php 在循环中创建多维数组
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Create a multidimensional array in a loop
提问by r1400304
I am trying to create an array like this in a loop:
我正在尝试在循环中创建这样的数组：
$dataPoints = array(
array('x' => 4321, 'y' => 2364),
array('x' => 3452, 'y' => 4566),
array('x' => 1245, 'y' => 3452),
array('x' => 700, 'y' => 900),
array('x' => 900, 'y' => 700));
with this code
用这个代码
$dataPoints = array();
$brands = array("COCACOLA","DellChannel","ebayfans","google",
"microsoft","nikeplus","amazon");
foreach ($brands as $value) {
$resp = GetTwitter($value);
$dataPoints = array(
"x"=>$resp['friends_count'],
"y"=>$resp['statuses_count']);
}
but when loop completes my array looks like this:
但是当循环完成时，我的数组如下所示：
Array ( [x] => 24 [y] => 819 )
回答by Hamish
This is because you're re-assigning $dataPointsas a new array on each loop.
这是因为您$dataPoints在每个循环中重新分配为一个新数组。
Change it to:
将其更改为：
$dataPoints[] = array("x"=>$resp['friends_count'],"y"=>$resp ['statuses_count']);
This will append a new array to the end of $dataPoints
这将追加一个新数组到末尾 $dataPoints
回答by rajmohan
use array_merge($array1,$array2)make it simple use two array one for use in iteration and another for storing the final result. checkout the code.
use array_merge($array1,$array2)make it simple 使用两个数组，一个用于迭代，另一个用于存储最终结果。签出代码。
$dataPoints = array();
$dataPoint = array();
$brands = array(
"COCACOLA","DellChannel","ebayfans","google","microsoft","nikeplus","amazon");
foreach($brands as $value){
$resp = GetTwitter($value);
$dataPoint = array("x"=>$resp['friends_count'],"y"=>$resp ['statuses_count']);
$dataPoints = array_merge($dataPoints,$dataPoint);
}
回答by Kirzilla
Every iteration you're overwriting $dataPoints variable, but you should add new elements to array...
每次迭代都会覆盖 $dataPoints 变量，但您应该向数组添加新元素...
$dataPoints[] = array("x"=>$resp['friends_count'],"y"=>$resp ['statuses_count']);
$dataPoints[] = array("x"=>$resp['friends_count'],"y"=>$resp ['statuses_count']);
