Question

我正在做类似这样的事情，但是即使JSON看起来像是正确的格式化，也会获得空值。为了避免返回的整数值被双引号括起来，我添加了absint。知道我哪里错了吗？ PHP v.5.5.23。感谢。

class.php

public function stats($interval) {          
        global $wpdb;
        $title = $this->title;

        if (is_object($wpdb) && is_a($wpdb, 'wpdb')) {
            $totals = $wpdb->get_results("
            SELECT * FROM wp_video_stats WHERE vid_title = '$title' AND DATE(updated) = DATE_SUB(DATE(NOW()), INTERVAL '$interval' DAY)"); 
         }

         foreach ($totals as $row) {
            $days = absint($row->days);
            $weeks = absint($row->weeks);
            $months = absint($row->months);     
         }

         return array(
           'title'=>$title,
           'days'=>$days,
           'weeks'=>$weeks,
           'months'=>$months
         );  

}

$array = $results->stats(2);

if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) &&  
   strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
   header('Content-type: application/json');

   echo json_encode($array);

   exit();
}

page.php文件

<script>
$.ajax({
    url : '/class.php',
        type : 'POST',
        dataType : 'json',
        success : function (data) {         
           console.log(data);  
        },
        error : function () {
           console.log("error");
        }
})
</script>

JSON

{
    "title":"title_test",
    "days":217,
    "weeks":37,
    "months":3
}

的console.log

Object {title: "title_test", days: null, weeks: null, months: null}

Answer 1

我最终想出来了。我的自定义页面中需要引用wp-load.php。值得庆幸的是，我发现这篇文章Cant access wp-load.php dynamically显示了一种方法，可以在本地包含对我有用的文件。

$root = dirname(dirname(dirname(dirname(__FILE__))));

if (file_exists($root.'/wp-load.php')) {
    require_once($root.'/wp-load.php');
} else {
    require_once($root.'/wp-config.php');
}

jQuery Ajax JSON对象值为NULL

1 个答案: