isset
Description
The isset() function determines whether a variable has been set. A variable with a blank or zero value returns true, because blank and zero are considered values.
Syntax
result = isset (string);
Arguments
string Required. A string that contains a variable name.
Return Values
| true | Integer. The specified variable has a value. |
| false | Integer. The specified variable does not have a value. |
runhost = "beyondtrust1";
result = isset ("runhost");
In this example, result contains an integer value of 1 (true) because the runhost variable has a value of beyondtrust1.
For more information, see unset.
