PHP: Fatal error: Call to a member function insert() on a non-object

Question

我在使用以下函数时遇到错误：调用非对象上的成员函数 insert()。请帮忙！

<?php 

$hostname = "dd";
$username = "cc";
$password = "aa";
$dbName = "bb";
MYSQL_CONNECT($hostname, $username, $password) OR DIE("Unable to connect to database");
@mysql_select_db("$dbName") or die( "Unable to select database");

subscribe($email, $firstname, $lastname, $company);

function subscribe($email, $first, $last, $company)
{
             global $wpdb;  
             $wpdb -> insert('aca11052015_subscribers', array(
            'First Name' => $first,
            'Last Name' => $last,
            'Company' => $company,
            'Email' => $email,
            'Date' => date("Y-m-d H:i:s")
        ));    
}

Answer 1

$wpdb 全局尚未启动，因为您正在运行通过 ajax 并独立调用该文件。

在包含该代码的文件中，如果您添加：

require_once('wp-load.php');

确保它指向该文件的正确路径（它应该在您站点的根目录中）一切应该开始工作。

PHP: Fatal error: Call to a member function insert() on a non-object

PHP: Fatal error: Call to a member function insert() on a non-object

php

database

wordpress

global