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Home :: PHP :: Tips and Tutorials :: Security
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  Total: 37    Displaying: 1 - 20 Pages:  1 2

   PHP random password generator   Hits: 525 

 
PHP password generator is a complete, working password generation function for PHP. It allows the developer to customize the password: set its length and strength.


Free   Version: n/a   Platform(s): n/a   Updated: Wed Oct  3 2007

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   Silentum PasswordGen   Hits: 2216 

 
Silentum PasswordGen is an excellent password generator tool if you need passwords for email clients, message boards, IM programs, or any other protected pages. It has various options, including choosing whether to use lowercase/uppercase letters, numbers, symbols, and spaces, in any combination you desire. Its character limits extend between 5 and 50, and you can generate 1 to 5 passwords at a time. You can use this for your own personal use, or place it on your site to allow visitors to generate their own passwords. It runs entirely on a single PHP file, and doesn't require any MySQL.


Free   Version: 3.1.0   Platform(s): linux, windows, freebsd, osx, sun   Updated: Wed Apr 16 2008

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   PHP CAPTCHA Tutorial   Hits: 181 

 
Captcha stands for "Completely Automated Public Turing test to tell Computers and Humans Apart" and is used for telling humans and computers apart. Here is a tutorial that will teach you how to create your own PHP CAPTCHA.


Free   Version: n/a   Platform(s): n/a   Updated: Sun Mar 16 2008

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    How to Spam-Proofing Your Website   Hits: 156 

 
Spam-Proofing Your Website Anyone who operates their own website knows that you need to provide forms in your site for visitors to contact you. The big challenge is providing easy form access to your visitors, without letting SPAM flood your email inbox or database. The techniques described in this article tell you how to reduce the amount of SPAM.


Free   Version: 1.0   Platform(s): linux, windows, freebsd, osx, sun   Updated: Sun Jan 27 2008

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   Minimal Sanitation Techniques   Hits: 107 

 
This tutorial will show you sanitation techiques used by the pros so that your scripts will be secure, and resistant to any attacks.


Free   Version: 1   Platform(s): linux, windows, freebsd, osx, sun   Updated: Mon Feb 11 2008

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   Developing rock-solid code in PHP   Hits: 658 

 
This tutorial is intended for both amateur and professional PHP programmers who want to design and write quality functions. To complete this tutorial, you must have a basic level of working knowledge with PHP, and know how to define functions.This will help u strengthen your codes


Free   Version: 1.0   Platform(s): linux, windows, freebsd, osx, sun   Updated: Wed Jul 18 2007

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   Math Captcha image validation   Hits: 2638 

 
With all the Captcha decoders these days, its impossible to build a solid Captcha image validator with a string. The solution? Have a captcha that asks simple math addition questions! Decoders are not very good at breaking these. This tutorial will show you how to make a basic math CAPTCHA validtion form. This requires that you have the GD library for PHP installed to work.


Free   Version: n/a   Platform(s): linux, freebsd   Updated: Tue Feb 20 2007

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   Redirect http:// to https://   Hits: 1065 

 
Redirection of addresses to your secure pages(SSL). This tutorial will guide to redirect user request from http:// to your SSL HTTPS:// with no scripting to pages. One script and it works for all your pages.


Free   Version: n/a   Platform(s): linux, windows, freebsd   Updated: Thu Apr 12 2007

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   How to restrict visitor access to your web site   Hits: 878 

 
Learn by example the proper ways to apply restrictions on your web site.


Free   Version: n/a   Platform(s): linux, windows, freebsd, osx, sun   Updated: Thu Mar 22 2007

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   Validate credit card numbers   Hits: 687 

 
An easy example on how to validate credit card numbers using a small and handy PHP script.


Free   Version: n/a   Platform(s): linux, windows, freebsd, osx   Updated: Mon Mar  5 2007

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   PHP Form image verification   Hits: 7789 

 
When you build a form in your web page, you are susceptible to being spamed by automated systems. In order to make sure that the one who completes the form is human, you can use the system with image verification.


Free   Version: n/a   Platform(s): linux, windows, freebsd, osx, sun   Updated: Tue Jan  2 2007

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   Hotlink Protection with PHP   Hits: 1035 

 
Hotlinking is when another website links directly to one or more of your images or multimedia files and includes it on their web page. Not only is this theft of your intellectual property, but further more, you are paying for the bandwidth used by that site. Which can result in a problem with your budget.<BR /><BR /> The most common way to prevent others from hotlinking your content is Apache's mod_rewrite. While this a solution that free available to use, there are a couple drawbacks. One being, that Apache has to be configured to use mod_rewrite (--enable-rewrite). Another one being, that for a lot of people writing regular expressions is not the most easiest thing to do.<BR /><BR /> Of course there are commercial solutions to the problem. Probably the most common one is cPanel. An administration interface for webserver, which let's you create all the necessary items for your hotlink protection with a matter of clicks, in a matter of seconds.


Free   Version: n/a   Platform(s): linux, windows, freebsd, osx, sun   Updated: Thu Jan  4 2007

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   MD5 Encryption in PHP   Hits: 1102 

 
Md5 is a very easy way to encrypt any string data. Following example take and encrypts a string. Remember that you could not dencrypt any data after encryption. .


Free   Version: n/a   Platform(s): n/a   Updated: Tue Sep 12 2006

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   Creating a CAPTCHA with PHP   Hits: 4402 

 
In this tutorial, you will learn how to creat a CAPTCHA utilizing the graphics capabilities of PHP.


Free   Version: n/a   Platform(s): linux, windows, freebsd, osx, sun   Updated: Thu Jun  8 2006

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   Using mod_rewrite To Your Advantage   Hits: 767 

 
Learn how to use mod_rewrite to your advantage to take some overhead off your PHP script and validate Query Strings faster and more securely than any hard coded PHP script.


Free   Version: 1.0   Platform(s): linux, windows, freebsd   Updated: Mon Jun 12 2006

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   Creating a Random Passowrd   Hits: 710 

 
This code snippet allows you to call the random password function and get a random password returned to your script. It is possible to customize the length of the password.


Free   Version: n/a   Platform(s): linux, windows, freebsd, sun   Updated: Mon Apr  3 2006

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   Getting Started With Mcrypt   Hits: 2062 

 
Mcrypt is a wonderful set of library functions for encrypting, decrypting, and hashing data.


Free   Version: n/a   Platform(s): n/a   Updated: Sat Feb 11 2006

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   Password protect your webpages with PHP Sessions and MYSQL   Hits: 3620 

 
This tutorial will show you how to password protect your websites / webpages using PHP Sessions and Mysql.


Free   Version: 1   Platform(s): linux, windows, freebsd, osx, sun   Updated: Wed Jan  4 2006

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   Create a secure password   Hits: 1078 

 
What is a secure password? This password has a minimum number of 8 characters, 1 number, 1 special character, 1 mutation, 1 small alphabetic character, 1 great alphabetic character. This function will help you to create a secure password.


Free   Version: 1.2   Platform(s): linux, windows, freebsd, osx, sun   Updated: Thu Sep  8 2005

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   AutoStumbler   Hits: 1000 

 
There is a new community tool called StumbleUpon which makes web browsing seem like channel surfing with a television. This little piece of HTML tricks StumbleUpon into automatically voting a page up. You need to have StumbleUpon installed for this to work. This is meant as a demonstration of a vulnerability which affects several community sites, not only StumbleUpon.


Free   Version: n/a   Platform(s): n/a   Updated: Sun Jun 19 2005

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  Total: 37    Displaying: 1 - 20 Pages:  1 2

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