# Function Reference

StringIsDigit

Checks if a string contains only digit (0-9) characters.

StringIsDigit ( "string" )

Parameters

string | The string to check

Return Value

Success: | Returns 1.
Failure: | Returns 0 if string contains non-digits.

Remarks

See examples.

Related

StringIsAlNum, StringIsAlpha, StringIsASCII, StringIsLower, StringIsSpace, StringIsUpper, StringIsXDigit

Example

StringIsDigit("12333") ;returns 1
StringIsDigit("1.5") ;returns 0 due to decimal point
StringIsDigit("1 2 3") ;returns 0 due to whitespace
StringIsDigit("") ;returns 0