php仅添加第一个数字而不是整数

问题描述

| 我最近将网站移到了Blue Host上，此功能是循环的一部分：

if ($InvoiceType == \'18\')
{
    echo \'Sum Before addition = \' . $sumInvoice . \'<br/>\';
    $sumInvoice += $complete[$key][5];
    print \'Invoice being added = \' . $complete[$key][5] . \'<br/>\' 
        . \'Sum after addition = \'. $sumInvoice . \'<br/>\';
}       

返回此：

Sum Before addition = 0
Invoice being added = 15174.20
Sum after addition = 1
Sum Before addition = 1
Invoice being added = 4604.25
Sum after addition = 5
Sum Before addition = 5
Invoice being added = 63810.83
Sum after addition = 11

$ complete转储：

Array
(
    [0] => Array
    (
        [0] => 2161
        [1] => 638697
        [2] => CLIV0286
        [3] => Central Medical Supply Inc.
        [4] => 0.00
        [5] => 15174.20
        [6] => 04/01/2011
        [7] => 2/1-2/28/11 Fairlawn
        [8] => PM2
        [9] => 18
    )
    [1] => Array
    (
        [0] => 2161
        [1] => 638698
        [2] => CLIV0286
        [3] => Central Medical Supply Inc.
        [4] => 0.00
        [5] => 4604.25
        [6] => 04/01/2011
        [7] => 2/1-2/28/11 Atrium
        [8] => PM2
        [9] => 18
    )
    [2] => Array
        (
        [0] => 2161
        [1] => 638699
        [2] => CLIV0286
        [3] => Central Medical Supply Inc.
        [4] => 0.00
        [5] => 63810.83
        [6] => 04/01/2011
        [7] => 2/1-2/28/11 Parsippany
        [8] => PM2
        [9] => 18
    )
)

我究竟做错了什么？     

解决方法

所以这行不通吗？

$sumInvoice = 0;
//Init Loop
if ($InvoiceType == \'18\')
{
    echo \'Sum Before addition = \' . $sumInvoice . \'<br/>\';
    $sumInvoice = 0 + floatval(trim($complete[$key][5])) + floatval($sumInvoice);
    print \'Invoice being added = \' . $complete[$key][5] . \'<br/>\' 
        . \'Sum after addition = \'. $sumInvoice . \'<br/>\';
}

试试这个小规模的测试：

$val = \"10.25\";
echo (floatval($val) + 10);

    ,

$sumInvoice += (float)$complete[$key][5];

要么

$sumInvoice += floatval( $complete[$key][5] );

floatval（）