Home > Backend Development > PHP Tutorial > PHP javascript表单证验未通过而表单依然提交

PHP javascript表单证验未通过而表单依然提交

WBOY
Release: 2016-06-13 13:06:06
Original
1560 people have browsed it

PHP javascript表单验证未通过而表单依然提交
如题,我的情况是不输入任何数据,点击提交注册,会弹出“请输入用户名”这样的提示,点击确定后 就转到另一个页面,并只显示一句话:Column 'UserName' cannot be null。
下面是代码:

HTML code
<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

--><?php require_once('Connections/conetion.php'); ?>
<?php function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") 
{
  $theValue = (!get_magic_quotes_gpc()) ? addslashes($theValue) : $theValue;

  switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;    
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? "'" . doubleval($theValue) . "'" : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
  }
  return $theValue;
}

$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
  $editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}

if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form1")) {
  $insertSQL = sprintf("INSERT INTO member (UserName, Password, Email) VALUES (%s, %s, %s)",
                       GetSQLValueString($_POST['UserName'], "text"),
                       GetSQLValueString($_POST['Password'], "text"),
                       GetSQLValueString($_POST['Email'], "text"));

  mysql_select_db($database_conetion, $conetion);
  $Result1 = mysql_query($insertSQL, $conetion) or die(mysql_error());

  $insertGoTo = "index.php";
  if (isset($_SERVER['QUERY_STRING'])) {
    $insertGoTo .= (strpos($insertGoTo, '?')) ? "&" : "?";
    $insertGoTo .= $_SERVER['QUERY_STRING'];
  }
  header(sprintf("Location: %s", $insertGoTo));
}
?>


<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title></title>
Copy after login
Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template