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Checking if constant is defined


eldan88
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Hey guys. When ever a consant is set to an empty string its still shows as it being defined. I have an application that sets some constans based on a form submession. However some optional forms fields has not been filed out and it sets the constants to "". i.e define("NAME", "");

 

Is there any PHP function I can use to tell PHP to preform a set of conditions if the constant is  "". I have tried googling it but couldn't get anything. From what I know isset and empty won't work with constants.

 

Does anyone might have an alternative?

 

Thanks

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The idea of constants being defined via form submission sounds all together dodgy. They are "constant" for a reason. They are meant to be reliable.

 

Why are you using constants for this data?

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