Php Random Image Script

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 ...

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 ...

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 ...

Compared with Vm,docker, it has obvious advantages in light weight, configuration complexity and resource utilization. With the maturing of Docker technology, more and more enterprises begin to consider improving their IT system through Docker. This article enumerates some Docker practical application scenes, in order to be able to play the role of the trigger, to help us to use Docker more conveniently. Applications packaged with packages made of RPM, gems, and so on may be clear, each package depends on which version of the library, often need to be explicitly written in ...

"Guide" Xu Hanbin has been in Alibaba and Tencent engaged in more than 4 years of technical research and development work, responsible for the daily request over billion web system upgrades and refactoring, at present in Xiaoman technology entrepreneurship, engaged in SaaS service technology construction. The electric dealer's second kill and buys, to us, is not a strange thing. However, from a technical standpoint, this is a great test for the web system. When a web system receives tens or even more requests in a second, system optimization and stability are critical. This time we will focus on the second kill and snapping of the technology implementation and ...

The intermediary transaction SEO diagnoses Taobao guest stationmaster buys cloud host technology Hall DEDECMS system it Plato's lecture content dedecms System application skill, by our Dedecms the developer to lecture, the master lectures really very good, hoped some friends and has seen the all to see, I put the IT Plato lectures content, the purpose of convenience we have not seen the webmaster, I hope everyone likes! Thank you! If convenient, all the QQ Group window open for full screen, that originally I today is to comprehensively tell Dede some intermediate application ...

Page refactoring engineers have a special position in the Web research and development world, and his basic skill is to restore the design concept. The single Foundation is not enough, still need to focus on forward-looking web technology, participate in page dynamic design, sometimes even need to deal with some basic visual design work, and some refactoring engineers may also have server-side development capabilities or canvas, SVG and other graphics processing capabilities. 　　Abroad, this position is generally called Web Designer, but we prefer to call ourselves "page Aberdeen". If you have done page related ...