[英]How to rebuild assocciated array in PHP
因此,我正在使用Laravel和Laravel Excel扩展。 我想导入Excel文件,然后将文件中的所有数据插入MySQL数据库。 我知道数据库表列的计数和名称,但是Excel文件的计数和名称可能有所不同,因此,我请用户在数据库的Excel文件中指定nesseccary列名称。 例如,我们有一个DB表,其中的列名为“ name”,“ cost”和“ description”,因此,如果我有一个列“ column1”等于“ name”的文件,则应在表单中填写“ name”字段作为“ column1”,我必须与其他column做同样的事情,因此我面临着一个令人惊讶的问题。 我的代码带有注释:
Excel::load(Input::file('excel_import_file'), function($reader) {
echo '<pre>';
var_dump($reader->toArray());
echo '</pre>';
//$reader->each(function($sheet) {
//echo '<pre>';
//var_dump($sheet->toArray());
//echo '</pre>';
$input = Input::all(); //get all data from the input fields
$fields = [
'subcategory_id' => $input['subcategory_id'],
'seller_id' => Auth::user()->id,
'name' => null,
'description' => null,
'cost' => null,
'currency_id' => $input['currency_id'],
'warranty' => null,
'img' => null,
'date_expiration' => null
]; //prepare nesseccary data for DB table with a foreighn keys (subcategory_id, currency_id are coming from the drop-down lists, so seller_id is comming from the session)
$new_fields = []; //prepare new assocciated array for inserting to DB
foreach($reader->toArray() as $a) { //parsing data
foreach($a as $k => $v) { //parsing each row from the Excel file as key => value
foreach($input as $input_k => $input_v) {
$k == $input_v ? $k = $input_k : $k = $k; //replacing keys in array from the Excel file for correct DB table structure
}
//echo $k . ' ' . $v . '<br>';
foreach($fields as $field_k => $field_v) {
$field_k == $k ? $field_v = $v : $field_v = $field_v; //looking for same keys from $fields array and assigning values for each key which exists in $k
echo $field_k . ' - ' . $field_v . '<br>';
$new_fields = array_merge($new_fields, [$field_k => $field_v]); //I catch a problem here, I want to merge two assoc arrays, but I got array with a first value and a second with a second value
//SAGoodies::insertTo($new_fields);
}
//echo '<pre>';
//var_dump($sheet->toArray());
//echo '</pre>';
echo '<pre>';
var_dump($new_fields);
echo '</pre>';
}
}
//});
});
所以这是一个转储:
subcategory_id - 43
seller_id - 20
name - ololo
description -
cost -
currency_id - 1
warranty -
img -
date_expiration -
array(9) {
["subcategory_id"]=>
string(2) "43"
["seller_id"]=>
int(20)
["name"]=>
string(5) "ololo"
["description"]=>
NULL
["cost"]=>
NULL
["currency_id"]=>
string(1) "1"
["warranty"]=>
NULL
["img"]=>
NULL
["date_expiration"]=>
NULL
}
subcategory_id - 43
seller_id - 20
name -
description -
cost - 333
currency_id - 1
warranty -
img -
date_expiration -
array(9) {
["subcategory_id"]=>
string(2) "43"
["seller_id"]=>
int(20)
["name"]=>
NULL
["description"]=>
NULL
["cost"]=>
float(333)
["currency_id"]=>
string(1) "1"
["warranty"]=>
NULL
["img"]=>
NULL
["date_expiration"]=>
NULL
}
但是我想要这样的东西:
array(9) {
["subcategory_id"]=>
string(2) "43"
["seller_id"]=>
int(20)
["name"]=>
string(2) "ololo"
["description"]=>
NULL
["cost"]=>
float(333)
["currency_id"]=>
string(1) "1"
["warranty"]=>
NULL
["img"]=>
NULL
["date_expiration"]=>
NULL
}
我猜发生了,因为在这一行:
$new_fields = array_merge($new_fields, [$field_k => $field_v]);
我们每次都有空的$ new_fields。 有任何想法吗?!
因此,我通过Laravel Excel的选择方法找到了新的解决方案。 看起来像
Excel::load(Input::file('excel_import_file'), function($reader){
$input = Input::all();
$result = $reader->select(array($input['name'],
$input['description'],
$input['cost'],
$input['warranty'],
$input['img'],
$input['date_expiration']))->limit(500)->get();
$fields = [
'subcategory_id' => $input['subcategory_id'],
'seller_id' => Auth::user()->id,
'currency_id' => $input['currency_id'],
];
$new_array = [];
foreach($result->toArray() as $array) {
$new_array = array_merge($array, $fields);
SAGoodies::insertTo($new_array);
//echo '<pre>';
//var_dump($new_array);
//echo '</pre>';
}
});
这个解决方案有什么想法? 从$ result得到的数组中的想法。 我不想碰它的结构,不想重复。 我只是将来自$ fields的必需的外键添加到$ result数组中的每个数组。 简单有效的解决方案。
Ps比我需要请求格式和检查功能来检查加载文件的扩展名,它必须是xls,xlsx或csv并检查文件大小以防止现在加载太大的文件。
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