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