php - 如何通过特殊字符连接php中的两个数组元素值？

Question

我在下面给出了两个数组

Array
(
    [0] => 2013-07-09
    [1] => 2013-07-16
    [2] => 2013-07-23
    [3] => 2013-07-30
)

Array
(
    [0] => 2013-07-16
    [1] => 2013-07-23
    [2] => 2013-07-30
    [3] => 2013-08-06

)

我想通过特殊字符连接两个数组元素值。给定的输出如下：

Array
(
    [0] => 2013-07-09 : 2013-07-16
    [1] => 2013-07-16 : 2013-07-23
    [2] => 2013-07-23 : 2013-08-30
    [3] => 2013-08-30 : 2013-08-06

)

Answer 1

array_map像这样尝试

$combined = array_map(function($a, $b) { return $a . ' : ' . $b; }, $array1, $array2);

Answer 2

$a1 = new ArrayIterator($array1);
$a2 = new ArrayIterator($array2);

$it = new MultipleIterator;

$it->attachIterator($a1);

$it->attachIterator($a2);

foreach($it as $e) {

        $array3[] = $e[0]." : ".$e[1]);
}

Answer 3

这样做，$combined_array是你的答案

$array1 = Array
(
    [0] => 2013-07-09
    [1] => 2013-07-16
    [2] => 2013-07-23
    [3] => 2013-07-30
);
$array2 = Array
(
    [0] => 2013-07-16
    [1] => 2013-07-23
    [2] => 2013-07-30
    [3] => 2013-08-06

);
$combined_array = array();
foreach($array1 as $key=>$value)
{
    $combined_array[$key]=$value." : ".$array2[$key];
}