Solved

Connect to mySQL db ONLY if not already connected

Posted on 2007-11-28
2
183 Views
Last Modified: 2013-12-12
Hello,

I want to connect to a mySQL database but ONLY if I am not already connected to a database.

             mysql_connect($DBhost,$DBuser,$DBpass) or die("Unable toconnect to database");
             mysql_select_db("$DBName") or die("Doh!");

So if my script is called as an include from a script that has already established a connection with the DB then it should not connect again.
0
Comment
Question by:hankknight
2 Comments
 
LVL 17

Accepted Solution

by:
nplib earned 500 total points
ID: 20367382
if (!$conn) {
$conn =  mysql_connect($DBhost,$DBuser,$DBpass) or die("Unable toconnect to database");
             mysql_select_db("$DBName") or die("Doh!");
}
0
 
LVL 20

Expert Comment

by:steelseth12
ID: 20367469
Have a look at the Singleton pattern

http://www.php.net/manual/en/language.oop5.patterns.php
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Popup to change image and store url in database 2 31
Hacked File Timestamps 4 50
php refresh button on the browser 2 36
Intermittent Error on Page Loading 4 20
Developers of all skill levels should learn to use current best practices when developing websites. However many developers, new and old, fall into the trap of using deprecated features because this is what so many tutorials and books tell them to u…
Introduction This article is intended for those who are new to PHP error handling (https://www.experts-exchange.com/articles/11769/And-by-the-way-I-am-New-to-PHP.html).  It addresses one of the most common problems that plague beginning PHP develop…
The viewer will learn how to dynamically set the form action using jQuery.
The viewer will learn how to look for a specific file type in a local or remote server directory using PHP.

867 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now