Today we're going to look at the PHP captcha, we do it with a simple digital captcha, and first write a code to generate the CAPTCHA:
code is as follows
nbs P;
//randomly generate a 4-digit number validation code $num = ""; ; for ($i =0 $i // 4-bit Authenticode can also generate directly with Rand (1000,9999)///write the generated captcha to session, and the Prepare validation page uses the Session_Start ()
Today we're going to look at the PHP code, and we're going to do it with a simple digital captcha, first of all, to write a code that generates a CAPTCHA:
The code is as follows
Copy Code
Random generation of a 4-digit number verification code $num = ""; For ($i =0 $i 4-bit Authenticode can also be generated directly with Rand (1000,9999) Writes the generated validation code to the session, and the Prepare validation pag
Today, after reloading the system, I need to install the development tools, I use the development tools are visual Studio2008 and SQL Server2008r2, when the installation of the visual Studio2008 in the database when the problem occurs:Workaround:Install patches. Download installationhttp://www.microsoft.com/zh-CN/download/details.aspx?displaylang=enid=13276The rule "earlier versions of Microsoft Visual Studio 2008" failed. An earlier version of
Microsoft's recruitment philosophy-Five Core qualities of being a Microsoft employee (from Microsoft's 360 degree)
Microsoft has been committed to discovering and attracting elites in the industry. In the early days of its establishment, Bill Gates and Steve Ballmer personally participated in the recruitment of all new employees. Their philosophy of employing people and recruitment philosophy were as foll
Has microsoft abandoned Microsoft. Net? Where is the future of Net technology?-On the Microsoft technical line and. net technical line
Winform: The advantage is that it is easy to learn, but the disadvantage is that the interface is not easy to understand and the interface adaptability is poor.
Wpf: Microsoft integrate
Failed fromProgramSet D: \ windows \ Microsoft. NET \ framework \ v3.5 \ Microsoft. Build. Tasks. DLL to load the task "Microsoft. Build. Tasks. Delete ". The file cannot be loaded or the Assembly "file: // D: \ windows \ Microsoft. NET \ framework \ v3.5 \ Microsoft. Build.
Issue Summary: This article contains frequently asked questions about Microsoft. NET and the Microsoft. NET Framework.
Directory
Conceptual issues
Run-time technical issues
Terms
Assembly
Application Deployment and Isolation
Garbage collection
Remote processing
Interoperability
Security
Conceptual issues
What is. NET?
What is a. NET framework?
Does the. NET framework apply only to users who create Web
1. Client problem: The browser prevents the Web site from sending cookies to the browser, resulting in the verification code does not appear or the verification code is always incorrect;
Workaround: Open browser options → privacy → move the privacy
Reprint: http://www.cnblogs.com/zhijianliutang/p/4076587.htmlThis is the last article of the Microsoft Series Mining algorithm, after the completion of this article, Microsoft in Business intelligence this piece of the series of mining algorithms we have completed, this series covers the Microsoft in Business Intelligence (BI) module system can provide all the mi
Excel|visual|word| Programming Microsoft Word 2002 and Excel 2002 programming using Microsoft Visual C #
Kerry Loynd and Siew-moi Khor
Microsoft Corporation
October 2002
Apply to:
Microsoft®office XP
Microsoft Visual c#™
Summary: Learn about COM interoperability between
Solution | essence | Microsoft Source: http://bbs.yesky.com/
First, asp.net
1, my ASPX program, why always put the source code in the browser page display, consult Master!
The source program is as follows:
Controltovalidate=txtname errormessage= "requires a user user name. "> *
Runat=server id=txtpword>Value=submit>
A: That's probably because your asp.net didn't fit well. Thank you for using Microsoft prod
Microsoft technical Lecture at Southwest Jiaotong University (club pre-establishment lecture)
Note: You have any questions about the club, suggestions, comments, can be put forward.
Club members to join: Personal profile, contact details, hobbies, expertise, sent to
Sus_web@126.com
Time: April 15, 2005 (3 o'clock in the afternoon---5 o'clock in the afternoon)
Venue: Third floor, one canteen, Rhinoceros PO Campus, Southwest Jiaotong University
The open
Tags: article vs2008 reg knowledge View HTM new research will notObjective This article continues our Microsoft Mining Series algorithm Summary, the previous articles have been related to the main algorithm to do a detailed introduction, I for the convenience of display, specially organized a directory outline: Big Data era: Easy to learn Microsoft Data Mining algorithm summary serial, interested children s
Original: (original) Big Data era: a summary of knowledge points based on Microsoft Case Database Data Mining (Microsoft Naive Bayes algorithm)This article is mainly to continue on the two Microsoft Decision Tree Analysis algorithm and Microsoft Clustering algorithm, the use of a more simple analysis algorithm for the
Microsoft. NET Framework FAQ
Microsoft Corporation
July 2001
Summary:This article contains common questions about Microsoft. NET and the Microsoft. NET Framework. (15 page printed)
Content
Conceptual issues
Run-time Library Technical Issues
Terms
Assembly
Application Deployment and Isolation
Garbage collection
Remote
Microsoft has released a math plug-in for Word 2007 that allows Office users to easily perform a variety of mathematical operations that complement the computing capabilities of Word 2007 itself.Microsoft Math add-in for Word 2007 main features:1. Create functions, equations, or inequalities in plane or stereo form.2. Solving equations or inequalities.3. Calculation of mathematical results.4. Simplifying algebraic expressions.
Note: the. NET Framewor
The important thing about Google leaving China is that Kai-fu Lee left Google.
The important thing that Microsoft left China was Zhang left Microsoft. This is very similar, and a series of events is indicating that Microsoft has started to leave China.
WinXP stopped maintenance, China banned government procurement windows8! and October 31 Windows7 discontinued,
This article is mainly to continue the previous Microsoft Decision tree Analysis algorithm, the use of another analysis algorithm for the target customer group mining, the same use of Microsoft case data for a brief summary.Application Scenario IntroductionIn the previous article, we used the Microsoft Decision tree Analysis algorithm to analyze the customer attr
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