(PHP 4, PHP 5)
is_float — Finds whether the type of a variable is float
Finds whether the type of the given variable is float.
Note: To test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric().
The variable being evaluated.
Returns TRUE if var is a float, FALSE otherwise.
Example #1 is_float() example
<?php
if(is_float(27.25)) {
echo "is float\n";
}else {
echo "is not float\n";
}
var_dump(is_float('abc'));
var_dump(is_float(23));
var_dump(is_float(23.5));
var_dump(is_float(1e7)); //Scientific Notation
var_dump(is_float(true));
?>
The above example will output:
is float bool(false) bool(false) bool(true) bool(true) bool(false)