Question

场合

我有一份提交表格。使用此表单，用户可以在餐厅预订餐桌。每次提交都会有一些数据通过wp_insert_post函数发送到数据库。例如user_ip和datum_nieuwe_reservering（稍后解释）。我想用它来检查是否允许用户提交新的预订（防止发送垃圾邮件）。我尝试过几件事，但它没有用。请参阅下面的代码。

问题

我怎样才能让它发挥作用？我做错了什么？

CODE
reserving.php

<!-- CODE WHEN POST = SUBMIT, MAKE A NEW RESERVATION.
=========================================== -->
<?php
global $wpdb;
$user_ip_db = getUserIP();
$date = date("d-m-Y H:i:s");

//echo $date;

$check_user_ip = $wpdb->get_results("SELECT meta_value FROM $wpdb->postmeta WHERE meta_key = 'user_ip_reservering' AND meta_value = '$user_ip_db'");
$check_time_new = $wpdb->get_results("SELECT meta_value FROM $wpdb->postmeta WHERE meta_key = 'datum_nieuwe_reservering'");

print_r($check_time_new);


if ( isset($_POST['submit_reservering']) ) {
  if ( (empty($check_user_ip)) && $date > $check_time_new ) {
      create_reservering();
      echo "Your reservation has been send";
    } else {
    echo 'You have already reserved';
  }
}

?><!-- end CODE FOR MAKING RESERVATION-->

插件文件

//Using this function to send the current day + 1 day to the database
//with a hidden text field named `datum_nieuwe_reservering`(show below)
//and in the end check if current date >= `datum_nieuwe_reservering`
<?php
 function getDateTime(){
 date_default_timezone_set('Europe/Amsterdam');
 $next_day = time() + (1 * 24 * 60 * 60);
 $date_now = date('d-m-Y H:i:s');
 $date_tomorrow = date('d-m-Y H:i:s', $next_day);

 echo $date_tomorrow;
}
?>

datum_nieuwe_reservering

的隐藏字段

 <input type='hidden' value='<?php echo getDateTime(); ?>' name='datum_nieuwe_reservering'>

注意：提交表单仅适用于if (empty($check_user_ip)) { };代码。所以我也很难在if语句中添加日期。

我希望有人能帮助我朝着正确的方向前进！提前谢谢。

Answer 1

您是否尝试过使用括号？

if ( isset($_POST['submit_reservering']) ) {
  if  ( (empty($check_user_ip)) && ($date > $check_time_new) ) {
      create_reservering();
      echo "Your reservation has been send";
    } else {
    echo 'You have already reserved';
  }
}

Answer 2

if (isset($_POST['submit_reservering']) === true) {
    $reserved = false;
    if (empty($check_user_ip) === true) {
        $test = end($check_time_new);
        if(date > $test->meta_value) {
            create_reservering();
            echo "Your reservation has been send";
        } else {
            echo 'You have already reserved';
        }
    }
}

提交多个条件不起作用的表单

2 个答案: