我正在写一个插件。有一个按钮可以触发ajax请求，以执行我在插件页面中添加的操作：

我的插件PHP文件的标题：

add_action(\'wp_ajax_update_nav_items\', \'update_nav_items\' );
add_action(\'wp_ajax_nopriv_update_nav_items\', \'update_nav_items\' );

wp_enqueue_script( \'addItemToNav\', plugin_dir_url( __FILE__ ) . \'js/navFunctions.js\', array( \'jquery\', \'json2\' ) );
wp_localize_script( \'addItemToNav\', \'menuItems\', array(
    // URL to wp-admin/admin-ajax.php to process the request
    \'ajaxurl\'          => admin_url( \'admin-ajax.php\' ),
    // generate a nonce with a unique ID "myajax-post-comment-nonce"
    \'postCommentNonce\' => wp_create_nonce( \'update_nav_items-nonce\' ),
    \'action\' => \'update_nav_items\'
    )
);
function update_nav_items() { 
    // Testing stuff 
    $response = json_encode( array( \'response\' => \'success\', \'html\' => \'some value\' ) );
    ob_clean();
    print_r( $response );
    echo json_encode( $response );

    die();
}

我的JavaScript触发：

var data = {
    action: \'update_nav_items\',
    postCommentNonce : menuItems.postCommentNonce,
    menuitems: JSON.stringify(itemtest)
};

jQuery.ajax({ 
    url: menuItems.ajaxurl, 
    data: data,  
    type: \'post\',
    dataType: \'json\',
    success: function( response ) {
        console.log(response);
    }
}); 

在浏览器控制台中，将请求发送到正确的url，包括以下参数：

action  update_nav_items
menuitems   {"glossary":{"title":"example glossary","GlossDiv":{"title":"S","GlossList":{"GlossEntry":{"ID":"SGML","SortAs":"SGML","GlossTerm":"Standard Generalized Markup Language","Acronym":"SGML","Abbrev":"ISO 8879:1986","GlossDef":{"para":"A meta-markup language, used to create markup languages such as DocBook.","GlossSeeAlso":["GML","XML"]},"GlossSee":"markup"}}}}}
postCommentNonce    0cee7325b3

（menuitems仅用于使用正确的JSON进行测试）

我得到的是response is 0, 因此，行动似乎存在问题。我就是找不到。我已经尝试在我的函数中添加操作。php，它仍然不起作用。

有人有线索吗？

wp_localize_script( \'addItemToNav\', \'menuItems\', array(
    // URL to wp-admin/admin-ajax.php to process the request
    \'ajaxurl\'          => admin_url( \'admin-ajax.php\' ),
    // generate a nonce with a unique ID "myajax-post-comment-nonce"
    \'postCommentNonce\' => wp_create_nonce( \'update_nav_items-nonce\' ),
    \'action\' => \'wp_ajax_update_nav_items\'
    )
);

function update_nav_items() { 
    // Testing stuff 
    $response = json_encode( array( \'response\' => \'success\', \'html\' => \'some value\' ) ); // first JSON encode
    ob_clean();

    die(json_encode( $response )); // second JSON encode
}

add_action( \'wp_ajax_add_myfunc\', \'prefix_ajax_add_myfunc\' );
add_action( \'wp_ajax_nopriv_add_myfunc\', \'prefix_ajax_add_myfunc\' );

function prefix_ajax_add_myfunc() {
    // Handle request then generate response using WP_Ajax_Response
}

jQuery.post(
    ajaxurl, 
    {
        \'action\': \'add_myfunc\',
        \'data\':   \'foobarid\'
    }, 
    function(response){
        alert(\'The server responded: \' + response);
    }
);