Undefined Index

[Jarin]

Hello

I have a small problem with a script of mine.. I keep getting an Undefined Index error when I call for a value from an array when that value is not defined. For instance, calling $_REQUEST['do'] when 'do' has no value will return such an error. Is it safe to simply suppress these errors or is there something I should do to eliminate them?

Thanks in advance.

[wildteen88]

Before you use user defined variables (_POST, _GET, _REQUEST etc). You should check that they exist first. For example:
[code=php:0]if(isset($_REQUEST['do']) || !empty($_REQUEST['do']))
{
    // use $_REQUEST['do']
}[/code]

Doing that will stopo the undefined index notice message appearing.

Or just turn down error_report so it ignores notices

[Jarin]

Alright, well I just turned down error reporting then. I suppose it can't hurt anything. Thanks!

[wildteen88]

Make sure you have turned down error reporting so it ignores notices. However you should check user defined variables are set before using them, just like above rather than taking the easy route.