PHP 手冊
上一頁 |  | 下一頁

# floatval

(PHP 4 >= 4.2.0, PHP 5)

floatval -- Get float value of a variable

## Description

float floatval ( mixed var)

Returns the float value of var.

Var may be any scalar type. You cannot use floatval() on arrays or objects.

`<?php $var = '122.34343The'; $float_value_of_var = floatval($var); echo $float_value_of_var; // prints 122.34343 ?>`

See also intval(), strval(), settype() and Type juggling.

上一頁 | 最開頭 | 下一頁
empty | 上一層 | get_defined_vars