Isset
Is there an ASP version of the php function isset()? This basically checks to see if a variable is set returning a bool answer? And if so will it work on Application("") variables?
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Does ASP Have An Equivalent For ISSET (php)?
Does anyone know if ASP has the equivalent of ISSET in PHP. eg. below:
It just basically says if a variable IS SET do something...
PHP Code:
<?php if (isset($userName)) print "Welcome " . $userName . "<br>"; else print "You are not logged in <br>";?>
Isset Function
is there an ASP function similar to the isset function in PHP ?what we want to do is have a form, when the user presses a submit button, we want the form/page to be reloaded but with error messages.
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how can i check to see if a variable exists? or whether it has been set in asp?
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