1. Computing
Send to a Friend via Email

PHP / MySQL: Most Popular Articles

These articles are the most popular over the last month.
Want to Redirect Your Website? Here's How to Do...
Sample code for creating a PHP redirection script to transfer users from one web page URL on your site to a new page URL or web site
Understanding the MySQL Command: Limit
Limit the results of your MySQL query to results between a certain number range.
PHP with HTML
How to embed php into HTML, or put HTML inside PHP so you can use both on the same page of your website.
A Quick Guide to Using PHP for Connections with...
How to access stored data from a MySQL database using PHP. Page 2.
Understanding PHP Login Script
PHP code to create a login script - free code and tutorial to create a login script with PHP
How To I Order MySQL data
How to sort your MySQL data using a SQL Order By statement
How and Why to Comment Your PHP Code
How and why to comment your code in PHP
What Version of PHP Am I Running?
Do you need to check what version of PHP your server is running? This simple tutorial shows you how.
How to Change a Column Name in MySQL
How to change the name of a column in a MySQL database
A Beginner's Guide to Basic PHP Sessions
Once you have set a variable in a PHP session, this tutorial tells you how to retrieve it. Page 2.
Create Links in PHP
How to create links in PHP. PHP / MySQL.
Execute PHP from a .html File
This tutorial explains how to execute php code in a file with a .html extention
The Difference Between Cookies and Sessions
What is the difference between sessions and cookies in PHP?
Learn PHP Free Online
Learn PHP programing free with our easy to understand online tutorials. Learn to make a website using PHP code online.
Uploading Files with PHP
Upload a file from your browser to your server using PHP
Saving User Uploads to MySQL
Upload a file from your website to your server, and write it's details to a MySQL database - Using PHP and SQL.
How to Build a Very Simple PHP Calendar
Learn how to generate a simple PHP calendar using our PHP calendar tutorial.
Setting Up A Short URL Forward
Sometimes when you have a really long, unfriendly URL you want something shorter and easier to remember. We show you how to do this using a PHP redirect.
How to Create a Simple Search Form with PHP...
This free tutorial teaches you how to search your site using php and mysql to give the site users instant search results. PHP and SQL.
Need to Turn on PHP Error Reporting? Here's How
It is a lot easier to know what went wrong with your PHP script if you have a helpful error message instead of just a blank screen. This tutorial teaches you how to turn on error reporting.
Pagination of MySQL Query Results
Use Pagination to display results of your MySQL query over multiple pages in PHP
How to Use the Print_r () PHP Function
Print_R is used to return an array in a human readable form in PHP
Storing User Submitted Data and Files in MySQL
How to insert data from a form into a MySQL database using PHP. Page 2.
An Introduction to Loops in PHP
Learn PHP from a simple web based tutorial. Learn to use the three types of loops - WHILE, FOR, and FOREACH loops in PHP programing. Page 3.
How to Use PHP to Write to a File
Using PHP to create a file on your server and write data to it
How to Remove Columns from a Table with Drop...
How to remove (drop) a column from a table using MySQL with your SQL database.
Loading a Blank White Screen Instead of Your...
Common solutions to PHP problems - PHP page not loading, showing a blank or white screen
Want to Create a Template for Your Website?...
Site templates for easy updating with include files headers and footers using PHP
Hello, World!
Every language has it... the basic "Hello, World!" script. It is a simple script that only displays the
A Beginner's Guide to Learning PHP
Learn PHP from a simple web based tutorial. Explore basic PHP syntax, using variables, operators and operands, and the use of conditional statements.
How to Use a PHP Form to Collect User Data
Collect data from HTML forms to process with a PHP script as shown in our tutorial
How to Use the Modify SQL Command
Change the size of a MySQL column by using the Modify SQL command
Easily Create Tables in MySQL Using phpMyAdmin:...
