php - 使用 Dreamweaver 将多个检查值插入到一个数据库字段中

Question

我目前正在开发一个项目，该项目需要用户勾选两个或多个主题复选框，然后提交到数据库，但使用我当前的脚本，我发现困难，它只插入第一个带有 Y 的复选框，但是什么我想要实现的是当用户勾选时，例如。科学和数学，应在数据库字段中插入为 Science,Mathematics。

if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") 
{
  if (PHP_VERSION < 6) {
    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
  }

  $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($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;
}
}

if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") 
{
  if (PHP_VERSION < 6) {
    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
  }

  $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($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"] == "main_form")) {
  $insertSQL = sprintf("INSERT INTO regis (email, write_exam) VALUES (%s, %s)",
                       GetSQLValueString($_POST['email'], "text"),
                       GetSQLValueString(isset($_POST['written_tests']) ? "true" : "", "defined","'Y'","'N'"));

  mysql_select_db($database_sample, $sample);
  $Result1 = mysql_query($insertSQL, $sample) or die(mysql_error());
}

HTML

<form id="subject_form" action="user.php">
<input name="subject" type="checkbox" id="subject" value="Science" />
        Science &nbsp;
        <input name="subject" type="checkbox" id="subject" value="Mathematics" />
        Mathematics&nbsp;
</form>

Answer 1

编辑:

• 您应该更改名称受包含“科学”和“数学”值的数组 subject[] 约束的表单复选框。然后更改SQL inserg代码以存储检查到的subject[]数组元素，并make

  $selectedSubjects = implode(',', $_POST['subject']);

并将 $selectedSubjects 值插入数据库。

• 考虑将 HTML 更改为:

<form id="subject_form" action="user.php">
<input name="subject[]" type="checkbox" id="subject" value="Science" />
Science &nbsp;
<input name="subject[]" type="checkbox" id="subject" value="Mathematics" />
Mathematics&nbsp;
</form>