Question

我有这个HTML：

<?php if(!empty($_GET['pID'])) $the_pID = mysql_real_escape_string($_GET['pID']); 
  #echo $the_pID;
?>

<form action="inc/q/prof.php?pID=<?php echo $the_pID; ?>" method="post">            
  <select id="courseInfoDD" name="courseInfoDD" tabindex="1">
    <?php while($row3 = $sth3->fetch(PDO::FETCH_ASSOC)) {
      echo "<option>".$row3['prefix']." ".$row3['code']."</option>"; 
      } echo "</select>"; ?>
  <input type="text" id="addComment" name="addComment" tabindex="3" value="Enter comment" />
  <input type="hidden" name="pID" value="<?php echo $the_pID; ?>">
  <input type="submit" name="submit" id="submit" />
</form>

这个PHP：

<?php

$connect = mysql_connect("###", $username, $password) or die ("Error , check your server connection.");
mysql_select_db("###");

//Get data in local variable
if(!empty($_POST['addComment']))
    $INFOO = mysql_real_escape_string($_POST['addComment']);
if(!empty($_POST['pID']))
    $PIDD = mysql_real_escape_string($_POST['pID']);
if(!empty($_POST['courseInfoDD']))
    $COURSEE = mysql_real_escape_string($_POST['courseInfoDD']);

#print_r($_POST);
echo $the_pID;

// check for null values
if (isset($_POST['submit'])) {
  $query="INSERT INTO Comment 
             (info, pID, cID) 
          VALUES
             ('$INFOO','$PIDD','$COURSEE')";
  mysql_query($query)  or die(mysql_error());
  echo "Your message has been received";
}
#else if(!isset($_POST['submit'])){echo "No blank entries";}
#else{echo "Error!";}
?>

我正在尝试获取代码的值：

<select id="courseInfoDD" name="courseInfoDD" tabindex="1">
  <?php while($row3 = $sth3->fetch(PDO::FETCH_ASSOC)) {
  echo "<option>".$row3['prefix']." ".$row3['code']."</option>"; 
  } echo "</select>"; ?>

然后将其插入php variable $COURSEE，然后将其插入上方。

问题

为此值插入零值？这意味着它没有什么可插入的，正确的？任何人都看到了什么

Answer 1

您应该在使用PHP生成的value的HTML元素中添加<option>属性，以便在您编写$_POST['courseInfoDD']时将其返回给您

<select name="Mobile" size="3">
    <option value="Nokia">Nokia</option>
    <option value="iPhone">iPhone</option>
    <option value="Android">Android</option>
</select>

获取表单输入的价值Php

问题

1 个答案: