Course Intermediate  11332

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Course Advanced  17635

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Course Advanced  11348

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

Course Introduction：Example of php verification code (GD library generates verification code)

2016-07-25 comment 0  1123

Course Introduction：Example of generating verification code by php GD library

2016-07-25 comment 0  837

Course Introduction：access2003 verification code: access2003 verification code PHP generates a verification code with a snowflake background: <?php session_start(); session_register("login_check_number"); //I saw the verification code effect on chianren last night, so I thought about it and used PHP's GD library has completed similar functions //Generate the background first, and then put the generated verification code $img_height=120; //First define the length and width of the image $img_width=40; if($HTTP_GET_VARS["act"]

2016-07-29 comment 0  1068

Course Introduction：PHP and XML: How to generate and verify verification code. Verification code is a technology used to verify user identity. It is commonly used in website login, registration, form submission and other scenarios. This article will introduce how to use PHP and XML to realize the verification code generation and verification functions. Generate verification code First, we need to generate an image containing random characters as a verification code. We will use PHP's GD library to create the image and draw the verification code string on the image. &lt;?phpsession_start();

2023-08-07 comment 0  999

Course Introduction：PHP realizes the generation and verification of image verification codes. In website development, in order to prevent malicious machine attacks or automatic registration, we often use image verification codes for verification. This article will introduce how to use PHP to generate and verify image verification codes, and give specific code examples. Generating an image verification code The key to generating an image verification code is to generate a random verification code string and draw it onto the image. The following is a sample code that generates an image verification code: &lt;?phpsession_start();//

2023-09-13 comment 0  976