为什么我在 WordPress 中使用会话不断重定向到错误的帖子？

Question

我正在制作一个 WordPress 插件，允许用户在前端创建帖子，然后自动将他们重定向到他们刚刚创建的帖子。我必须使用两个单独的函数和一个会话变量来实现此目的，因为在发送标头后无法使用 wp_redirect 。我遇到的问题是会话变量没有发送刚刚创建的帖子的永久链接，而是发送上一篇帖子的永久链接。

下面的函数在用户提交表单时初始化

function create_post(){
    
if(is_user_logged_in())
{
    if(isset($_POST['ispost']))
    {
     
        global $current_user;
        get_currentuserinfo();

        $user_login = $current_user->user_login;
        $user_email = $current_user->user_email;
        $user_firstname = $current_user->user_firstname;
        $user_lastname = $current_user->user_lastname;
        $user_id = $current_user->ID;

        $post_title = $_POST['title'];
        $sample_image = $_FILES['sample_image']['name'];
        $post_content = $_POST['sample_content'];
        $category = $_POST['category'];

        $new_post = array(
            'post_title' => $post_title,
            'post_content' =>$post_content,
            'post_status' => 'publish',
            'post_type' => $post_type,
            'post_category' => $category
        );
    
        $pid = wp_insert_post($new_post);
        add_post_meta($pid, 'meta_key', true);
       $_SESSION['pid'] = get_post_field( 'post_name', $pid );
        if (!function_exists('wp_generate_attachment_metadata'))
        {
            require_once(ABSPATH . "wp-admin" . '/includes/image.php');
            require_once(ABSPATH . "wp-admin" . '/includes/file.php');
            require_once(ABSPATH . "wp-admin" . '/includes/media.php');
        }
        if ($_FILES)
        {
            foreach ($_FILES as $file => $array)
            {
                if ($_FILES[$file]['error'] !== UPLOAD_ERR_OK)
                {
                    return "upload error : " . $_FILES[$file]['error'];
                }
                $attach_id = media_handle_upload( $file, $pid );
            }
        }
        if ($attach_id > 0)
        {
            //and if you want to set that image as Post then use:
            update_post_meta($pid, '_thumbnail_id', $attach_id);
            $_SESSION['pid'] = $pid->post_name;
            
        }

        $my_post1 = get_post($attach_id);
        $my_post2 = get_post($pid);
        $my_post = array_merge($my_post1, $my_post2);
        
        
    }
    

}
else
{
    echo "<h2 style='text-align:center;'>User must be login for add post!</h2>";
}
}

这个函数应该将用户重定向到刚刚在 init 上创建的帖子

add_action('init', 'myInit');
function myInit() {
    if (isset($_POST['ispost'])) {
        $errors = myFormValidation();
        if (empty($errors)) {
            
           // echo get_permalink($pid);
            $url = 'https://somethingsomething.com/'. $_SESSION['pid'];
            wp_redirect($url);
            

          
        }
        //Set the errors here
    }
}

如何让 $_SESSION['pid'] 发送当前帖子的永久链接而不是上一篇？

Answer 1

重定向可能会到达错误的位置，因为

myInit()

函数在

create_post()

函数之前运行。

wp_重定向

您需要在调用

exit()

后立即添加

wp_redirect();

，否则您会得到意想不到的结果。

重定向用户

您可以执行以下操作。

1. 尝试在发送标头之前处理表单并使用 wp_redirect() 重定向用户。

我想这在理论上是可行的，但可能并不理想，因为我假设

create_post()

函数是用

admin_post_(action)

钩子处理的，该钩子在发送标头之后运行。

或

2. 发送标头后使用 JavaScript 重定向用户。

您可以使用 JavaScript 处理表单后重定向用户。

echo '<script type="text/javascript">';
echo 'window.location = "' . $url . '"';
echo '</script>';

Answer 2

我最终为所有输入创建了会话变量，然后在链接页面加载并工作后创建了帖子。然后我使用 JavaScript 重定向到新创建的帖子。

if(is_user_logged_in())
{
    if(isset($_POST['ispost']))
    {
        global $current_user;
        get_currentuserinfo();

        $user_login = $current_user->user_login;
        $user_email = $current_user->user_email;
        $user_firstname = $current_user->user_firstname;
        $user_lastname = $current_user->user_lastname;
        $user_id = $current_user->ID;


        $_SESSION['post_title']=$_POST['title'];
        $_SESSION['sample_image']=$_FILES['sample_image']['name'];
        $_SESSION['post_content']=$_POST['sample_content'] . do_shortcode('[wpstream_go_live]'); 
        // do_shortcode('[wpstream_go_live id="12"]'); 
        $_SESSION['post_category']=$_POST['category'];

        //$post_title = $_POST['title'];
        //$sample_image = $_FILES['sample_image']['name'];
        //$post_content = $_POST['sample_content'];
        //$category = $_POST['category'];
    }
}


add_action('loop_end', 'myInit');
function myInit() {
    if (isset($_POST['ispost'])) {
        $errors = myFormValidation();
        if (empty($errors)) {
            echo $_SESSION['post_title'];
                $new_post = array(
                'post_title' => $_SESSION['post_title'],
                'post_content' => $_SESSION['post_content'] . $_SESSION['post_category'],
                'post_status' => 'publish',
                'post_type' => $post_type,
                'post_category' =>array($_SESSION['post_category']) 
            );

            $pid = wp_insert_post($new_post);
            add_post_meta($pid, 'meta_key', true);
            
            $url= get_permalink($pid);
            echo '<script type="text/javascript">';
            //echo 'alert("' . $pid . '")';
            echo 'window.location = "' . $url . '"';
            echo '</script>';    
            
            //echo do_shortcode('[wpstream_go_live id="12"]');
            
            $_SESSION['pid'] = $pid;
            $url= "www.google.com";
        
            if (!function_exists('wp_generate_attachment_metadata'))
            {
                require_once(ABSPATH . "wp-admin" . '/includes/image.php');
                require_once(ABSPATH . "wp-admin" . '/includes/file.php');
                require_once(ABSPATH . "wp-admin" . '/includes/media.php');
            }

            if ($_FILES)
            {
                foreach ($_FILES as $file => $array)
                {
                    if ($_FILES[$file]['error'] !== UPLOAD_ERR_OK)
                    {
                        return "upload error : " . $_FILES[$file]['error'];
                    }
                    $attach_id = media_handle_upload( $file, $pid );
                }
            }
            
            if ($attach_id > 0)
            {
                //and if you want to set that image as Post then use:
                update_post_meta($pid, '_thumbnail_id', $attach_id);
                $_SESSION['pid'] = $pid;
                
            }
    
            $my_post1 = get_post($attach_id);
            $my_post2 = get_post($pid);
            $my_post = array_merge($my_post1, $my_post2);
        }
    } else {
        echo "<h2 style='text-align:center;'>User must be login for add post!</h2>";
        //echo do_shortcode('[wpstream_go_live id="12"]');
        echo PLUGIN_DIR;
    }
}