How to create a MySQL database table using phpMyAdmin
A Simple Guide to Writing Functions in PHP
Learn PHP from a simple web based tutorial. How to use functions in PHP, use the date function, or write your own functions. Learn Date function formatting. Page 3.
Repairing a MySQL Database with phpMyAdmin
How to repair a MySQL table using phpMyAdmin if you are getting errors or having trouble accessing it.
Using Cookies with PHP
Cookies are used to store information about a user on their computer. We can set cookies using PHP to track visitors, as shown in our tutorial.
What is PHP Used For?
What is PHP Used For? Answers to this new programmer question.
Want to Use "is_numeric ()" Functions in PHP?...
The PHP function is_numeric is used to check if a variable is a number.
Show Tables SQL Command
The show tables SQL command is used to display all the tables in a MySQL database
Using Notepad for PHP
How to use Notepad to create and save PHP files
Backup and Restore MySQL Databases
Restore and upload your MySQL data using the backup you made and downloaded from a command prompt. Page 2.
2 Important Reasons to Use the Mail () Function
Using the PHP MAIL function to send form data to an email from the web
MySQL Connect Files in PHP
When you have many pages requiring access to your MySQL database, it is a good idea to keep your connection login in a separate file, and call it from each of these PHP pages.
Str_replace () PHP Function
Str_replace is used to find and replace parts of a string in PHP
Managing Data in MySQL: A Quick How-To Guide
Add data to MySQL by using Insert Into SQL code as demonstrated in our tutorial
10 Things Every Web Developer Should Be Doing...
Ten cool things you can do with PHP on your website, as well as tutorials of how to create these things.
How to Install PHP on a Mac
How to install PHP onto your Mac OS X
What is Binary?
What are binary numbers, and how do you read them
A Practical PHP Form to Mail
How to send an email from a form on a website to your email using PHP
Introduction to Preg in PHP
Understanding the preg_match PHP function and how to use it on your PHP website. Page 2.
What Is My IP?
This is a very short easy to understand tutorial about how do create a 'What is my IP' style script, to look up the users IP address as they visit the site
Connect to MySQL from PHP
How to connect to your MySQL database from a PHP document
How To Generate a Unique ID
PHP code to generate a random unique user ID
How To Create a Database in MySQL
How to create a new database in MySQL using SQL or phpmyadmin.
Renaming PHP Uploads
How to rename files uploaded by users to your website before saving them to your server.
Rand () PHP Function
Generating a random number in PHP with the rand () function, or generating a random number between two given parameters
How to Add Columns with MySQL Command
How to add a column to MySQL using the add column SQL command
Today's Date using PHP
An example of how to print the current date on a web page written in HTML using PHP
Getting More Information From PHP
Use phpinfo to learn more about the version of PHP your server is running. PHPinfo command cans show you your PHP version, path, and specific settings.
How To use mktime to create a countdown
Create a simple countdown clock ticker in PHP using the mktime function
Including External Files in PHP
Include external files into a PHP file using the include or require commands
Learn SQL (MySQL)
Just the basics you need to learn SQL code to use with your MySQL database. Free tutorial to learn MySQL.
Using \$_SERVER in PHP
A free PHP tutorial explaining the difference between $_SERVER[’PHP_SELF’], $_SERVER[’SCRIPT_NAME’], and $_SERVER['REQUEST_URI']
Session_start() PHP Function
The session_start() function is used at the beginning of all PHP pages utilizing sessions.
A Quick Guide to Using "Alter Table" Commands...
How to use the MySQL alter table command, and what to combine it with to do different things to your database.
How to use phpMyAdmin for your database.
A basic overview of what you can do to your database with phpMyAdmin.
Store PHP Code in a MySQL Database
Store your PHP code in a MySQL database and call it when needed
Do I Have PHP?
How to determine if your hosting runs PHP
What are PHP and MySQL
This site explains what PHP and MySQL are as well as how to use them and how they can work together to create dynamic content for websites. Page 2.
How can report MySQL errors into PHP?
