# P_isnumber
## Syntax:
@isnumber**({text})**
## Use Case:
Checks if a string represents a valid number. Returns 1 if true, 0 if false.
## Arguments:
- **{text}**: The string to test.
## Examples:
1. **/if {@isnumber($data)} {/echo Valid} {/echo Invalid}**
## See Also:
@val, @math