Core Function isDigit

isDigit( <expression> )

Description

Checks if string only contains numbers.

Parameters

expression

The string to use.

Return Value

Success: Returns 1.

Failure: Returns 0.

Remarks

Remember this function will NOT return true if the string is a valid float with decimal point if you wish to also allow floats check out isNumeric( <expression> ) or isFloat( <expression> ).

Example

$str = "The quick brown fox";
MsgBox(     isDigit($str)      );