# P_exists
## Syntax:
@exists**({variable})**
## Use Case:
Checks if a specific variable is defined in the script engine.
## Arguments:
- **{variable}**: The name of the variable to check.
## Examples:
1. **/if {@exists(myVar)} {/echo Found}**
    (Outputs '1' or '0')
## See Also:
@isempty