|   |   | 
| $isEmpty Checks if a variable is set (empty or non empty) | 
| Usage | 
| <boolean> $isEmpty(<data:variant>) | 
| Description | 
| Returns 0 if <data> is actually set to some non-empty value and 1 otherwise. Since KVIrc treats unset variables as empty ones then this function is the exact opposite of $isset. | 
| See also | 
| $isset |