Add a period at the end of a string if there isn't one there already - Simple way to... Add and Subtract dates - You can combine strtotime with the date function to create your... Add dashes to credit card numbers - Easily add dashes to credit card numbers. Alternate Title Case function - Intelligently converts a string into title case. Anti-Flood Protection - This script will redirect the user when he or she makes too many... Anti-SQL Injection Function - Simple function to help stop SQL Injection attacks. Use th... Array of all US states - Handy pre-made array of all US states. Auto Link Maker - Automatically make active links to URLs. Works for both 'http:' and 'm... Auto Link Maker #2 - Automatically creates links 'http:' and 'mailto:' strings in text. Automatically process email - Automatically process an email with attachment(s) using PH... Awesome Date Time Conversion Kit - Awesome Mysql date-time converter kit. Real-life ... Bad Word Filter - Replaces bad words, censoring the text passed in automatically. Ban Proxy Servers - Bans most (but not all) proxy servers by detecting common "FORWARD" ... Base 64 Decode - I recently ran across a freeware web application written in PHP that ut... Basic currency conversion Convert 1 dollar to pounds using Yahoos conversion - Convert ... Basic PHP Calendar - Easy to modify PHP Calendar that displays the current month. Binary to Text / Text to Binary - Binary to Text and Text to Binary printer. Block IP Addresses - The above code creates an array of IP address to be blocked and che... BR2NL Function - Opposite of NL2BR - Simple way to do the opposite of what the nl2br() f... Browser sniffer / detector - Simple code that displays the HTTP_USER_AGENT of the client. Bubblesort routine - Reasonably quick bubblesort routine. Buffered Download code - For downloading very large files (10 meg or more), split the fi... Build Date Select Boxes - A function that builds select boxes for the month,day,and year... Build HTML select list from table - This function builds an HTML select list from from d... Build select menu from database - This small function is used to build a select menu wit... Calculate date of Easter Sunday - Correctly calculate the date of Easter Sunday. Calculate Distance - Calculates the distance between two pairs of latitude longitude coo... Calculate File Size In Directory - This is a PHP Class that calculates the size, number ... Calculate the difference between two times formatted in HH:MM - A script that calculates... Calculate Zipcode Distances - This routine calculates the distance between two points (g...