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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 ...
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 ...
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 ...
HTML Invoke PHP Tutorial validator <!doctype HTML Public "-//W3C//DTD XHTML 1.0 transitional//en" "http://www.jzread.com/tr/xhtml1/ Dtd/xhtml1-transitional.dtd "> <html lang=" En-us&q ...
PHP generated Chinese authentication code garbled problem solving//will be processed Chinese characters, first from the UTF8 of Chinese characters into an HTML entity form to reuse. Example code://ini_set (' jis-mapped Japanese Font Support ', false); $pic =imagecreate (250,30); $black =imagecolorallocate ($pic, 0,0,0); $white =imagecoloral ...
The PHP tutorial saves the uploaded map to the database tutorial and displays the code//Connect to database $errmsg = ""; if (! @mysql tutorial _connect ("localhost", "root", "")) {$errmsg = "cant c ...
Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall after we installed the Linux Server Web environment a key installation package Lanmp, There may be a lot of doubt there is the use of the process of the problem, the following for you to sum up a few more common, if there are other questions, you can go to the Wdlinux forum to find relevant tutorials. 1. About bound Fields ...
Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall after we installed the Linux Server Web environment a key installation package Lanmp, There may be a lot of doubt there is the use of the process of the problem, the following for you to sum up a few more common, if there are other questions, you can go to the Wdlinux forum to find relevant tutorials. 1. Add APA ...
Read_exif_data (PHP4 >= 4.0.1) read_exif_data---&http://www.aliyun.com/zixun/aggregation/37954.html "> nbsp; To read EXIF header syntax from a JPEG graphics file: Array read_exif_data (string filename) Description: Read_exi ...
The .htaccess file allows us to modify some server settings for a particular directory and its subdirectories. Although this type of configuration is best handled in the section of the server's own configuration file, sometimes we do not have permission to access this configuration file at all, especially when We are on a shared hosting host, and most shared hosting providers only allow us to change server behavior in .htaccess. .htaccess file is a simple text file, note the "." before the file name is very important, we can use your favorite text editor ...
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