PHP: is_float - Manual

Описание

bool is_float ( mixed var )

Finds whether the given variable is a float.

Замечание: 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().

Список параметров

var: The variable being evaluated.

Возвращаемые значения

Returns TRUE if var is a float, FALSE otherwise.

is_float

phper
25-Jan-2006 12:08


A better way to check for a certain number of decimal places is to use :



$num_dec_places = 2;

number_format($value,$num_dec_places);

kirti dot contact at gmail dot com
18-Oct-2005 11:18


To check a float only should contain certain number of decimal places, I have used this simple function below



<?

function is_deccount($number,$decimal=2){

    $m_factor=pow(10,$decimal);

    if((int)($number*$m_factor)==$number*$m_factor)

        return true;

    else

        return false;

 }    

?>

is_float

Описание

Список параметров

Возвращаемые значения

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