MySQL

MySQL

MySQL

PHP MySQL

- Tech and Technology
PHP MySql Windows - Advanced Tools for this database
This is a guide to setup your own Windows e-commerce site.

Apache, PHP, and MySQL are excellent tools to build an e-commerce Web site with database connectivity. Here you will learn how to install and configure Apache, PHP, and MySQL on Windows in few easy steps.

PHP
Download PHP

Download the binary version of PHP for Windows users. It’s stable and you can easily plug it into your Apache Web server. Downloading the source code offers many more customization options. - The control structures in PHP, C++ and JavaScript are very similar. We can create a database in MySQL, populate it with data, and run a few short queries on the database using PHP.

A basic knowledge of an object-oriented programming language like C++ will make understanding PHP easy. I chose JavaScript for client-side scripting and PHP for the server-side –

Apache .: Installing and Configuring
Apache

Download Apache to your hard drive, and run the executable file. Choose the “typical” install.

  • httpd.conf - this is the master Apache configuration file Is located in "C:\Program Files\Apache\conf\httpd.conf"
    You can edit it with any editor like Notepad.
    # The lines starting with # means that they are commented.
    Most of the lines are commented; and other few lines of code are left uncommented.
    To uncomment just Remove the "#" from the start of the line.
  • #ServerName: localhost (Line in httpd.conf)
    Start Apache from the start menu and open your Web browser with "http://localhost/" You must see the default installation page to verify that it's working.

    The ServerName does not have to be “localhost”, and if you happen to have a real host you can supply its name instead. If you used a real ServerName instead of the default localhost, type that name in the location bar instead. -

  • DocumentRoot "C:/yourwebsite" (Line in httpd.conf)
    Configure the name with the directory location of your website. Search for a line starting with:
    <Directory />
  • Change the whole group so it resembles the following:
    <Directory />
    Options FollowSymLinks ExecCGI
    AllowOverride None
    </Directory>
    <Directory "C:/website">
    Order allow,deny
    Allow from all
    </Directory>
    PHP.: Installing and Configuring
    Download MySQL
    Extract the contents to C:\php
    Rename the file called "php.ini-dist" to "php.ini" and move it to C:\WINDOWS or wherever the rest of your *.ini files live.
    Copy the two files "Msvcrt.dll" and "phpts.dll", to C:\WINDOWS\SYSTEM
    Change apache httpd.conf
    ScriptAlias /cgi-bin/ "C:/Apache/cgi-bin/"
    Add another ScriptAlias line to the end, just like this:
    ScriptAlias /php/ "C:/php/"
    Now find a section that looks like this:
    #AddType application/x-httpd-php3 .phtml
    #AddType application/x-httpd-php3-source .phps
    Change the section should now look something like this:
    AddType application/x-httpd-php .php .phtml
    AddType application/x-httpd-php-source .phps
    Search for the following line:
    # Format: Action handler-name /cgi-script/location
    #
    You need to include an Action line for your new file types, so that they are automatically sent through the PHP parser. To do this add the following line:
    Action application/x-httpd-php /php/php.exe
    Save your httpd.conf file and start Apache again.
    There's one good way to test your installation: use the phpinfo() function. Open a text editor and type this:
    <? phpinfo() ?>
    Save this file as phpinfo.php, and put it in C:website, then fire up your Web browser and go to "http://localhost/phpinfo.php" where you should see a long page of variables and their values. The phpinfo() function produces this page, which shows you your environment and your settings. This tells you that both Apache and PHP are installed and functioning correctly.
    Installing MySQL
    Download MySQL
    See below to download MySQL. The installation itself is very fast and does not require any special modifications. Just follow the installer and restart the computer. Start your web server (Apache) and familiarize yourself with MySQL. I’ll assume you know enough about SQL to understand the statements for creating tables and populating the database. The queries are going to be very simple - the goal is to learn how to manipulate the database using PHP.
    Connecting to and creating a database
    To create a database in MySql you have two choices: use DOS command prompt statements or use PHP code.
    DOS
    From a DOS prompt window switch to MySQL’s bin directory by typing:
    cd c:mysql\bin
    (assuming MySql was installed on drive C). To create a database in MySql you will have to type the following:
    mysqladmin –u root create roll
    This will create a database called “roll”.
    PHP
    In PHP we will use mysql_create_db () function to create the database.
    If (mysql_create_db (“ roll ”, $link ))
    {
    print (“ The database, roll, was successfully created!<BR> ”);
    }
    else
    {
    print (“ The database, roll, could not be created!<BR> ”);
    }
    Obviously, you’ll have to provide the database name and the link to MySql obtained using the mysql_connect() function:
    $link = mysql_connect (“ localhost ”, “ root ”);
    To close the link we will use the mysql_close() function.
    mysql_close($link );
    Unless you have logged in using a user account that does not have administrative privileges, this should work without any problems. The dump file used for the database will contain the following statements:
    create table person
    (
    personId int auto_increment not null,
    firstName varchar(20) not null,
    lastName varchar(20) null,
    email varchar(20),
    primary key(personId),
    unique id(personId)
    );
    insert into person values(1, 'john', 'doe', 'johnd@hotmail.com');
    insert into person values(2, 'jeff', 'bridges', 'jbridges@msn.com');
    A dump file is an SQL script file. It contains well-formed SQL statements; it is preferable to the command line because it is easier to debug and reload if it contains errors. Dump files should be placed in MySQL’s bin directory. Load that up to the database by typing the following:
    mysql –u root roll < roll.dump
    Now you should have a database that’s ready to use. I suggest using a text editor that will preserve line wrapping like Notepad. Lets start with some simple PHP statements. PHP code can be inserted just about anywhere into your HTML code, or replace HTML altogether.
    First of all you will need to connect to your database so we will use the following statement:
    $link = mysql_connect (“localhost ”, “ root ”);
    The statement was written under the assumption that you are logged in as the root user. Now that you are connected, you will need to select a database with the following statement:
    mysql_select_db (“roll”, $link);
    Retrieving Data From A Database
    Lets write a simple query:
    $result = mysql_query(“ SELECT * FROM person ”, $link );
    The result of the query will be stored in the variable $result. To run a query on the database we can also use the mysql_db_query() function. The first parameter is the database name, second is the query string in SQL format, and the third is the link to the database.
    mysql_db_query(“ databaseName ”, $Query , $link )
    Again, we can use an if/else control structure to display errors during execution, which can be helpful for debugging.
    Now you have a basic understanding of how to create, populate, and retrieve information from a MySQL database using PHP. Feel free to modify the PHP file and insert it into or delete it from the database. For more information on other options to try, there’s plenty of online documentation available at www.php.net and other sites on the Web.
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