When data is put into a MySQL table it is referred to as inserting data. When inserting data it is important to remember the exact names and types of the table’s columns. If you try to place a 500 word essay into a column that only accepts integers of size three, you will end up with …
I assume that you have read tutorial of adding data into tables. I will try my best to keep it as easy as I can. Functions we will use: mysql_connect(); mysql_select_db(); mysql_query() ; mysql_fetch_assoc(); mysql_num_rows(); Ok – now I assume that you have read the above tutorial I mentioned in which we …
Error handling in PHP is a fairly straightforward process. PHP will simply send to the browser (or standard output if executing a script from the command line).* an error message containing relative information to the error such as the filename of the script, the specific line in the file that caused the error, * a …
Cookies are pieces of text that are sent to a user’s web browser. Cookies can help you create shopping carts, user communities, and personalized sites. It’s not recommended that you store sensitive data in a cookie, but you can store a unique identification string that will match a user with data held securely in a …
Cookies are created in PHP using the setcookie() function. setcookie() takes a number of arguments. The first argument is the name of the cookie (the name part of the name/value pair described earlier). The second is the value part of the name/value pair. The third argument is the optional expiration date of the cookie. …
PHP Sessions allow web pages to be treated as a group, allowing variables to be shared between different pages. One of the weaknesses of cookies is that the cookie is stored on the user’s computer (and by user we mean the person with the browser visiting your web site). This provides the user the ability …
Creating a PHP Session PHP sessions are created using the session_start() function which should the first function call of the PHP script on your web page (i.e before any output is written to the output stream). The following example demonstrates the creation of a PHP session: <?php session_start(); $msg=”Session Created”; ?> <!DOCTYPE …
A very useful aspect of PHP is its ability to manage file uploads to your server. Allowing users to upload a file to your server opens a whole can of worms, so please be careful when enabling file uploads. PHP – File Upload: HTML Form Before you can use PHP to manage your …
The Mail () Function Many websites offer a way for you to send them an email from a simple form on their site. Providing the form as opposed to simply listing your email address not only looks nicer but also serves two purposes. 1. First, the form lets the website owner decide what …
While PHP’s date() function may seem to have an overwhelming amount of options available, isn’t it always better to have more choices than not enough? With PHP’s date function you format timestamps, so they are more human readable. The PHP date() function formats a timestamp to a more readable date and time. Syntax …
In spite of the growing popularity of XML for storing and exchanging data of nearly any kind imaginable, XML is not well suited to act as a direct replacement for some of its defined subsets or sublanguages, like HTML. This is because XML defines only a standard for structuring data XML itself fails (indeed, …
A PHP filter is used to validate and filter data coming from insecure sources. To test, validate and filter user input or custom data is an important part of any web application. The PHP filter extension is designed to make data filtering easier and quicker. Why we need to use a Filter? Almost …
In this section we will provide you download links for all necessary software, required for learning and development. Apache Download Download Apache from: [http://httpd.apache.org/download.cgi] MySQL Download Download MySQL from MySQL website [http://dev.mysql.com/downloads/mysql/] PHP Download Download PHP from: http://www.php.net/downloads.php Windows Apache+ MySQL +PHP bundles XAMPP Download XAMPP …