你好，先生，下面是我的多维数组，其中包含特定索引上的一些缺失值
$array1=数组([2] =>阵列([1] =>2[2] =>4[3] =>9)
[3] => Array
(
[1] => 4
[2] => 6
[3] =>
)
[4] => Array
(
[1] => 4
[2] => 6
[3] => 7
)
[5] => Array
(
[1] => 2
[2] => 4
[3] =>
)
)
及以下是我的第二个数组我想把索引3和4的array2值放入$array1索引3和4.但我不想替换整个数组值。我只想替换$array1中为空的值
$array2=数组([3] =>阵列([1] =>2[2] =>4[3] =>9)
[5] => Array
(
[1] => 4
[2] => 6
[3] => 7
)
)
以下所需输出，其中我显示单个qoutes中的替换值）
$array1=数组([2] =>阵列([1] =>2[2] =>4[3] =>9)
[3] => Array
(
[1] => 4
[2] => 6
[3] => '9'
)
[4] => Array
(
[1] => 4
[2] => 6
[3] => 7
)
[5] => Array
(
[1] => 2
[2] => 4
[3] => '7'
)
这就是：
$array1 = array("2"=> array("1"=>"2", "2"=>"4", "3"=>"9"),
"3"=> array("1"=>"4", "2"=>"6", "3"=>""),
"4"=> array("1"=>"4", "2"=>"6", "3"=>"7"),
"5"=> array("1"=>"2", "2"=>"4", "3"=>"")
);
$array2 = array("3"=> array("1"=>"2", "2"=>"4", "3"=>"9"),
"5"=> array("1"=>"4", "2"=>"6", "3"=>"7")
);
foreach ($array1 as $key => $value) {
foreach ($value as $key2 => $value2) {
if($value2 == ""){
$array1[$key][$key2] = $array2[$key][$key2];
}
}
}
echo '<pre>';
print_r($array1);
echo '</pre>';
输出：
Array
(
[2] => Array
(
[1] => 2
[2] => 4
[3] => 9
)
[3] => Array
(
[1] => 4
[2] => 6
[3] => 9
)
[4] => Array
(
[1] => 4
[2] => 6
[3] => 7
)
[5] => Array
(
[1] => 2
[2] => 4
[3] => 7
)
)