Php Header Image

Just install some third-party library files and have a certain degree of geometric knowledge, you can use PHP to create and process images. Creating a dynamic image with PHP is fairly easy. Below, I will detail how to achieve. Before using the basic image creation function, you need to install the GD library file. If you want to use JPEG-related image creation functions, you also need to install jpeg-6b, and you must install t1lib if you want to use Type 1 fonts in your images. In the establishment of the image creation environment, but also need to do some quasi ...

Intermediary transaction SEO diagnosis Taobao Guest Cloud mainframe technology hall Google robot-what a magical dream of the boat! He knows our soul and every part. 　　Maybe he's not looking for something unique; he has read about billions of other sites (although we also share our data with other search engine bots), but tonight, as a website and Google bots, we will really know each other. I know it's never been a good idea to be overly analytical on a first date. We will pass a series of articles, a little bit ...

In the php tutorial to generate high-definition images must be used imagecreatetruecolor function to do, see below its usage imagecreatetruecolor (int x, int y) to create a black image of size and y, and its examples did not use Instead of adding the background color to the generated pixel, a color of the drawing is created directly using imagecolorallocate () * / / / Create image $ im = imagecreatetruecolor (...

In the Web application is often used to generate pictures of this function, in the PHP tutorial to create pictures need to support the GD library to create graphics, with this graphic function, we can easily generate thumbnails, verification code, to add watermarks and so on. In PHP to install the GD library to normal operation to create a picture function, the following methods, in the win system, find php.ini put; Extension=php_gd2.dll front ";" Go, and back up Apache OK. Here we look at the example of PHP ...

PHP Tutorials use Phpexcel to generate an Excel document instance//ini_set ("Display_errors", 1);//whether to display an error message//ini_set (' include_path ', Ini_get (' Include_ Path '). ' Require_once ("./1.7.2/classes/phpexcel.php"); Require_o ...

In PHP to generate a CAPTCHA image is quite simple, because in PHP for us to provide a graphics Gd.dll library, to enable the GD graphics library we just php.ini in the PHP-GD front; Method a $authnum = '; $ychar = "0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z&qu ...

Three PHP tutorial Chinese verification code generation and transfer method Generate Chinese verification code in PHP must be generated and generated verification verification code is not the same operation, because gd function only accepts utf8 format encoded text, so use php to generate Chinese verification Before the first code to be encoded conversion, operation iconph icon can be an instance of PHP. * / $ ch_str = "Chinese characters you want to generate Chinese characters"; $ str = array (); for ($ i = 0; $ i <strlen ($ ch_s ...

Php tutorial pattern verification code generation code and include ajax verification example application previously written verification code program is to provide the source code, but did not really figure verification code generated to verify the instance, this time we have a complete example of PHP validation It's There are 3 files: authcode.php ----- verification code generation php file authcode.html ----- front display page dealauthcode.php ----- ajax submitted to the background processing to determine the verification code is correct Processing page ...

image mask * * @copyright ugia.cn * / function imagemask (& $ im, $ x1, $ y1, $ x2, $ y2, $ deep) {for ($ x = $ x1; $ x <$ x2; $ x + = $ deep) {& nbs ...

Php tutorial pattern verification code generation code and include ajax verification example application previously written verification code program is to provide the source code, but did not really figure verification code generated to verify the instance, this time we have a complete example of PHP validation It's There are 3 files: authcode.php ----- verification code generation php file authcode.html ----- front display page dealauthcode.php ----- ajax submitted to the background processing to determine the verification code is correct Processing page ...