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PHP Quiz PHP CertificatePHP mysqli_connect() Function
Example
Open a new connection to the MySQL server:
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno($con))
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno($con))
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>
Definition and Usage
The mysqli_connect() function opens a new connection to the MySQL server.
Syntax
mysqli_connect(host,username,password,dbname,port,socket);
| Parameter | Description |
|---|---|
| host | Optional. Specifies a host name or an IP address |
| username | Optional. Specifies the MySQL username |
| password | Optional. Specifies the MySQL password |
| dbname | Optional. Specifies the default database to be used |
| port | Optional. Specifies the port number to attempt to connect to the MySQL server |
| socket | Optional. Specifies the socket or named pipe to be used |
Technical Details
| Return Value: | Returns an object representing the connection to the MySQL server |
|---|---|
| PHP Version: | 5+ |
PHP MySQLi Reference
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