MySqli: is it possible to create a database? [closed]

问题

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Closed 6 years ago.

I've been sifting through the MySQLi docs, and as far as I can tell, I there's no way to create a database using PHP and MySQLi. Is this correct?

回答1:

The CREATE DATABASE statement is used to create a database in MySQL.

• Syntax:

CREATE DATABASE database_name 

To get PHP to execute the SQL instructions, first you must create a mysqli object with the connection to the server, then use the query() method of the MySQLi class.

• Syntax:

mysqliObj->query($sql_query)

• mysqliObj - is the mysqli object created with new mysqli()
• $sql_query - is a string with SQL instructions. This method sends a query or command to a MySQL connection, will return a result object, or TRUE on success. FALSE on failure.

The following example creates a database called "tests":

<?php
// connect to the MySQL server
$conn = new mysqli('localhost', 'root', 'pass');

// check connection
if (mysqli_connect_errno()) {
  exit('Connect failed: '. mysqli_connect_error());
}

// sql query with CREATE DATABASE
$sql = "CREATE DATABASE `tests` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci";

// Performs the $sql query on the server to create the database
if ($conn->query($sql) === TRUE) {
  echo 'Database "tests" successfully created';
}
else {
 echo 'Error: '. $conn->error;
}

$conn->close();
?>

Check this link http://coursesweb.net/php-mysql/php-mysql-using-mysqli

回答2:

If you have the permissions, you can execute a CREATE DATABASE statement using mysqli_query.

回答3:

You can create a database. Here is an example

<?php
$con=mysqli_connect("example.com","peter","abc123");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

// Create database
$sql="CREATE DATABASE my_db";
if (mysqli_query($con,$sql))
  {
  echo "Database my_db created successfully";
  }
else
  {
  echo "Error creating database: " . mysqli_error($con);
  }
?> 

Found here http://www.w3schools.com/php/php_mysql_create.asp

来源：https://stackoverflow.com/questions/16403400/mysqli-is-it-possible-to-create-a-database