$str.isdigits
Check whether the string is digits.
Syntax:
$str.isdigits( string )
Returns:
true – if the string is digits.
false – otherwise
Version Since:
1.0
Example:
$str.isdigits(“1234”)= true
The string “1234” is digits.
$str.isdigits($getSIPuser(To))= true
If the SIP user name in To URI is digits.