Php 需要帮助设置json数组吗
数据库查询返回我循环使用的几行,如下所示:Php 需要帮助设置json数组吗,php,javascript,arrays,json,jsonp,Php,Javascript,Arrays,Json,Jsonp,数据库查询返回我循环使用的几行,如下所示: foreach ($query->result() as $row) { $data[$row->post_id]['post_id'] = $row->post_id; $data[$row->post_id]['post_type'] = $row->post_type; $data[$row->post_id]['post_t
foreach ($query->result() as $row) {
$data[$row->post_id]['post_id'] = $row->post_id;
$data[$row->post_id]['post_type'] = $row->post_type;
$data[$row->post_id]['post_text'] = $row->post_text;
}
如果我json\u encode
生成的数组($a['stream']
),我会得到
但是json
实际上应该是这样的:
{
"stream": {
"posts": [{
"post_id": "1029",
"post_type": "1",
"post_text": "bla1",
},
{
"post_id": "1030",
"post_type": "3",
"post_text": "bla2",
},
{
"post_id": "1031",
"post_type": "2",
"post_text": "bla3",
}]
}
}
我应该如何构建我的数组以使这个
json
正确?无论如何,这是您应该做的:
foreach ($query->result() as $row) {
$data['posts']['post_id'] = $row->post_id;
$data['posts']['post_type'] = $row->post_type;
$data['posts']['post_text'] = $row->post_text;
}
...
$posts = array();
foreach ($query->result() as $row) {
$post = array();
$post['post_id'] = $row->post_id;
$post['post_type'] = $row->post_type;
$post['post_text'] = $row->post_text;
$posts[] = $post;
}
$data['posts'] = $posts;
...
一点说明:您必须根据从数据库获得的信息构建一个对象,即$post
。这些对象中的每一个都需要添加到一个数组中,即$posts
。来自数据库的帖子数组被设置为$data
的posts
键,即$data['posts']
如何
...
$posts = array();
foreach ($query->result() as $row) {
$post = array();
$post['post_id'] = $row->post_id;
$post['post_type'] = $row->post_type;
$post['post_text'] = $row->post_text;
$posts[] = $post;
}
$data['posts'] = $posts;
...
<?php
$myData = array();
$myData['posts'][] = array('post_id' => 3, 'post_type' => 343, 'post_text' => 'sky muffin pie');
$myData['posts'][] = array('post_id' => 4, 'post_type' => 111, 'post_text' => 'Mushroom chocolate banana');
$myData['posts'][] = array('post_id' => 231, 'post_type' => 888, 'post_text' => 'Cucumber strawberry in the sky');
$theStream['stream'] = $myData;
$json = json_encode($theStream);
echo 'JSON:<Br/>';
echo $json;
{
"stream":
{ "posts":[
{"post_id":3,"post_type":343,"post_text":"sky muffin pie"},
{"post_id":4,"post_type":111,"post_text":"Mushroom chocolate banana"},
{"post_id":231,"post_type":888,"post_text":"Cucumber strawberry in the sky"}]
}
}