Added in 4.3
$isnum(text [, cdens])
Returns $true if the text is a number, otherwise $false.
Same as $isnumber.
Parameters
| Parameter | Description |
| c | Enables 's' and 'd', partial TODO |
| d | Allows decimal numbers. |
| e | Allows scientific (exponential) notations. |
| n | Allows regular numbers. |
| s | Allows leading + and minus signs. |
Example
; Returns $false //echo -ag $isnum(abc) ; Returns $true //echo -ag $isnum(555)