The order problem analysis of the return data of Ajax request _ajax related

This article analyzes the order of the return data of Ajax requests. Share to everyone for your reference, specific as follows:

When Ajax requests a url,php backend processing, the array is formatted as follows:

Copy Code code as follows:

$a = Array ('-1 ' =>, '-3 ' => 2, ' 0 ' => ' 5 ', '-2 ' => 4);

Then use the Asort function of PHP to sort the array by value in ascending order, as follows:

Copy Code code as follows:

$a = Array (' 3 ' => 2, '-2 ' => 4, ' 0 ' => ' 5 ', '-1 ' => 10);

The return value that the front-end Ajax receives is still unordered.

Possible causes are: Because the key value is a character swap, JS to the data to reorder processing

The processing programme is as follows:

$i = 0;
foreach ($data as $k => $v) {
   $tmp [$i] [' data '] = $v;
   $tmp [$i] [' key '] = $k;
   $i + +;
}

At this point the data is as follows:

{"
  rows": [
    {
      "data": "2",
      "key": 0-3
    },
    {
      "data": "4",
      "key": -12
    },
    {
      "Data": "5",
      "key": 0
    },
    {
      "data": "Ten",
      "key":-1
    }
  ]
}

Ajax receive processing, the data is correct.

I hope this article will help you with Ajax programming.