php多个提交按钮不起作用

Question

    <form action="add_post.php" method="POST"> 
       <input type="text".... bla
        bla... 
      <input type= bla bla 
       <input type="reset" name="reset"    value="Reset" />
<input type="hidden" name="MAX_FILE_SIZE" value="2000000">
    <input name="userfile" type="file" id="userfile">
        <input type="submit" name="submit1" value="file upload"> 
    <input type="submit" name="submit2" value="post form"> 
    </form>

add_post.php中的

if(isset($_POST['submit1']))
{
    echo $fileName = $_FILES['userfile']['name'];
echo    $tmpName  = $_FILES['userfile']['tmp_name'];
    $fileSize = $_FILES['userfile']['size'];
    $fileType = $_FILES['userfile']['type'];

    $fp      = fopen($tmpName, 'r');
    $content = fread($fp, filesize($tmpName));
    $content = addslashes($content);
    fclose($fp);

    if(!get_magic_quotes_gpc())
    {
        $fileName = addslashes($fileName);
    }

    $query = "INSERT INTO upload set name='".$fileName."', size='".$fileSize."', type='".$fileType."', content='".$content."'";
    mysql_query($query) or die('Error, query failed');
    echo "<br>File $fileName uploaded<br>";
     echo "Button1 Is Set <br>";
}

if (isset($_POST['submit2']))
{
 echo "Button2 Is Set <br>";

}

但是，它给了我这个输出......

Answer 1

<form action="add_post.php" method="POST" enctype="multipart/form-data">

您还需要添加一些检查，以确保实际设置$_FILES，因为如果不是，那么您将向变量添加未定义的索引。

另请查看：Two submit buttons in one form