $pt = getlocationcoords($lat, $long, $scale_x, $scale_y); imagefilledrectangle($im,$pt["x"]-2,$pt["y"]-2,$pt["x"]+2,$pt["y"]+2,$red); header("Content-Type: image/png");

问题 I need to write in RTL mode to imagettftext, 'caus arabic language is in this way: and I don't mean to revert the letters, I mean a css-like RTL (direction:rtl), so aligned-flag on the right... how can I? My easy code: require('static/I18N/Arabic.php'); $Arabic = new I18N_Arabic('Glyphs'); $font="static/ArabicModern-Light.ttf"; $testo=$Arabic->utf8Glyphs($testo); imagettftext($im, 26, 0, 560, 345, $textcolor, $font, "\"".$testo."\""); Thanks! 回答1: After eventually finding and downloading Ar

问题 I'm using PHP to process some image using GD extension. The code structure is rather complicated, images are allocated "deep" in the code and there are many IF's that simply bail-out. The script only processes a single image, and once it writes it to the file it exits. I guess I could use try...catch instead, but I'm interested to know whether it is really needed to call imagedestroy() or PHP's garbage collector would free it when script ends? 回答1: No, you don't need to call this function,

问题 I'm using PHP to process some image using GD extension. The code structure is rather complicated, images are allocated "deep" in the code and there are many IF's that simply bail-out. The script only processes a single image, and once it writes it to the file it exits. I guess I could use try...catch instead, but I'm interested to know whether it is really needed to call imagedestroy() or PHP's garbage collector would free it when script ends? 回答1: No, you don't need to call this function,

问题 I used function imagecopyresampled to cropping image. I tried use file_put_contents and fwrite to write the resized_image to file on hard disk but all attempts were failed. Can I write the resized image to disk instead of using imagejpg to print it out to browser? 回答1: Here's the function signature for imagejpeg(): bool imagejpeg ( resource $image [, string $filename [, int $quality ]] ) So, provide your destination filename as the second argument. (Standard filesystem permission warnings

问题 I newly install Dompdf in Laravel Project via Composer ( composer require barryvdh/laravel-dompdf ). After enter the Command Terminal Reply Following Errors. Problem 1 - dompdf/dompdf v0.7.0 requires ext-gd * -> the requested PHP extension gd is missing from your system. - barryvdh/laravel-dompdf v0.7.0 requires dompdf/dompdf ^0.7 -> satisfiable by dompdf/dompdf[v0.7.0]. - Installation request for barryvdh/laravel-dompdf ^0.7.0 -> satisfiable by barryvdh/laravel-dompdf[v0.7.0]. To enable

问题 I had this problem on a client server $tmp = imagerotate($tmp, $angle, -1); $tmp => bool(false) with no error message displayed $tmp = imagerotate($tmp, $angle, imagecolorallocatealpha($tmp, 0, 0, 0 , 127)); this works fine $tmp => resource(89) of type (gd) What server configuration variable should be changed to make -1 work ? GD Version: bundled (2.1.0 compatible) libPNG Version: 1.2.44 回答1: "What server configuration variable should be changed to make -1 work?" There is no server

问题 I had this problem on a client server $tmp = imagerotate($tmp, $angle, -1); $tmp => bool(false) with no error message displayed $tmp = imagerotate($tmp, $angle, imagecolorallocatealpha($tmp, 0, 0, 0 , 127)); this works fine $tmp => resource(89) of type (gd) What server configuration variable should be changed to make -1 work ? GD Version: bundled (2.1.0 compatible) libPNG Version: 1.2.44 回答1: "What server configuration variable should be changed to make -1 work?" There is no server

问题 I had this problem on a client server $tmp = imagerotate($tmp, $angle, -1); $tmp => bool(false) with no error message displayed $tmp = imagerotate($tmp, $angle, imagecolorallocatealpha($tmp, 0, 0, 0 , 127)); this works fine $tmp => resource(89) of type (gd) What server configuration variable should be changed to make -1 work ? GD Version: bundled (2.1.0 compatible) libPNG Version: 1.2.44 回答1: "What server configuration variable should be changed to make -1 work?" There is no server

问题 Let's say I have the code that looks something like: <?PHP // //... stuff here // $im = imagecreatefromstring( $imageData ); echo "<img src=" . /* what goes here? */ . "alt=\"the image\" />"; // // more stuff here // ?> What do I replace /* what goes here? */ with so my image data will display? Thank you. 回答1: What do I replace /* what goes here? */ with so my image data will display? The location you highlighted is the so called src attribute of the img HTML-tagDocs. The value is a so called