is_double
is_int
Variable handling Funkcje
PHP Manual

# is_float

(PHP 4, PHP 5)

is_float — Finds whether the type of a variable is float

### Opis

bool is_float ( mixed `$var` )

Finds whether the type of the given variable is float.

> Informacja: 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().

### Parametry

`var`

  The variable being evaluated.

### Zwracane wartości

Returns `TRUE` if `var` is a float , `FALSE` otherwise.

### Przykłady

Przykład #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));
?>`

Powyższy przykład wyświetli:

    is float
    bool(false)
    bool(false)
    bool(true)
    bool(true)
    bool(false)

### Zobacz też:

- 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

is_double
is_int
Variable handling Funkcje
PHP Manual