Question

我想使用PHP为这个ArrayList创建一个ARRAY（数组名称：＆＃34; queue＆＃34;）...我有php代码和下面的输出：

[
   {"datetime":"2016-06-16 17:32:32","qname":"5","qagent":"50","qevent":"7","info1":"2","info2":"91","info3":"1"},
   {"datetime":"2016-06-16 17:31:01","qname":"5","qagent":"50","qevent":"10","info1":"2","info2":"1466069459.6496","info3":"1"},
   {"datetime":"2016-06-16 16:28:41","qname":"5","qagent":"53","qevent":"8","info1":"2","info2":"113","info3":"1"},
   {"datetime":"2016-06-16 16:26:48","qname":"5","qagent":"53","qevent":"10","info1":"2","info2":"1466065606.6445","info3":"1"},
   {"datetime":"2016-06-16 15:47:25","qname":"5","qagent":"50","qevent":"7","info1":"4","info2":"454","info3":"1"},
   {"datetime":"2016-06-16 15:39:51","qname":"5","qagent":"50","qevent":"10","info1":"4","info2":"1466062787.6382","info3":"3"},
   {"datetime":"2016-06-16 15:27:45","qname":"5","qagent":"50","qevent":"8","info1":"5","info2":"339","info3":"1"},
   {"datetime":"2016-06-16 15:22:06","qname":"5","qagent":"50","qevent":"10","info1":"5","info2":"1466061721.6337","info3":"4"},
   {"datetime":"2016-06-16 15:18:16","qname":"5","qagent":"53","qevent":"7","info1":"2","info2":"50","info3":"1"},
   {"datetime":"2016-06-16 15:17:26","qname":"5","qagent":"53","qevent":"10","info1":"2","info2":"1466061444.6325","info3":"1"},
   {"datetime":"2016-06-16 15:14:06","qname":"5","qagent":"50","qevent":"7","info1":"5","info2":"60","info3":"1"},
   {"datetime":"2016-06-16 15:13:06","qname":"5","qagent":"50","qevent":"10","info1":"5","info2":"1466061181.6318","info3":"4"},
   {"datetime":"2016-06-16 14:52:52","qname":"5","qagent":"53","qevent":"7","info1":"3","info2":"50","info3":"1"},
   {"datetime":"2016-06-16 14:52:02","qname":"5","qagent":"53","qevent":"10","info1":"3","info2":"1466059919.6275","info3":"3"},
   {"datetime":"2016-06-16 14:49:50","qname":"5","qagent":"28","qevent":"1","info1":"1","info2":"1","info3":"2"},
   {"datetime":"2016-06-16 14:25:44","qname":"5","qagent":"53","qevent":"7","info1":"47","info2":"162","info3":"1"},
   {"datetime":"2016-06-16 14:23:02","qname":"5","qagent":"53","qevent":"10","info1":"47","info2":"1466058176.6227","info3":"5"},
   {"datetime":"2016-06-16 14:22:51","qname":"5","qagent":"53","qevent":"0","info1":"15000","info2":"","info3":""},
   {"datetime":"2016-06-16 14:22:35","qname":"5","qagent":"50","qevent":"0","info1":"0","info2":"","info3":""},
   {"datetime":"2016-06-16 14:22:30","qname":"5","qagent":"53","qevent":"0","info1":"15000","info2":"","info3":""}
]

这是我的PHP代码：

<?php 

$con=mysqli_connect("localhost","root","");
mysqli_select_db($con,"qstatslite")or die("error");

$q = mysqli_query($con,"SELECT * FROM queue_stats ORDER BY queue_stats_id DESC LIMIT 20");


$return_arr = array();

while ($row = mysqli_fetch_array($q)) {
//$return_arr['queue_stats_id'] = $row['queue_stats_id'];
$row_array['datetime'] = $row['datetime'];
$row_array['qname'] = $row['qname'];
$row_array['qagent'] = $row['qagent'];
$row_array['qevent'] = $row['qevent'];
$row_array['info1'] = $row['info1'];
$row_array['info2'] = $row['info2'];
$row_array['info3'] = $row['info3'];

    array_push($return_arr,$row_array);
}

$output = json_encode(array('return_arr' => $return_arr));
echo json_encode($return_arr);

?>

我希望输出有一个标题＆＃34; queue＆＃34;在列表之前..我们的帮助将不胜感激。 TY

Answer 1

这里有一个JSON数组。如果你想将它转换为PHP中的数组，那么就有一个特殊的功能。

http://php.net/manual/en/function.json-decode.php

用法：

$queue = json_decode($json);

完成后，您可以使用PHP的list()函数。

http://php.net/manual/en/function.list.php

用法：

$info = array('coffee', 'brown', 'caffeine');
list($drink, $color, $power) = $info;
echo "$drink is $color and $power makes it special.\n";

- 如果你想将JSON翻译成PHP，可以使用你似乎已经知道的json_encode();。但是，您使用json_encode()两次，这可能会导致问题。

$return_arr = array();

while ($row = mysqli_fetch_array($q)) {
//$return_arr['queue_stats_id'] = $row['queue_stats_id'];
$row_array['datetime'] = $row['datetime'];
$row_array['qname'] = $row['qname'];
$row_array['qagent'] = $row['qagent'];
$row_array['qevent'] = $row['qevent'];
$row_array['info1'] = $row['info1'];
$row_array['info2'] = $row['info2'];
$row_array['info3'] = $row['info3'];

    array_push($return_arr,$row_array);
}

$output = json_encode(array('queue' => $return_arr));
echo $output;

现在，如果您要将此JSON发送回javascript或其他任何内容，它将如下所示：

//get values
jsonData.queue.datetime;
jsonData.queue.qagent;

如果您只是简单地将其解码回php数组，它将如下所示：

<?php
  $queue = json_decode($output)['queue'];
?>

如何创建ARRAY？

1 个答案: