is_float
(PHP 4, PHP 5)
is_float — Finds whether the type of a variable is float
Description
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().
Parameters
-
var -
The variable being evaluated.
Return Values
Returns TRUE if var is a float,
FALSE otherwise.
Examples
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)
See Also
- is_bool() - Finds out whether a variable is a boolean
- is_int() - Find whether the type of a variable is integer
- is_numeric() - Finds whether a variable is a number or a numeric string
- is_string() - Find whether the type of a variable is string
- is_array() - Finds whether a variable is an array
- is_object() - Finds whether a variable is an object
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