我在wp-admin中编辑自定义页面。目前在编辑器中我看到了
[vc_column_text]Titile1[/vc_column_text]
每个[/vc_column_text]
后我需要显示数据库中的一些信息。我怎么能用wp-admin编辑器中的一些参数调用php函数?
像这样左右:
[vc_column_text]Titile[/vc_column_text]
[getInforFromDatabase('Titile1')]
答案 0 :(得分:2)
这需要做一些事情。你可能不会直接从WP-Admin编辑器中调用PHP函数,但你可以创建一个简单的基本插件来为你做繁重的工作。然后公开一个可以在WP Admin Editor中使用的短代码。
为此,首先在wp-content / plugins 目录中创建一个目录。出于演示的目的,我们将调用此目录: dbInfoSifter ,但名称完全取决于您。最后,此目录的路径为: wp-content / plugins / dbInfoSifter
现在在此文件夹( dbInfoSifter )内,再次创建一个具有相同名称的PHP文件,以便您拥有: wp-content / plugins / dbInfoSifter / dbInfoSifter.php 。现在在dbInfoSifter.php文件中添加以下代码:
<?php
/*
Plugin Name: DB Info Sifter
Plugin URI: your-domain.tld
Description: Simple Plugin to sift data From Database.
Author: Your Name
Author URI: http://your-domain.tld
Version: 1.0.0
*/
// THE COMMENTED LINES ABOVE INFORMS WORDPRESS THAT THIS IS A PLUGIN.
// SO IT KNOWS TO ADD IT TO THE PLUGINS LIST...
// WE SHALL REVISIT THIS SOONER THAN LATER...
// IN THIS FILE YOU SHOULD PUT ALL THE LOGIC
// FOR GETTING DATA FROM THE DATABASE OR DOING ANYTHING AT ALL
// HOWEVER, THE MOST IMPORTANT THING IS TO EXPOSE THE SHORT-CODE
// SO THAT WE CAN USE IT INSIDE THE WP-ADMIN EDITOR.
// WE CAN DO THAT WITH THE FOLLOWING LINES OF CODE...
add_shortcode('getInfoFromDatabase', 'dbsGetInfoFromDatabase');
// THE LINE ABOVE EXPOSES THE SHORT-CODE SO THAT YOU CAN CALL IT
// FROM YOUR WP-ADMIN EDITOR... THE ARGUMENTS ARE SPECIFIC:
// THE 1ST ARGUMENT IS THE NAME OF THE SHORT-CODE
// THE 2ND IS THE NAME OF THE FUNCTION TO RUN WHEN THIS SHORT-CODE IS CALLED.
// SO NOW, WE WRITE OUT THE FUNCTION ITSELF:
//THE $atts PARAM IS AN ARRAY OF PARAMETERS PASSED TO THE SHORT-CODE.
function dbsGetInfoFromDatabase($atts){
extract( shortcode_atts( array(
'title1' => "default_value", /*<= SET DEFAULT VALUE*/
'param2' => "default_value", /*<= SET DEFAULT VALUE*/
), $atts ));
// WITH THE extract FUNCTION YOU CAN NOW USE title1 AND param2
// AS NORMAL VARIABLES IN YOUR PROGRAMS LIKE $title1, $param2.
// SO THIS IS WHERE YOU BUILD YOUR LOGIC TO GET DATA FROM THE
// DATABASE & YOU CAN USE THE PARAMETERS TOO...
// YOU ARE NOT LIMITED TO THE NUMBER OF PARAMETERS TO USE
// AS WELL AS THE NAME OF THE PARAMETERS...
// THOSE ARE COMPLETELY UP TO YOU...
/* AND SO; YOUR LOGIC CONTINUES...*/
// IT IS HIGHLY IMPORTANT THAT THIS FUNCTION RETURNS A VALUE.
// MOSTLY LIKELY, THE TYPE WOULD BE A STRING
// (ESPECIALLY IF YOU WANT TO DISPLAY IT AUTOMATICALLY)
return $stringValueResultingFromDBTransactions;
}
这就是......没有什么特别的东西......但是你也可以在这个文件中有其他功能,无论如何。但是,此文件的最重要部分(在您的情况下)是:1。)函数:dbsGetInfoFromDatabase($ args)和2.)文件顶部的注释。
现在,在WP-Admin编辑器中;你可以使用我们创建的短代码来简单地引用这个函数:
// WP-ADMIN EDITION (BACKEND)
[vc_column_text]Titile[/vc_column_text]
[getInfoFromDatabase title1='Titile1'] //<== CALL YOUR SHORT-CODE
或者,你可以这样做:
//WP-ADMIN EDITION (BACKEND)
[vc_column_text]Titile[/vc_column_text]
[getInfoFromDatabase title1='Titile1'][/getInfoFromDatabase]
两者都会达到相同的结果,但第一个看起来更简洁(对我来说)。随便挑选。
最后,您需要在后端激活插件才能使用。所以;导航到您的插件部分(在Wordpress的后端)。您会注意到一个名为 DB Info Sifter的新插件。只需激活它,您终于完成了所有操作。你的短代码现在就像你实际调用一个函数并传递$ title1参数一样。
我希望这会对你有所帮助,让你先行一步...... 祝你好运,我的朋友......