MySQLi Connection using mysql binary
You can build up MySQLi data set utilizing mysql parallel at order brief.
Example
Here is a basic guide to associate with MySQL worker to set up mysqli data set from order brief −
[root@host]# mysql -u root -p
Enter password:******
This will provide you mysql> order brief where you will have the option to execute any SQL order. Following is the consequence of above order −
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2854760 to server version: 5.0.9
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
In above model, we have utilized root as a client yet you can utilize some other client. Any client will have the option to play out all the SQL activities, which are permitted to that client.
You can detach from MySQL data set any time utilizing exit order at mysql> brief.
mysql> exit
Bye
MySQLi Connection using PHP Script
PHP gives mysqli_connect() capacity to open an information base association. This capacity takes five boundaries and returns a MySQLi connect identifier on progress or FALSE on disappointment.
Syntax
connection mysqli_connect(server,user,passwd,new_link,client_flag);
Sr.No. | Parameter & Description |
---|---|
1 |
server Optional - The host name running database server. If not specified, then default value is localhost:3306. |
2 |
user Optional - The username accessing the database. If not specified, then default is the name of the user that owns the server process. |
3 |
passwd Optional - The password of the user accessing the database. If not specified, then default is an empty password. |
4 |
new_link Optional - If a second call is made to mysqli_connect() with the same arguments, no new connection will be established; instead, the identifier of the already opened connection will be returned. |
5 |
client_flags Optional - A combination of the following constants −
|
You can disengage from MySQLi information base whenever utilizing another PHP work mysqli_close(). This capacity takes a solitary boundary, which is an association returned by mysqli_connect() work.
Syntax
bool mysqli_close ( resource $link_identifier );
On the off chance that an asset isn't indicated, at that point last opened information base is shut. This capacity returns valid on the off chance that it closes association effectively else it returns bogus.
Example
Evaluate the accompanying guide to associate with a MySQL worker −
<html>
<head>
<title>Connecting MySQLi Server</title>
</head>
<body>
<?php
$dbhost = 'localhost:3306';
$dbuser = 'guest';
$dbpass = 'guest123';
$conn = mysqli_connect($dbhost, $dbuser, $dbpass);
if(! $conn ){
die('Could not connect: ' . mysqli_error());
}
echo 'Connected successfully';
mysqli_close($conn);
?>
</body>
</html>
In the event that above model is associated with MySQLi, at that point the yield ought to resemble this on your program −
Connected successfully