<?php
include("../wp-config.php");
// set header for json mime type
header('Content-type: application/json;');
$cat_id=array(12,13,14);
$post=array('category__in' => $cat_id,'posts_per_page=-1');
$category_query = new WP_Query($post);
// print_r($category_query);
while ($category_query->have_posts())
{
$jsonpost=$category_query->the_post();
$id=$post->ID;
$post_title=get_the_title();
$image=wp_get_attachment_url(get_post_thumbnail_id($id, 'thumbnail'));
$content=strip_tags(apply_filters('the_content',$post->post_content));
/* echo $content;
echo $image;*/
$jsonpost=array('post_title'=>$post_title,'post_content' =>$content,'post_image' => $image);
/*======== PRODUCT COLLECTION OUTPUT AS JSON FORMAT ======*/
$output['post_details'] = $jsonpost;
echo (json_encode($output,JSON_UNESCAPED_SLASHES));
}
//print_r($jsonpost);exit();
$post1=array('cat'=> 12,'order' => 'DESC');
$category_query1 = new WP_Query($post1);
while ($category_query1->have_posts())
{
$jsonpost1=$category_query1->the_post();
$id=$post->ID;
$post_title=get_the_title();
$image=wp_get_attachment_url(get_post_thumbnail_id($id, 'thumbnail'));
$content=strip_tags(apply_filters('the_content',$post->post_content));
$jsonpost1=array('post_title'=>$post_title,'post_content'=>$content,'post_image'=>$image);
$output1['Latest_news'] = $jsonpost1;
/*======== PRODUCT COLLECTION OUTPUT AS JSON FORMAT ======*/
// print_r($output);
echo (json_encode($output1,JSON_UNESCAPED_SLASHES));
}
//wp_reset_postdata();
?>
我得到的结果如下：
{"post_details":
{"post_title":"Breaking-News2","post_content":"Lorem Ipsum is simply dummy text of the printing and typesetting industry.\n","post_image":"http://localhost/police/wp-content/uploads/2014/09/1022201314344PM_635_nokia-Lumia-1520.jpeg"}
}
{"post_details":
{"post_title":"breaking news1","post_content":"Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia,\n","post_image":"http://localhost/police/wp-content/uploads/2014/09/breaking_news.jpg"}
}
{"post_details":
{"post_title":"standard stories","post_content":"Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia,\n","post_image":"http://localhost/police/wp-content/uploads/2014/09/index.jpg"}
}
{"post_details":
{"post_title":"breaking-news","post_content":"The first line of Lorem Ipsum, “Lorem ipsum dolor sit amet..”, comes from a line in section 1.10.32.\n","post_image":"http://localhost/police/wp-content/uploads/2014/09/breakingNews.jpg"}
}
{"post_details":
{"post_title":"call-out","post_content":"Lorem Ipsum has been the industry’s standard dummy tex\n","post_image":"http://localhost/police/wp-content/uploads/2014/09/callout.jpg"}
}
{"Latest_news":
{"post_title":"Breaking-News2","post_content":"Lorem Ipsum is simply dummy text of the printing and typesetting industry.\n","post_image":"http://localhost/police/wp-content/uploads/2014/09/1022201314344PM_635_nokia-Lumia-1520.jpeg"}
}
{"Latest_news":
{"post_title":"breaking news1","post_content":"Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia,\n","post_image":"http://localhost/police/wp-content/uploads/2014/09/breaking_news.jpg"}
}
{"Latest_news":
{"post_title":"breaking-news","post_content":"The first line of Lorem Ipsum, “Lorem ipsum dolor sit amet..”, comes from a line in section 1.10.32.\n","post_image":"http://localhost/police/wp-content/uploads/2014/09/breakingNews.jpg"}
}
但我希望以下列方式显示我的回复：
{
"post_details":
[
{
"post_title": "Breaking-News2",
"post_content": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. ",
"post_image": "http://localhost/police/wp-content/uploads/2014/09/1022201314344PM_635_nokia-Lumia-1520.jpeg"
},
{
"post_title": "breaking news1",
"post_content": "Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, ",
