PHP에서 숫자 형식을 지정하는 간단한 예입니다. number_format 함수 사용 예입니다.

print number_format(100000.56 );
?>

例2，number_format($n, $p, $t, $d) rounds $n to $p decimal places, using $t as the thousands separator and $d as the decimal separator.

    echo "Total charge is ", number_format($total, 2, ".", ","), " Euros";
?>

例3，number_format函数用于English format and Italian format

    $a = 1232322210.44;
    echo number_format ($a, 2);   // English format
    echo "n";
    echo number_format ($a, 2, ',', '.'); // Italian format
    echo "n";
?>

例4，输出格式化的数字形式

print "The population of the US is about:";
print number_format(285266237);
?>