我有一个数组,看起来像这样:如何防止array_merge重新编号数字键
Array (
[0] => Array ([unit_id] => 1 [unit_name] => Clown Fish)
[1] => Array ([unit_id] => L [unit_name] => Liter)
[2] => Array ([unit_id] => 2 [unit_name] => Elephant )
[3] => Array ([unit_id] => 3 [unit_name] => Water Bottle)
[4] => Array ([unit_id] => 4 [unit_name] => Office Seating)
[5] => Array ([unit_id] => 5 [unit_name] => Green Green Grass)
)
然后,我写了一个函数
function array_to_list($arr_data, $str_key, $str_value) {
$arr_list = array();
if (is_array($arr_data)) {
foreach($arr_data as $arr_value) {
if (isset($arr_value[$str_key]) && isset($arr_value[$str_value])) {
$arr_list = array_merge($arr_list, array($arr_value[$str_key] => $arr_value[$str_value]));
}
}
}
return $arr_list;
}
到数组转换成这个样子
Array (
[1] => Clown Fish)
[L] => Liter)
[2] => Elephant)
[3] => Water Bottle)
[4] => Office Seating)
[5] => Green Green Grass)
)
但是输出,而不是
Array (
[0] => Clown Fish)
[L] => Liter)
[1] => Elephant)
[2] => Water Bottle)
[3] => Office Seating)
[4] => Green Green Grass)
)
我认为这与array_merge本身的性质有关,它根据php手册“输入数组中的值与数字键将使用从结果数组中的零开始的递增键重新编号。”
有没有办法让我可以产生有或没有array_merge的预期结果?
http://www.programmingfacts.com/merging-arrays-with-reindex-and-without-reindexing/ – PlagueEditor
感谢回答如此之快。看到解决方案非常简单,但我在前段时间使用Google搜索时找不到它,这让我很尴尬。谢谢。 – dqiu