Php verification code Image

Source: Internet
Author: User
Php verification code image here we will introduce the preparation of the image verification code. for the character verification code, refer to the following article:

Click Open link


The image verification code can be created in three steps:

1. create a picture library

2. randomly select an image

3. output image content


The code is as follows (a large number of images are stored in the database to make it easier for me to directly use local images ):

 'Dog', dirname (_ FILE __). '\ pics \ pic1.jpg' => 'modem', dirname (_ FILE __). '\ pics \ pic2.jpg' => 'fish', dirname (_ FILE __). '\ pics \ pic3.jpg' => 'Pi', dirname (_ FILE __). '\ pics \ pic4.jpg' => 'map', dirname (_ FILE __). '\ pics \ pic5.jpg' => 'Donkey ', dirname (_ FILE __). '\ pics \ pic6.jpg' => 'bird', dirname (_ FILE __). '\ pics \ pic7.jpg' => 'Chicken ', dirname (_ FILE __). '\ pics \ pic8.jpg' => 'Duck ', dirname (_ FILE __). '\ pics \ pic9.jpg' => 'Elephant',); $ rnd = rand (); $ img = dirname (_ FILE __). '\ pics \ pic'.w.rnd.'.jpg'; $ _ SESSION ['authcode'] = $ data [$ img]; $ content = file_get_contents ($ img); header ("content-type: image/png "); echo $ content;


Client:

 Input Error';} Exit () ;}?>

Result chart:




Copyright Disclaimer: This article is an original article by the blogger and cannot be reproduced without the permission of the blogger.

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.