You can create/drop any database using MySQL mysqladmin binary. It’s very important to understand that If you drop a database, that means to delete any database then all the data in it will be deleted forever.So always think twice before dropping a database.
Here is an example to Drop Database In MySQL Database in the previous chapter:
[root@host]# mysqladmin -u root -p drop Database tutorials
Enter password:******
First of all, this will provide a warning and it will confirm if you really want to delete this database or “no”.
Any data stored in the database will be destroyed.
Do you really want to drop the ‘ Database tutorials‘ database [y/N] y
Database ” Database tutorials” dropped
Drop Database using PHP Script:
PHP uses the mysql_query function in order to either create or delete a MySQL database.
Syntax:
bool mysql_query( sql, connection );
| Command | Detail |
| sql | Required – SQL query either to create or delete a MySQL database |
| connection | Optional – if not specified, then last opened connection will be used by mysql_connect. |
Example:
An example to delete a database:
[php]
<!--?php
$dbhost = 'localhost';
$dbusername = 'root';
$dbpassword = 'rootpassword';
$conn = mysql_connect($dbhost, $dbusername, $dbpassword);
if(! $con )
{
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully<br /-->';
$sql = 'DROP DATABASE TUTORIALS';
$result = mysql_query( $sql, $con );
if(! $result )
{
die('Could not delete database: ' . mysql_error());
}
echo "Database TUTORIALS deleted successfully\n";
mysql_close($con);
?>
[/php]Frequently Asked Questions
How does this PHP project work?
Built with vanilla PHP (no framework) and MySQL backend. Standard structure: form HTML, PHP script handlers, MySQL via PDO or mysqli, sessions for auth, Bootstrap for responsive layout. Ready to extend for BSIT capstone scope.
What PHP and MySQL versions does this project require?
Most projects in this batch run on PHP 7.4 to PHP 8.2 with MySQL 5.7+ or MariaDB 10+. A few older projects need PHP 5.6 (deprecated, use XAMPP 7.x). To run: install XAMPP / WAMP / Laragon, extract project to htdocs, import the included .sql file via phpMyAdmin, edit the connection file (usually config.php or db_connect.php) with your DB credentials, browse to the project URL in your browser.
How do I set up the database for this PHP project?
Open phpMyAdmin (http://localhost/phpmyadmin/ on XAMPP), create a new empty database with the name specified in the project’s config.php. Click the Import tab, choose the included .sql file, click Go. Then edit config.php (or includes/connection.php) with: ‘localhost’, your MySQL username (usually ‘root’), your MySQL password (usually blank for XAMPP), and the database name.
Can I use this PHP project for a BSIT capstone or thesis?
Yes, but extend it. A bare CRUD app is too narrow for full capstone scope. Add: user roles via session checks, reports/dashboards (Chart.js + AJAX), PDF exports (TCPDF library), email notifications (PHPMailer), real domain extension (analytics, audit log, multi-branch support). Pair with Chapter 1-5 documentation matching your panel’s rubric.
Why am I getting ‘connection error’ or ‘undefined function mysqli_connect’?
Three common PHP issues: (1) Connection error: Apache + MySQL services not running in XAMPP control panel, OR database name in config.php does not match what you created in phpMyAdmin. (2) ‘undefined function mysqli_connect’: MySQL extension not enabled, in php.ini uncomment extension=mysqli (then restart Apache). (3) ‘No such file or directory’: MySQL socket path wrong, use 127.0.0.1 instead of localhost in the connection string.
Where can I find more PHP projects with source code?
Browse the PHP Projects hub for the full library (300+ vanilla PHP systems). For modern PHP MVC alternatives see Laravel Projects (74 systems) or CodeIgniter Projects (32 systems). For BSIT-focused capstone idea lists see 150 Best Capstone Project Ideas.