I am using a session variable named $_SESSION['role'], which I initialize when a user logs on to my application. When I check the value of this variable in one of my later scripts, I get an error message saying 'Undefined index: role in ....'. How do I correct this error?
Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.
Popularity Can Be Measured
Sometimes we deal with questions of popularity, and we need a way to collect opinions from our clients. This article shows a simple teaching example of how we might elect a favorite color by letting our clients vote for …
The viewer will learn how to create a basic form using some HTML5 and PHP for later processing.
Set up your basic HTML file. Open your form tag and set the method and action attributes.:
Set up your first few inputs one for the name and …