从 Foreach Loop PHP 创建关联数组
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Create associative array from Foreach Loop PHP
提问by tmartin314
I have this foreach loop:
我有这个 foreach 循环：
foreach($aMbs as $aMemb){
$ignoreArray = array(1,3);
if (!in_array($aMemb['ID'],$ignoreArray)){
$aMemberships[] = array($aMemb['ID'] => $aMemb['Name']);
}
}
This prints out the right fields but they are arrays inside arrays. I need the foreach loop to output a simple array like this one:
这会打印出正确的字段，但它们是数组内的数组。我需要 foreach 循环来输出一个像这样的简单数组：
$aMemberships = array('1' => 'Standard', '2' => 'Silver');
What am I doing wrong?
我究竟做错了什么？
回答by GWW
You need to change your $aMemberships assignment
您需要更改您的 $aMemberships 分配
$aMemberships[] = $aMemb['Name'];
If you want an array
如果你想要一个数组
$aMemberships[$aMemb['ID']] = $aMemb['Name'];
if you want a map.
如果你想要地图。
What you are doing is appending an array to an array.
您正在做的是将数组附加到数组。
回答by ShivarajRH
Associative array in foreach statement:
foreach 语句中的关联数组：
foreach($nodeids as $field => $value) {
$field_data[$field]=$value;
}
Output:
输出：
Array(
$field => $value,
$field => $value
...
);
insertion in CodeIgniter:
在 CodeIgniter 中插入：
$res=$this->db->insert($bundle_table,$field_data);
回答by Tim Gautier
Instead of
代替
$aMemberships[] = array($aMemb['ID'] => $aMemb['Name']);
Try
尝试
$aMemberships[$aMemb['ID']] = $aMemb['Name'];
回答by codaddict
Your existing code uses incremental key and uses the array as corresponding value.
To make make $aMembershipsan associative array with key as $aMemb['ID']and value being $aMemb['Name']you need to change
您现有的代码使用增量键并将数组用作相应的值。要$aMemberships使用键作为$aMemb['ID']和值创建关联数组，$aMemb['Name']您需要更改
$aMemberships[] = array($aMemb['ID'] => $aMemb['Name']);
in the foreach loop to:
在 foreach 循环中：
$aMemberships[$aMemb['ID']] = $aMemb['Name']);
回答by mklfarha
it prints an array of arrays because you are doing so in this line
它打印一个数组数组，因为您在这一行中这样做
$aMemberships[] = array($aMemb['ID'] => $aMemb['Name']);
where you [] after a variable your are indicating to assign the value in a new row of the array and you are inserting an other array into that row
您 [] 在一个变量之后，您指示在数组的新行中分配值，并且您将另一个数组插入该行
so you can use the the examples the others haver already gave or you can use this method:
所以你可以使用其他人已经给出的例子，或者你可以使用这种方法：
int array_push ( array &$array , mixed $var [, mixed $... ] )
here is an example that you can find in the api
这是您可以在 api 中找到的示例
<?php
$stack = array(0=>"orange",1=>"banana");
array_push($stack, 2=>"apple",3=>"raspberry");
print_r($stack);
?>
//prints
Array
(
[0] => orange
[1] => banana
[2] => apple
[3] => raspberry
)
回答by Gufran Hasan
You get key and valueof an associative array in foreach loop and create an associative with key and value pairs.
您key and value在 foreach 循环中获得一个关联数组，并创建一个具有键和值对的关联数组。
$aMemberships=array();//define array
foreach($aMbs as $key=>$value){
$ignoreArray = array(1,3);
if (!in_array($key,$ignoreArray)){
$aMemberships[$key] = $value;
}
}
It will give you an expected output:
它会给你一个预期的输出：
array('1' => 'Standard', '2' => 'Silver');