How to report an error into PHP from MySQL when your SQL code has errors
Getting started with PHP
An absolute beginner's guide to writing and understanding their first PHP program.
Customizing phpBB's template
How to edit your phpBB template to have a custom look, or theme.
Add Unique - MySQL Command
Add a unique table column in MySQL to ensure you do not have any duplicates, but using 'Add Unique' in your SQL Code
Show Databases SQL Command
Using the show databases SQL command to show all the databases on the MySQL server
GD Library - The Basics of Drawing with PHP
You can use the GD Library in PHP to dynamically create images
A Quick PHP Variable Reference
Everything you've ever wanted to know about PHP variables in an easy to understand, free tutorial.
How do I pass variables in the URL in PHP 5?
If you pass variables in the URL in PHP 4, the same scripts might not work in PHP 5 without some editing. Here is how to fix it.
Create a Link from a Database
How to retrieve a URL and text from a database and create a link on your website using PHP.
Is_string () PHP Function
The is_string php function is used to check if the value is a string. It will return true or false.
Why Use PHP?
The top three reasons why to use PHP on your website.
A Simple Rating System in PHP
A PHP script that allows you to give a 1-5 star ratings for items on your website.
Describe SQL Command
The describe SQL command shows a tables fields and their formats
Where are your users coming from?
How to find a user's IP address using PHP
How Can I Fix A Database Connection Error?
Some common problems that can occur when trying to connect to a MySQL database, and give errors.
How To Redirect Users to Hidden Pages
A simple password style redirect that sends a user to the word they enter plus .html as a way of hiding pages
Substr () PHP Function
How to use the Stbstr PHP Function to return part of a string in PHP
Drop Database SQL Command
The drop database command in MySQL will remove a database from the MySQL server
Formatting Your PHP
How to make your PHP pages pretty with formatting
Installing PHP on Linux
How to install Apache and PHP on your Linux computer
Simple Address Book
Create an online address book using PHP
Skipping over chunks of code in PHP using Goto
How to skip over a section of code in PHP using goto.
Read & Return Data From Files Into PHP
How to open an external file with PHP and download its contents to use within your PHP file.
Installing MySQL on a Mac
How to install MySQL on your Apple computer
Using TextEdit for PHP
TextEdit comes standard on an Apple Macintosh computer. By following these simple steps you can use this program to create and save PHP files.
Unset () PHP Function
Unset is used to destroy specified variables in PHP
Session_destroy () PHP Function
Session_destroy () is used to destroy all the data in a current session
How to change a column's size or type in MySQL
How to change a column's size or type in MySQL
Date & Time in PHP
How to create and format a timestamp in PHP for a current, past or future date.
Automatic Copyright Dates
This script automatically updates the copyright date on your website every year so that you don't have to worry about it.
What to do when your WordPress permalinks show...
I setup custom URLs (permalinks) for my WordPress blog (such as /date/day/title) and now all my pages are broken or showing as 404 errors, how can I fix it?
Rounding and Formatting Numbers
How to format a number in PHP - Free simple tutorial to using the number_format () function. Page 4.
Why Don't I See My Code When I View Source?
When you view source on your PHP files, why can't you see your code?
Drop Table MySQL Command
Delete an entire table from a MySQL database using the drop table command
Random Numbers
How to generate a random number using PHP
Web Page Hit Counter
Free web page hit counter code for your website, for a simple free web site hit counter written in PHP.
Creating Thumbnails with PHP using the GD Library
In this tutorial we explore how to do this using imagecopyresized () and use imagecopyresampled. We also cover calling the image from the PHP file.
Simple PHP & MySQL Poll
This tutorial explains how to make a basic poll using PHP and MySQL, along with the GD Library to give a pie chart of the poll results.
fopen () PHP Function
Use fopen() to open up a file from php
Connecting to a MySQL database from PHP
How to connect to your MySQL database from a PHP file
Show Columns - MySQL Command
The show columns command is used to display all the columns for a given table and their details.
