PHP mysql_connect() Function
 Complete PHP MySQL Reference
Definition and Usage
The mysql_connect() function opens a non-persistent MySQL connection.
This function returns the connection on success, or FALSE and an error on
failure. You can hide the error output by adding an '@' in front of the function
name.
Syntax
|
mysql_connect(server,user,pwd,newlink,clientflag)
|
| Parameter |
Description |
| server |
Optional. Specifies the server to connect to (can
also include a port number. e.g. "hostname:port" or a path to a local socket
for the localhost). Default value is "localhost:3306" |
| user |
Optional. Specifies the username to log in with. Default
value is the name of the user that owns the server process |
| pwd |
Optional. Specifies the password to log in with. Default is
"" |
| newlink |
Optional. If a second call is made to mysql_connect() with
the same arguments, no new connection will be established; instead, the
identifier of the already opened connection will be returned |
| clientflag |
Optional. Can be a combination of the following constants:
- MYSQL_CLIENT_SSL - Use SSL encryption
- MYSQL_CLIENT_COMPRESS - Use compression protocol
- MYSQL_CLIENT_IGNORE_SPACE - Allow space after function names
- MYSQL_CLIENT_INTERACTIVE - Allow interactive timeout seconds
of inactivity before closing the connection
|
Tips and Notes
Tip: The connection will be closed as soon as the script ends. To
close the connection before, use mysql_close().
Tip: To establish a persistent MySQL connection, use mysql_pconnect()
instead.
Example
<?php
$con = mysql_connect("localhost","mysql_user","mysql_pwd");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
// some code
mysql_close($con);
?>
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Complete PHP MySQL Reference
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