Question

我有一个简单的代码来上传多个图像，将图像上传到文件夹并保存数据库的路径。问题是我有3个浏览按钮。当使用图像选择所有三个浏览按钮时，脚本仅上载文件并将路径保存到数据库。但是，当我只选择1个图像上传脚本时不起作用。怎么了？

这是我目前的剧本。

<?php
include'includes/db.php';
  if(isset($_POST['submit'])){

    $extension = substr($_FILES['photo1']['name'],
    strrpos($_FILES['photo1']['name'], '.'));

    $extension = substr($_FILES['photo2']['name'],
    strrpos($_FILES['photo2']['name'], '.'));

    $extension = substr($_FILES['photo3']['name'],
    strrpos($_FILES['photo3']['name'], '.'));


     $extension = strtolower($extension);
     echo $extension;

    if( $extension == ".jpg" || $extension == ".jpeg" || $extension ==  ".gif" || $extension == ".png" )
    {
        $img1=$_FILES['photo1']['name'];
        $img2=$_FILES['photo2']['name'];
        $img3=$_FILES['photo3']['name'];

        $size=$_FILES['photo']['size'];
        $type=$_FILES['photo']['type'];

        $temp1=$_FILES['photo1']['tmp_name'];
        $temp2=$_FILES['photo2']['tmp_name'];
        $temp3=$_FILES['photo3']['tmp_name'];

        $limit_size = 1024000; 
        $size_in_kb = 1024; 
        $max_size = $limit_size/$size_in_kb; 


        if($size > $limit_size)
        {
            echo "<script>location.replace('test.php?err=File size exceeds $max_size KB')</script>";    

        }
        else 
        {
            move_uploaded_file($temp1,"images/".$img1);
            move_uploaded_file($temp2,"images/".$img2);
            move_uploaded_file($temp3,"images/".$img3);

            $sql2="INSERT INTO ad_images(image1, image2, image3)VALUES('$img1', '$img2', '$img3')";
            $res2=mysql_query($sql2);

            if($res2){
            echo "<script>location.replace('test.php?success=Product added successfuly')</script>";
            }else{
            echo "<script>location.replace('test.php?vlx=Error. Try Again...')</script>";
        }
     }
   }
 }
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Script Testing</title>
</head>

<body>
  <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" enctype="multipart/form-data">
  <p> Upload Image<br />
        <input type="file" name="photo1" id="photo"><br />
        <input type="file" name="photo2" id="photo"><br />
        <input type="file" name="photo3" id="photo"><br />

    <input type="submit" name="submit" id="submit" value="Add Product" style="margin-top: 25px; margin-left: 335px;"/>
  </p>

</body>
</html>

我的代码中没有出错，一切似乎都没问题。请帮忙。

************已解决***************

我使用相同的变量扩展名。现在解决了。

这是我的新代码。

<?php
include'includes/db.php';
  if(isset($_POST['submit'])){

    $extension1 = substr($_FILES['photo1']['name'],
    strrpos($_FILES['photo1']['name'], '.'));

    $extension2 = substr($_FILES['photo2']['name'],
    strrpos($_FILES['photo2']['name'], '.'));

    $extension3 = substr($_FILES['photo3']['name'],
    strrpos($_FILES['photo3']['name'], '.'));


     $extension1 = strtolower($extension1);
     echo $extension1;

     $extension2 = strtolower($extension2);
     echo $extension2;

     $extension3 = strtolower($extension3);
     echo $extension3;

    if( $extension1 == ".jpg" || $extension1 == ".jpeg" || $extension1 ==   ".gif" || $extension1 == ".png" ||
        $extension2 == ".jpg" || $extension2 == ".jpeg" || $extension2 ==   ".gif" || $extension2 == ".png" ||
        $extension3 == ".jpg" || $extension3 == ".jpeg" || $extension3 ==   ".gif" || $extension3 == ".png" )
    {
        $img1=$_FILES['photo1']['name'];
        $img2=$_FILES['photo2']['name'];
        $img3=$_FILES['photo3']['name'];

        $size=$_FILES['photo']['size'];
        $type=$_FILES['photo']['type'];

        $temp1=$_FILES['photo1']['tmp_name'];
        $temp2=$_FILES['photo2']['tmp_name'];
        $temp3=$_FILES['photo3']['tmp_name'];

        $limit_size = 1024000; 
        $size_in_kb = 1024; 
        $max_size = $limit_size/$size_in_kb; 


        if($size > $limit_size)
        {
            echo "<script>location.replace('test.php?err=File size exceeds $max_size KB')</script>";    

        }
        else 
        {
            move_uploaded_file($temp1,"images/".$img1);
            move_uploaded_file($temp2,"images/".$img2);
            move_uploaded_file($temp3,"images/".$img3);

            $sql2="INSERT INTO ad_images(image1, image2, image3)VALUES('$img1', '$img2', '$img3')";
            $res2=mysql_query($sql2);

            if($res2){
            echo "<script>location.replace('test.php?success=Product added successfuly')</script>";
            }else{
            echo "<script>location.replace('test.php?vlx=Error. Try Again...')</script>";
        }
     }
   }
 }
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Script Testing</title>
</head>

<body>
  <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" enctype="multipart/form-data">
  <p> Upload Image<br />
        <input type="file" name="photo1" id="photo"><br />
        <input type="file" name="photo2" id="photo"><br />
        <input type="file" name="photo3" id="photo"><br />

    <input type="submit" name="submit" id="submit" value="Add Product" style="margin-top: 25px; margin-left: 335px;"/>
  </p>

</body>
</html>

Answer 1

您可以使用多个属性上传多个文件，抛出一个浏览按钮，例如

<input type="file" name="img" multiple>

您可以使用ctrl选择多个图像

Answer 2

因为你使用相同的变量$ extension，如果不选择第三个浏览字段，提交后它将为空白，如果条件不会进入上传。如果您只从第三个浏览按钮浏览，那么将上传该单个文件。

多个文件上传问题

2 个答案: