70 PHP Tutorials at Its best

1. Introduction To PHP
2. Using HTML Forms With PHP
3. Adding records to a MySQL database using PHP
4. Setting Up Apache, PHP & MySQL On Windows
5. Creating a PHP Looping Statement
6. Introduction to PHP Variables
7. Using PHP Operators
8. Using Variable Referencing
9. Working with PHP Datatypes
10. File I/O in PHP
11. What is Object Oriented Programming (OOP)?
12. Convert Images to Thumbnails Images Using PHP
    
13. PHP by example, Part I
14. PHP By Example, Part 2
15. Sorting an Array in PHP
16. Putting PHP & MySQL To Work
17. Generate Random Quotes with PHP
18. How To Upload Files Using PHP
19. A Class for Validating and Formatting Dates
20. How Many Users Online?
21. How to Show Random Images from a Folder
22. Replacing Text in a MySQL Database Using PHP
23. How To Backup Your MySQL Database With PHP
24. Google Suggest With PHP
25. Track Your Visitors, Using PHP
26. PHP and Cookies, A Good Mix!
    
27. Control Structures and While Loops
28. Hightlight or Censor Words in PHP
29. How to make a Hit Counter with PHP
30. Basic Control Structures in PHP
31. Developing a Login System with PHP and MySQL
32. Upload Files to MySQL using PHP Tutorial
33. PHP and MySql with PayPal
34. Inserting An Array Into A Database
    
35. Calculating Difference Between Two Dates Using PHP
36. Programmatically Deciding Which Database to Connect in PHP
37. Saving PHP Session Data to a Database
38. Using Control Structures and Foreach Loops in PHP
39. Storing Images in a Database
40. Displaying Load Time with PHP
41. Creating and Accessing MySQL Data with PHP
42. Developing a Login System with PHP and MySQL
43. Site Personalization With PHP
44. How to Handle a Many-to-Many Relationship with PHP and MySQL
45. Using PHP Objects to Access Your Database Tables (Part 1)
46. Using PHP Objects to Access Your Database Tables (Part 2)
47. The Explode Function, Split a String by String
48. PHP Caching to Speed up Dynamically Generated Sites
49. How to Setup and use Printing Variables in PHP
50. Creating an Image Gallery with PHP
51. Anti-Automated Registration
52. Creating a Drop Down Selection with an Array
53. Customizing the PHP Error Handler
54. Checking Form Field Integrity within PHP
55. Password Protection and File Inclusion With PHP
56. How to Setup Variable Scope and Global Declarations
57. Creating Dynamic Text Images
58. Perfect PHP Pagination
59. Image Manipulation with PHP The GD Libraries
60. Simplified Image Resizing with PHP
61. Verify a User’s Email Address Using PHP –
62. Storing Hierarchical Data in a Database –
63. Managing Users with PHP Sessions and MySQL –
64. Generate PDFs with PHP
65. Advanced email in PHP
66. Creating a Credit Card Validation Class With PHP
67. Using Regular Expressions in PHP
68. Generating Spreadsheets with PHP and PEAR
69. Getting Started with PEAR – PHP’s Low Hanging Fruit
70. PHP Basic Pagination

Few CAPTCHA scripts that save your website!!!

1. reCAPTCHA
reCAPTCHA is a free service which helps prevent automated abuse of your site (such as comment spam or bogus registrations) by using a CAPTCHA to ensure that only humans perform certain actions.

2. Securimage
Securimage is an open-source free PHP CAPTCHA script for generating complex images and CAPTCHA codes to protect forms from spam and abuse. It can be easily added into existing forms on your website to provide protection from spam bots. It can run on most any webserver as long as you have PHP installed, and GD support within PHP. Securimage does everything from generate complicated CAPTCHA images to making sure the code the user entered was correct.

3. WebSpamProtect
WebSpamProtect allows you to instantly add verification image (CAPTCHA) to your web site and protect your forms against spam robots. In order to protect your web form, this system requires that you install a small piece of code onto your web page. The code requires that your web site support PHP, Perl, ASP or ASP.NET. Basic plan is free but you can buy a Premium, Advanced or Professional paln with a little expense.

4. Cryptographp
Cryptographp is a PHP script for generate captchas. Cryptographp limit the robots bombarding spams and automating the forms: spaces members subscriptions, guestbooks, forums… This script is free and does not use any database. It is compatible with PHP >= 4.3.0. Cryptographp also exists into plugins for WordPress, wpMu for WordPress, Symfony and Guppy.

5. CAPTCHA-Service
captchas.net provides CAPTCHA images and audio files you can use in html-forms. To use this technology, your web pages have to be generated dynamically in any programming language PHP, ASP, Perl, Python, JSP, Ruby.

6. WP Captcha-Free
WP Captcha-Free blocks comment spam by using a combination of time-based hash (a.k.a. Time Based Tokens, TBT) and JavaScript (AJAX). When a comment is posted the plugin validates a hash based on time (and some other parameters). Comments posted via automated means will not have a hash or will have an expired hash and will be rejected. Unlike using a captcha, this does not place any burden on the commenter.

7. ProtectWebForm
ProtectWebForm is a service to add CAPTCHA images and audio files on your website. You have to create an account, generate your CAPTCHA type with all the desired parameters and include it on your web pages.You can also use it on your WordPress template with this plugin.

8. ProtectWebForm
OpenCaptcha is a simple web service which requires no special configurations or modules. Basic installation is cut-and-paste, and requires no ability to program image manipuation scripts. New fonts, image algorithms, and distortions applied weekly.

9. Form-to-email script protected by Captcha
This form-to-email script is intended to collect data from an HTML form and send it to a specified email address using a CAPTCHA script to stop spam. It works with any kind of HTML form and you can use it multiple times on your pages.

10. freeCap
freeCap is a GPL CAPTCHA script to stop spam. It has been used on any form on any kind of website. It does require some knowledge of PHP to install, though there are several captcha plugins for forum and blog software listed below.

Top 10 tips for high link popularity

Link popularity has become an important factor in the ranking algorithms of most search engines. If many quality web sites link to your site, you’ll have a good position in the search engines.

10. Cross-link your sites

An easy way to improve your link popularity is to add a link from your own popular web site to a less popular site of your own.

However, it’s very important that one site is not only a duplicate of the other and that both sites are related to each other. For example, CheckYourLinkPopularity.com .