Question

我有几个月的数组=＆gt;价值观，如此......

$months = array(
  'January'   => 0.00,
  'February'  => 0.00,
  'March'     => 0.00,
  'April'     => 0.00,
  'May'       => 0.00,
  'June'      => 0.00,
  'July'      => 0.00, 
  'August'    => 0.00,
  'September' => 0.00,
  'October'   => 0.00,
  'November'  => 0.00,
  'December'  => 0.00,
)

我想与临时数组中的值结合...

$temp = array(
  'February'  => 200.00,
  'May'       => 17.50,
)

这样我就得以下......

$months = array(
  'January'   => 0.00,
  'February'  => 200.00, // Combined
  'March'     => 0.00,
  'April'     => 0.00,
  'May'       => 17.50,  // Combined
  'June'      => 0.00,
  'July'      => 0.00, 
  'August'    => 0.00,
  'September' => 0.00,
  'October'   => 0.00,
  'November'  => 0.00,
  'December'  => 0.00,
)

Answer 1

一个简单的方法是foreach：

foreach ($months as $month => $value) {
    // I check if the $temp array has the $month as key too
    if (key_exists($month, $temp)) {
        // I combine the $temp array value with the $months array value for the $month key
        $months[$month] += $temp[$month];
    }
}

循环后输出var_dump($months)：

array (size=12)
  'January' => float 0
  'February' => float 200
  'March' => float 0
  'April' => float 0
  'May' => float 17.5
  'June' => float 0
  'July' => float 0
  'August' => float 0
  'September' => float 0
  'October' => float 0
  'November' => float 0
  'December' => float 0

Answer 2

使用array_replace()

$result = array_replace($months, $temp);
print_r($result);

...给出

Array
(
    [January] => 0
    [February] => 200
    [March] => 0
    [April] => 0
    [May] => 17.5
    [June] => 0
    [July] => 0
    [August] => 0
    [September] => 0
    [October] => 0
    [November] => 0
    [December] => 0
)

Answer 3

您可以使用array_merge

结果

$months = array(
  'January'   => 0.00,
  'February'  => 0.00,
  'March'     => 0.00,
  'April'     => 0.00,
  'May'       => 0.00,
  'June'      => 0.00,
  'July'      => 0.00, 
  'August'    => 0.00,
  'September' => 0.00,
  'October'   => 0.00,
  'November'  => 0.00,
  'December'  => 0.00,
);
$temp = array(
  'February'  => 200.00,
  'May'       => 17.50,
);

$result  = array_merge($months, $temp);
echo "<pre>";
print_r($result);
echo "</pre>";
exit;

HowTo：将两个数组中的值与PHP中的相同键组合在一起

3 个答案: