i have an array which looks like this:
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,我编写了一个函数。
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;
}
将数组转换为以下格式
Array (
[1] => Clown Fish )
[L] => Liter )
[2] => Elephant )
[3] => Water Bottle )
[4] => Office Seating )
[5] => Green Green Grass )
)
但实际输出结果是:
Array (
[0] => Clown Fish )
[L] => Liter )
[1] => Elephant )
[2] => Water Bottle )
[3] => Office Seating )
[4] => Green Green Grass )
)
我猜这与array_merge本身的特性有关,根据php手册的说明,"输入数组中带有数字键的值将使用从零开始的递增键重新编号到结果数组中。"
是否有一种方法可以使用array_merge或不使用它来产生预期的结果?