PHP Function
In this tutorial we will focus on PHP MYSQL functions like MYSQL_connect, MYSQL_select_db, MYSQL_close($link) etc.
PHP provides a lot of predefined MYSQL functions to connect to the MYSQL database and manipulate the data from MYSQL database.
You can easily call PHP MYSQL function like normal PHP function. Some of all are following below
Syntax
MYSQL_connect(server, user, pass, new_link, client_flag);
| Parameter | Description |
| Server | Url or ip of the MYSQL server(optional) |
| User | User name of the MYSQL server(optional) |
| Pass | User name of the MYSQL server(optional) |
| New_link | default: FALSE, no new link on second call(optional) |
| Client_flag | $integer(optional) |
Note: Always use die function for security purpose.
Definition
It returns true if it successfully connected to the database server otherwise return false.
Usage
mysql_connect() is basically used to Establishes the connection to the MySQL server located at server and using the permissions provided by the username and password.
Example of die function
<?php
$con = mysql_connect('localhost', 'root', '')
or die('Could not connect to the MYSQL DB');
if($con)
{
echo "Connected successfully";
}
else
{
echo "Error occur ";
}
?>
Output
Connected successfully
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