我正在使用ajax开发预订表单。我面临两个问题。一种是当我在页面或帖子中使用表单的短代码时，在WP后端5.2.3版本中显示表单。另一个是当我使用这个函数check\\u ajax\\u referer（）检查nonce字段时。表单不显示在“查看”页面中。仅在视图页面中显示-1。
/*
Plugin Name: Ajax Reservation Form
Plugin URI: http://example.com
Description: Reservation Form
Version: 1.0
Author: Ataur Rahman
Author URI: md-ataur.github.io
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ajax-reservation-form
*/
defined( \'ABSPATH\' ) or die( \'No script kiddies please!\' );
if(!class_exists(\'AjaxReservationForm\')){
class AjaxReservationForm{
public function __construct(){
add_action(\'plugins_loaded\', array($this, \'ajaxrf_load_textdomain\' ));
add_action(\'wp_enqueue_scripts\', array($this, \'ajaxrf_enqueue_scripts\'));
add_shortcode( \'ajax_reservation_form\', array($this,\'ajaxrf_shortcode\' ));
add_action( \'wp_ajax_ajaxRSF\', array($this, \'AjaxdataProcess\') );
add_action( \'wp_ajax_nopriv_ajaxRSF\', array($this, \'AjaxdataProcess\') );
}
public function ajaxrf_load_textdomain(){
load_plugin_textdomain( \'ajax-reservation-form\', false, dirname( plugin_basename( __FILE__ ) ) . \'/languages\' );
}
public function ajaxrf_enqueue_scripts(){
wp_enqueue_style( \'bootstrap\', plugin_dir_url( __FILE__ ).\'assets/public/css/bootstrap.min.css\');
wp_enqueue_script( \'ajax-reservation-js\', plugin_dir_url( __FILE__ ).\'assets/public/js/ajax-reservation.js\', array( \'jquery\' ), time(), true );
$ajaxUrl = admin_url( \'admin-ajax.php\');
wp_localize_script( \'ajax-reservation-js\', \'url\', array(\'ajaxUrl\' => $ajaxUrl) );
}
public static function AjaxdataProcess(){
if (check_ajax_referer( \'rsf_nonce_action\', \'snonce\' )) {
$RFname = sanitize_text_field( isset($_POST[\'RFname\'])?$_POST[\'RFname\']:\'\' );
$RFemail = sanitize_text_field( isset($_POST[\'RFemail\'])?$_POST[\'RFemail\']:\'\' );
$RFphone = sanitize_text_field( isset($_POST[\'RFphone\'])?$_POST[\'RFphone\']:\'\' );
$RFperson = sanitize_text_field( isset($_POST[\'RFperson\'])?$_POST[\'RFperson\']:\'\' );
$RFdate = sanitize_text_field( isset($_POST[\'RFdate\'])?$_POST[\'RFdate\']:\'\' );
$RFtime = sanitize_text_field( isset($_POST[\'RFtime\'])?$_POST[\'RFtime\']:\'\' );
$RFMessage = sanitize_text_field( isset($_POST[\'RFMessage\'])?$_POST[\'RFMessage\']:\'\' );
$data = array(
\'RFname\' => $RFname,
\'RFemail\' => $RFemail,
\'RFphone\' => $RFphone,
\'RFperson\' => $RFperson,
\'RFdate\' => $RFdate,
\'RFtime\' => $RFtime,
\'RFMessage\' => $RFMessage,
);
echo "<pre>";
print_r($data);
echo "</pre>";
}
}
public static function ajax_reservation_form(){
?>
<div class="container">
<div class="col-md-6 offset-md-3">
<form action="<?php the_permalink(); ?>" id="arform">
<?php wp_nonce_field( \'rsf_nonce_action\', \'rsf_nonce_field\');?>
<div class="form-group">
<label for="name" class="label">Name</label>
<input type="text" class="form-control" id="RFname">
</div>
<div class="form-group">
<label for="email" class="label">Email</label>
<input type="email" class="form-control" id="RFemail">
</div>
<div class="form-group">