Which loop is best for your project?
How to use loops in your PHP code to repeat a section of code over and over until a condition is met.
MySQL with Android
How to connect your Android app to a MySQL database
Automatically display when a file was last...
How to show the date a file was last modified using PHP and filemtime. This is great for automatically dating time sensitive data on your website.
PHP Code Showing Instead of Running
If you are running PHP on a web server, make sure you have a host who is setup to run PHP. Mac and Windows require more steps.
Using crypt () for Data Encryption
Using the crypt function in PHP to encrypt passwords and other data and keep them safe
Localhost doesn't work to connect to your MySQL...
How to troubleshoot localhost not working to connect to your mysql database via PHP.
Stripslashes () PHP Function
Stripslashes is used to remove black slashes from data in php
Using MySQL with iOS
While there are multiple methods of storing local data in an iOS app, sometimes the data already exists in one of your databases
How to Install phpBB on Your Website
How to install a phpBB web forum on your website - a tutorial for beginners
Calculating Area with PHP
How to create a PHP program to collect the length and width from the user and then calculate the area of the rectangle. A free PHP Tutorial.
Understanding how SQL databases work
Learn MySQL from a simple web based tutorial. Learn and understand SQL code
Learn PHP in 8 Weeks
In just a few minutes ever week, you can learn all the basics of PHP. This course is broken down into eight short lessons. In just eight weeks you will have a firm grasp of all the basic PHP concepts.
Select - MySQL Command
The SQL select statement is used to choose what data to pull from the mysql database
Session_unset () PHP Function
Session_unset() is used to clear all the variables in a PHP session
How can I learn PHP?
A guide to how to get started learning PHP
Free PHP Script Directories
A listing of Free PHP Scripts and websites that provide them
Building Variables In PHP
How to build variables on the fly with PHP.
Print () PHP Function
The print function in php is used to output (print) data.
PHP is a Server Side Language
PHP is a server side language, this means that all calculation are preformed on the server and not seen by the end user.
Detect a User's IP Address
Record a user's IP address using this free PHP script.
Echo () PHP Function
Echo Function in PHP outputs (echos) the data to the page
PHP CSS Switcher
Allow your users to change CSS style on your site, using PHP and Cookies
Check Your PHP
How to troubleshoot and double check your PHP code for errors
Your PHP code can't be viewed by viewing the...
You can't see PHP code when you view a document source, you only see the HTML it outputs.
File_Get_Contents () PHP Function
File_get_contents reads the data from a file and returns it to the PHP file as a string as demonstrated in our tutorial.
Finding the Document Root
Often when installing scripts you need to know the document root. This simple script can give you that information.
Counting Outbound Clicks With PHP
This tutorial demonstrates how to use php and mysql to count which sites have the most click throughs on your site.
PHP Flat File Counter
This tutorial shows you step by step how to create a flat file counter (no database) using PHP
How To CHMOD from FTP
How the CHMOD a file to different permissions from your FTP program
PHP File Upload Security Ideas
Ideas to protect your website when you allow users to upload to your server.
Getenv () PHP Function
Free tutorial about how to use the getenv() command in PHP to get such things as the document root, or the user's IP address.
How to define an array in PHP
How to create an array in PHP. PHP / MySQL.
Simple Banner Rotation
Generate random banners advertising on your web site with PHP, or have random graphic rotation.
Convert Temperature
Convert Temperature - Convert Fahrenheit to Celsius Temperature using a free php script
Server Side Scripting
Server side scripting means that all of the code is executed on the server before the data is passed to the user's browser.
Avatar: not just a movie.
An avatar is used to represent you online.
How to rotate an image using pHP
How to rotate an image using PHP
Rotate an Image
How to rotate an image using PHP with the GD Library
Using SQL Joins
Use a SQL Join to combine two or more tables data in MySQL
Changing a string to all lower case letters...
How to change a string to all lower case letters using PHP

©2014 About.com. All rights reserved.