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PHP Create a MySQL Database

A database consists of one or more tables.
You will need special CREATE privileges to create or to delete a MySQL database.


Create a MySQL Database Using MySQLi and PDO

The CREATE DATABASE statement is used to create a database in MySQL.
The following examples create a database named "myDB":

Example (MySQLi Object-oriented)

<?php $servername = "localhost"; $username = "username"; $password = "password"; // Create connection $conn = new mysqli($servername, $username, $password); // Check connection if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error); } // Create database $sql = "CREATE DATABASE myDB"; if ($conn->query($sql) === TRUE) { echo "Database created successfully"; } else { echo "Error creating database: " . $conn->error; } $conn->close(); ?>

Note: When you create a new database, you must only specify the first three arguments to the mysqli object (servername, username and password). Tip: If you have to use a specific port, add an empty string for the database-name argument, like this: new mysqli("localhost", "username", "password", "", port)

Example (MySQLi Procedural)

<?php $servername = "localhost"; $username = "username"; $password = "password"; // Create connection $conn = mysqli_connect($servername, $username, $password); // Check connection if (!$conn) { die("Connection failed: " . mysqli_connect_error()); } // Create database $sql = "CREATE DATABASE myDB"; if (mysqli_query($conn, $sql)) { echo "Database created successfully"; } else { echo "Error creating database: " . mysqli_error($conn); } mysqli_close($conn); ?> Note: The following PDO example create a database named "myDBPDO":

Example (PDO)

<?php $servername = "localhost"; $username = "username"; $password = "password"; try { $conn = new PDO("mysql:host=$servername", $username, $password); // set the PDO error mode to exception $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $sql = "CREATE DATABASE myDBPDO"; // use exec() because no results are returned $conn->exec($sql); echo "Database created successfully<br>"; } catch(PDOException $e) { echo $sql . "<br>" . $e->getMessage(); } $conn = null; ?> Tip: A great benefit of PDO is that it has exception class to handle any problems that may occur in our database queries. If an exception is thrown within the try{ } block, the script stops executing and flows directly to the first catch(){ } block. In the catch block above we echo the SQL statement and the generated error message.