isfloat . string . sncode
ISFLOAT
NAME
isfloat - Checks if the argument is a float number.
SYNOPSIS
isfloat(variable);
DESCRIPTION
This function is used to determine if the argument is a float number.
A float number start with an optional + or - followed by an optional number followed by a dot '.' followed by 0 or more numbers.
EXAMPLES
isinteger("a56");
isfloat("45.65");
isfloat(".65");
isfloat("4.");
isfloat("4");
isfloat("+4..");
isfloat("+.");
isfloat(".");
isfloat("");
isinteger("");
return
res=falsefalsetruetruetruetruefalsefalsefalsefalsefalse.
AUTHOR
Written by Pierre Laplante and Caroline Laplante, <laplante@sednove.com>
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