======is_float======
WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0
Check if a variable is a float
====Description====
int
is_float (
mixed
$variable
)
Check to see if a variable or value is of type float (a floating point number)
====Parameter====
$variable: Variable or expression to be evaluated
====Return Values====
Integer: 1 (true) if float, 0 (false) if not a float
====Examples====
$x=1;
print(is_float($x)); // outputs 0, $x is an integer
$y=1.0;
print(is_float($y)); // outputs 1, $y is a float
$z="1.0";
print(is_float($z)); // outputs 0, $z is a string
?>
====Notes====
This function checks ONLY the type of the variable, not the data that it holds!
To test if a variable contains a number or is a numeric string (such as form input, which is always a string), you should use [[is_numeric()]].
====See Also====
[[is_int()]] - Check if a variable is an integer
[[is_numeric()]] - Check if a value is numeric (int, float or numeric string)
[[is_string()]] - Check if a variable is a string
[[is_array()]] - Check if a variable is an array
[[isset()]] - Check if a variable exists
[[uphp:variables|uPHP Variable Types and Limits]]