"post_image": "http://localhost/police/wp-content/uploads/2014/09/breaking_news.jpg"
},
{
"post_title": "standard stories",
"post_content": "Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, ",
"post_image": "http://localhost/police/wp-content/uploads/2014/09/index.jpg"
},
{
"post_title": "breaking-news",
"post_content": "The first line of Lorem Ipsum, “Lorem ipsum dolor sit amet..”, comes from a line in section 1.10.32. ",
"post_image": "http://localhost/police/wp-content/uploads/2014/09/breakingNews.jpg"
},
{
"post_title": "call-out",
"post_content": "Lorem Ipsum has been the industry’s standard dummy tex ",
"post_image": "http://localhost/police/wp-content/uploads/2014/09/callout.jpg"
}
],
"Latest_posts":
[
{
"post_title": "Breaking-News2",
"post_content": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. ",
"post_image": "http://localhost/police/wp-content/uploads/2014/09/1022201314344PM_635_nokia-Lumia-1520.jpeg"
},
{
"post_title": "breaking news1",
"post_content": "Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, ",
"post_image": "http://localhost/police/wp-content/uploads/2014/09/breaking_news.jpg"
},
{
"post_title": "breaking-news",
"post_content": "The first line of Lorem Ipsum, “Lorem ipsum dolor sit amet..”, comes from a line in section 1.10.32. ",
"post_image": "http://localhost/police/wp-content/uploads/2014/09/breakingNews.jpg"
}
]
}
在上面的结果中，所有类别中的所有帖子都显示在单个请求数据中，但我想在第一次使用 json格式的同一数据请求中获取输出。 。所以我需要帮帮我!!
答案 0 :(得分：1)
几点需要注意：
您需要做的是在for循环中创建一个正确的关联数组。一旦通过循环和循环完成，您可以json_encode完整的关联数组并回显它。
$jsonposts变量在您引用的代码中，$jsonposts变量在循环内部用于制作立即显示的单个post数组。它可以在您需要时声明。那是在循环内部。你也可以有一个全局数组（我在代码中放了op），你可以在循环迭代中推送完整输出的每个元素，最后编码为ad send。
请妥善缩进代码，以便在稍后阅读时帮助理解流程或向其他人提供支持。
include("../wp-config.php");
header('Content-type: application/json;');
/* Use this variable for preparing the result to be send back as json response */
$op = array();
$cat_args=array(
'orderby' => 'name',
'order' => 'ASC'
);
$categories=get_categories($cat_args);
foreach($categories as $category)
{
$args=array(
'showposts' => -1,
'category__in' => array($category->term_id),
'caller_get_posts'=>1
);
$posts=get_posts($args);
if ($posts) {
foreach($posts as $post) {
/* prepare individual item to be pushed into the result array */
$jsonpost = array();
$jsonpost['post_title']=get_the_title();
$jsonpost['content']=apply_filters('the_content', $post->post_content);
$jsonpost['image_url']=wp_get_attachment_url( get_post_thumbnail_id($id, 'thumbnail') );
$jsonpost['date']=get_the_date('d F Y');
/* push the item on to the result array */
$op[] = array('request' => 'all_posts',
'data'=> $jsonpost)
}
}
}
/* array should be complete at this point encode it as json string and send back */
echo json_encode($op);
您所显示的预期json结果是无效的json。您可以通过jsonlint.com查看相同内容。建议是将它变成
{"request":"all_posts","data": [
{"post_title":"Breaking News story1","content":"...."},
{"post_title":"Breaking News story1","content":"...."},
/* repeat elements here */
] }
要更改代码，它会生成类似上面提到的JSON。您必须在上述代码中进行以下更改。
更改行
$op[] = array('request' => 'all_posts',
'data'=> $jsonpost);
到
$op[] = $jsonpost;
并从
更改最后一行echo json_encode($op);
到
echo json_encode(array('request' => 'all_posts',
'data'=> $op));
答案 1 :(得分：0)
试试这个
<?php
include("../wp-config.php");
header('Content-type: application/json;');
$jsonpost = array();
//for each category, show all posts
$cat_args=array(
'orderby' => 'name',
'order' => 'ASC'
);
$categories=get_categories($cat_args);
//print_r($categories);
foreach($categories as $category)
{
$args=array(
'showposts' => -1,
'category__in' => array($category->term_id),
'caller_get_posts'=>1
);
//print_r($args);
$posts=get_posts($args);
if ($posts) {
foreach($posts as $post) {
//setup_postdata($post);
$jsonpost['post_title']=get_the_title();
