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1. Check for valid email address

   PHP regex email valid saved by 305 people
   posted on November 30, -0001 by tylerhall

2. Nice URLS PHP .htaccess

   PHP url php htaccess nice saved by 289 people
   posted on January 14, 2008 by Abe

3. Login Class

   PHP login auth class php saved by 224 people
   posted on November 30, -0001 by tylerhall

4. Download file

   PHP file download saved by 170 people
   posted on July 3, 2006 by luman

5. Anti-SQL Injection Function

   PHP mysql php textmate security sql-injection saved by 160 people
   posted on May 27, 2007 by llbbl

6. MySQL Dump

   PHP mysql backup saved by 154 people
   posted on July 1, 2006 by neogeek

7. RSS Writer Class

   PHP class rss writer feed saved by 148 people
   posted on November 30, -0001 by tylerhall

8. Simple MySQL Search Function

   PHP mysql search saved by 128 people
   posted on July 1, 2006 by neogeek

9. Php xml Parser

   PHP saved by 120 people
   posted on July 17, 2006 by nicolaspar

10. Resize Image

    PHP resize image gd jpg png gif saved by 91 people
    posted on November 30, -0001 by tylerhall

11. US States and World Countries Collection

    PHP states dropdown list countries saved by 79 people
    posted on July 1, 2006 by neogeek

12. Getting real IP address in PHP

    PHP ipAddress saved by 72 people
    posted on January 1, 2008 by mifly

13. Prevent SQL Injection

    PHP sql function injection prevent saved by 70 people
    posted on November 28, 2007 by engel

14. PHP Tag Cloud Based on Word Frequency

    PHP php cloud tag frequency saved by 70 people
    posted on February 27, 2007 by koncept

15. FTP file upload example

    PHP login php file upload FTP chmod saved by 61 people
    posted on August 14, 2006 by hxseven

16. Thumbs on fly

    PHP image thumbs saved by 60 people
    posted on June 29, 2006 by luman

17. ckeckMail

    PHP email mail check validation saved by 58 people
    posted on June 28, 2006 by luman

18. clean user input data ( GET, POST, COOKIE )

    PHP get mysql sql php post input cookie injection clean saved by 57 people
    posted on November 21, 2007 by peteypablonz

19. Calculate the Distance Between Two Coordinates (latitude, longitude)

    PHP math longitude distance latitude saved by 55 people
    posted on April 24, 2007 by tylerhall

20. Create a thumbnail maintaining aspect ratio using GD

    PHP php gd thumbnail aspect saved by 55 people
    posted on August 9, 2006 by mthorn

21. Format Phone Number

    PHP regex phone number format saved by 51 people
    posted on November 30, -0001 by tylerhall

22. MYSQL Database Class

    PHP mysql database class php saved by 49 people
    posted on May 27, 2007 by emuen

23. Test for a valid email address and MX records

    PHP regex email valid textmate test mx saved by 49 people
    posted on July 26, 2006 by tylerhall

24. Cerate zip files PHP

    PHP php saved by 48 people
    posted on September 13, 2007 by lmcdougall

25. Check for AJAX Request

    PHP ajax php saved by 47 people
    posted on September 12, 2006 by TC

26. Email Encoder

    PHP email javascript php html saved by 44 people
    posted on July 15, 2006 by moikirsch

27. Import CSV File

    PHP data import textmate read csv excel saved by 42 people
    posted on August 7, 2006 by tylerhall

28. iPhone & iPod Detection

    PHP php detection mobile iphone ipod saved by 41 people
    posted on February 19, 2009 by sidisinsane

29. PHP: Sending Email (Text/HTML/Attachments)

    PHP php mail html text send attachment mime saved by 41 people
    posted on April 29, 2008 by funkmyer

30. Days ago function

    PHP time date days ago saved by 40 people
    posted on April 14, 2008 by patcullen

31. 301 Redirect Google Safe

    PHP redirect google 301 saved by 40 people
    posted on April 16, 2007 by tylerhall

32. Download File

    PHP http file download save saved by 39 people
    posted on November 27, 2006 by tylerhall

33. File download with speed limit

    PHP file download speed saved by 38 people
    posted on March 11, 2008 by localhorst

34. read images of directory

    PHP image array saved by 37 people
    posted on August 6, 2006 by luman

35. Gzipping your CSS

    PHP css php gzip obgzhandler saved by 35 people
    posted on February 12, 2008 by johnself

36. File Size

    PHP file size saved by 34 people
    posted on August 3, 2006 by luman

37. Regex (regular expression) to match a URL

    PHP regex url match saved by 33 people
    posted on March 21, 2007 by tylerhall

38. Calculate Age

    PHP AGE CALCULATION YEARS saved by 32 people
    posted on October 9, 2006 by sorehead

39. login

    PHP saved by 32 people
    posted on October 4, 2006 by limonn

40. Easy Excel export from PHP

    PHP php tables excel saved by 31 people
    posted on October 8, 2008 by stavelin