php 如何使用键值对创建数组？
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How can I create an array with key value pairs?
提问by sanders
How can I add key value pairs to an array?
如何将键值对添加到数组中？
This won't work:
这行不通：
public function getCategorieenAsArray(){
$catList = array();
$query = "SELECT DISTINCT datasource_id, title FROM table";
if ($rs=C_DB::fetchRecordset($query)) {
while ($row=C_DB::fetchRow($rs)) {
if(!empty($row["title"])){
array_push($catList, $row["datasource_id"] ."=>". $row["title"] );
}
}
}
return($catList);
}
Because it gives me:
因为它给了我：
Array ( [0] => 1=>Categorie 1 [1] => 5=>Categorie 2 [2] => 2=>Caterorie 2 )
And I expect:
我期望：
Array ( [1] =>Categorie 1 [5] => Categorie 2 )
回答by joy
$data =array();
$data['user_code'] = 'JOY' ;
$data['user_name'] = 'JOY' ;
$data['user_email'] = '[email protected]';
回答by Gumbo
Use the square bracket syntax:
使用方括号语法：
if (!empty($row["title"])) {
$catList[$row["datasource_id"]] = $row["title"];
}
$row["datasource_id"]is the key for where the value of $row["title"]is stored in.
$row["datasource_id"]是值$row["title"]存储位置的键。
回答by WCWedin
My PHP is a little rusty, but I believe you're looking for indexed assignment. Simply use:
我的 PHP 有点生疏，但我相信您正在寻找索引分配。只需使用：
$catList[$row["datasource_id"]] = $row["title"];
In PHP arrays are actually maps, where the keys can be either integers or strings. Check out PHP: Arrays - Manualfor more information.
在 PHP 中数组实际上是映射，其中的键可以是整数或字符串。查看PHP: Arrays - Manual了解更多信息。
回答by Rajan Rawal
You can create the single value array key-value as
您可以将单值数组键值创建为
$new_row = array($row["datasource_id"]=>$row["title"]);
inside while loop, and then use array_mergefunction in loop to combine the each new $new_rowarray.
在 while 循环中，然后array_merge在循环中使用函数来组合每个新$new_row数组。
回答by Mahmoud
You can use this function in your application to add keys to indexed array.
您可以在应用程序中使用此函数将键添加到索引数组。
public static function convertIndexedArrayToAssociative($indexedArr, $keys)
{
$resArr = array();
foreach ($indexedArr as $item)
{
$tmpArr = array();
foreach ($item as $key=>$value)
{
$tmpArr[$keys[$key]] = $value;
}
$resArr[] = $tmpArr;
}
return $resArr;
}
回答by radhason power
No need array_push function.if you want to add multiple item it works fine. simply try this and it worked for me
不需要 array_push 函数。如果你想添加多个项目，它工作正常。试试这个，它对我有用
class line_details {
var $commission_one=array();
foreach($_SESSION['commission'] as $key=>$data){
$row= explode('-', $key);
$this->commission_one[$row['0']]= $row['1'];
}
}