<label for="phone" class="label">Phone</label>
<input type="text" class="form-control" id="RFphone">
</div>
<div class="form-group">
<label for="persons" class="label">Number of Persons</label>
<select name="persons" id="RFperson" class="form-control">
<option value="1">1 person</option>
<option value="2">2 person</option>
<option value="3">3 person</option>
<option value="4">4 person</option>
<option value="5">5 person</option>
</select>
</div>
<div class="row">
<div class="form-group col-md-6">
<label for="date" class="label">Date</label>
<input type="date" class="form-control" id="RFdate">
</div>
<div class="form-group col-md-6">
<label for="time" class="label">Time</label>
<input type="time" class="form-control" id="RFtime" autocomplete="off">
</div>
</div>
<div class="form-group">
<textarea class="form-control" id="RFMessage" rows="5"></textarea>
</div>
<div class="row justify-content-center">
<button id="reserveForm" class="btn btn-primary">Reserve Now</button>
</div>
</form>
</div>
</div>
<?php
}
public function ajaxrf_shortcode(){
self::AjaxdataProcess();
self::ajax_reservation_form();
}
}
new AjaxReservationForm;
}
Javascript
;(function($){
$(document).ready(function(){
$(\'#reserveForm\').on(\'click\', function(){
$.post(url.ajaxUrl, {
action: \'ajaxRSF\',
snonce: $(\'#rsf_nonce_field\').val(),
RFname: $(\'#RFname\').val(),
RFemail: $(\'#RFemail\').val(),
RFphone: $(\'#RFphone\').val(),
RFperson: $(\'#RFperson\').val(),
RFdate: $(\'#RFdate\').val(),
RFtime: $(\'#RFtime\').val(),
RFMessage: $(\'#RFMessage\').val()
}, function(data) {
console.log(data);
});
return false;
});
});
})(jQuery);
最合适的回答,由SO网友:Sally CJ 整理而成
一种是当我在页面或帖子中使用表单的短代码时，在WP后端5.2.3版本中显示表单。
发生这种情况是因为您的短代码正在响应输出。短代码应始终返回输出，但如果需要回显输出，则应使用输出缓冲：
public function ajaxrf_shortcode(){
// Turn on output buffering.
ob_start();
self::AjaxdataProcess();
self::ajax_reservation_form(); // echo the form
// Turn off output buffering and then return the output echoed via the above functions.
return ob_get_clean();
}
另一个是使用此函数检查nonce字段时
check_ajax_referer(). 表单不显示在“查看”页面中。仅在视图页面中显示-1。
首先，你为什么打电话来AjaxdataProcess() 在shortcode函数中(ajaxrf_shortcode())? 是因为您允许非AJAX表单提交吗？
但是，如果（AJAX）请求验证失败（例如，由于缺少或过期的nonce），并且默认情况下，“-1”可能会发生，check_ajax_referer() 将调用wp_die() 如果执行AJAX请求或die() 否则
为了防止WordPress/PHP在请求验证失败时停止执行，请将第三个参数设置为false 当你打电话的时候check_ajax_referer():
check_ajax_referer( \'rsf_nonce_action\', \'snonce\', false )
如果要允许非AJAX表单提交name; e、 g.：
<input type="text" class="form-control" id="RFname" name="RFname">
<input type="email" class="form-control" id="RFemail" name="RFemail">
method 到
post （因为
AjaxdataProcess() 正在使用
$_POST):
<form action="<?php the_permalink(); ?>" id="arform" method="post">
snonce 具有
check_ajax_referer() （在JS脚本中），但在表单中，名称是
rsf_nonce_field:
英寸ajax_reservation_form() &mdash；the value of the second parameter for wp_nonce_field() should match the value of the second parameter for check_ajax_referer() （事实上，第一个参数也是如此……）：
<?php wp_nonce_field( \'rsf_nonce_action\', \'rsf_nonce_field\');?>
rsf_nonce_field 应更改为
snonce.