$jsonpost['content']=apply_filters('the_content', $post->post_content);
$jsonpost['image_url']=wp_get_attachment_url( get_post_thumbnail_id($id, 'thumbnail') );
$jsonpost['date']=get_the_date('d F Y');
//echo $jsonpost['post_title'];
$output = array('request' => 'all_posts',
'data'=> $jsonpost);
/*======== PRODUCT COLLECTION OUTPUT AS JSON FORMAT ====== */
} // foreach($posts
echo (json_encode($output));
} // if ($posts
} // foreach($categories
答案 2 :(得分：0)
你能试试下面的代码。
<?php
include("../wp-config.php");
header('Content-type: application/json;');
// create new array to add all posts to
$jsonposts = array();
//for each category, show all posts
$cat_args=array(
'orderby' => 'name',
'order' => 'ASC'
);
$categories=get_categories($cat_args);
//print_r($categories);
foreach($categories as $category)
{
$args=array(
'showposts' => -1,
'category__in' => array($category->term_id),
'caller_get_posts'=>1
);
//print_r($args);
$posts=get_posts($args);
if ($posts) {
foreach($posts as $post) {
//setup_postdata($post);
$jsonpost = array();
$jsonpost['post_title']=get_the_title();
$jsonpost['content']=apply_filters('the_content', $post->post_content);
$jsonpost['image_url']=wp_get_attachment_url( get_post_thumbnail_id($id, 'thumbnail') );
$jsonpost['date']=get_the_date('d F Y');
//echo $jsonpost['post_title'];
// add the post to the new array
$jsonposts[] = $jsonpost;
/*======== PRODUCT COLLECTION OUTPUT AS JSON FORMAT ====== */
} // foreach($posts
// format as JSON
$output = array('request' => 'all_posts',
'data'=> $jsonposts);
echo (json_encode($output));
} // if ($posts
} // foreach($categories
答案 3 :(得分：0)
使用WordPress REST API：https://wordpress.org/plugins/json-rest-api/
获取这样的网址：
http://your-site.com/wp-json/posts?filter[category_name]=dogs
请注意，API的根URL可以随过滤器更改，不要假设其默认值。请改用json_url()。
使用WordPress HTTP API：
$response = wp_remote_get( $url, json_url() );
//make sure response isn't an error
if ( ! is_wp_error( $response ) ) {
//get the posts as an array
$posts = json_decode( wp_remote_retrieve_body( $response ) );
}
使用jQuery / AJAX：
$.ajax({
type: 'GET',
cache: true,
url: rootURL + '/posts?filter[category_name]=dogs,
dataType: 'json',
success: function(posts) {
//do stuff with posts
}
});
对于jQuery / AJAX示例，请务必使用json_url()将wp_localize_script()的值本地化到DOM中。
答案 4 :(得分：0)
首先需要注册GET方法的功能。语法如下。
// GET All Posts using API
add_action( 'rest_api_init', 'wp_api_show_Posts_endpoints' );
function wp_api_show_Posts_endpoints() {
register_rest_route( 'showPost', '/v2', array(
'methods' => 'GET',
'callback' => 'showPosts_callback',
));
}
这里我为逻辑采用了 showPosts_callback 函数（其内容需要在json视图上获取）
这是 GET方法逻辑的回调函数。
function showPosts_callback( $request_data ) {
global $wpdb;
$data = array();
$table = 'wp_posts';
$parameters = $request_data->get_params();
$post_type = $parameters['post_type'];
if($post_type!=''){
$re_query = "SELECT * FROM $table where post_type='$post_type'";
$pre_results = $wpdb->get_results($re_query,ARRAY_A);
foreach ($pre_results as $key => $value) {
$post_id = $value['ID'];
// Adding selected categories
$post_categories = wp_get_post_categories( $post_id );
$cats = array();
foreach($post_categories as $c){
$cat = get_category( $c );
$cats[] = array( 'name' => $cat->name, 'slug' => $cat->slug );
}
$pre_results[$key]['all_selected_categories']=$cats;
// Adding post featured image.
$featured_img_url = get_the_post_thumbnail_url($post_id, 'full');
$pre_results[$key]['featured_img_url']=$featured_img_url;
// Adding post metaboxes
$meta = array();
$meta = get_metadata($post_type,$post_id);
$pre_results[$key]['metafields'] = $meta;
}
return $pre_results;
}else{
$data['status']=' false ';
return $data;
}
}
然后您可以使用此URL
从任何地方获取记录Syntax:
www.yourdomain.com/wp-json/showPost/v2?post_type=post