Im正在创建具有以下结构的插件：

plugins (folder)
- myplugin (folder)
 - myplugin_index.php (adminpanel file)
 - myplugin_ajax.php (loading data when user enters a form on the "start page")

themes (folder)
 - mytheme (folder)
  - template_my_own.php (this file have the form which calls the myplugin_ajax.php)

从管理面板的角度来看，该插件工作正常。我已经通过管理面板的插件添加了数据。

但是当我试图通过文件中的表单访问数据时template_my_own.php 我得到以下错误：

PHP Fatal error:  Call to undefined function get_option() 
in /var/www/example.com/wwwroot/wp-content/plugins/myplugin/myplugin_ajax.php 
on line 14, referer: http://example.com/

我尝试了来自both 这site.

但它们都不起作用。我的代码如下所示：

<?php
/*
Plugin Name: Myplugin
Plugin URI: http://example.com
*/
?>
<?php
    $square = $_POST[\'square\'];

    //Get arrays and remove empty array values
    $arrayFrom =            array_filter(get_option(\'from\'), \'strlen\');
    $arrayTo =          array_filter(get_option(\'to\'), \'strlen\');
    $arrayPrice =   array_filter(get_option(\'price\'), \'strlen\');


    //Sort arrays
    asort($arrayFrom);
    asort($arrayTo);
    asort($arrayPrice);


    //Go through values until we find the one
    foreach($arrayFrom as $index => $from)
    {
        if($from < $square && $arrayto[$index] > $square)
        {
            echo $from;
            echo \'<br>TESTTESTTEST\';
            echo $to;
        }
    }   
?>

我应该如何解决这个问题？我做错了什么？

function your_ajax_function() {
    // your Script here
}

add_action( \'wp_ajax_your_ajax_function\', \'your_ajax_function\' );
add_action( \'wp_ajax_nopriv_your_ajax_function\', \'your_ajax_function\' ); // Skip this line if you want the AJAX just for logged in users

var data =  {
    action: \'your_ajax_function\',
    your_data: \'datatosubmit\'
};
$.post(ajaxurl, data, function(response) {
    // what to do with your response
});