Question

我只是想创建一个简单的图片上传脚本。

这是我使用的，但似乎有一些问题并显示错误

<?php
    define("FILEREPOSITORY", "./");
    if(isset($_POST['submit'])){
        $user =$_POST['user'];
        $ext_boo = FALSE;
        $size_boo = FALSE;
        $user_boo = FALSE;
        if(strlen($user)<=0){
            echo "No Username";
            $user_boo = FALSE;
        }
        if($_FILES['picture']['size'] <=1024000){
            $size_boo = TRUE;
        }
        else{
            echo "Too large";
            $size_boo = FALSE;
        }
        if(is_uploaded_file($_FILES['picture']['tmp_name'])){
            //mime type
            switch($_FILES['picture']['type']){
                case "image/jpeg":
                    $extension = ".jpeg";
                    $ext_boo = TRUE;
                    break;
                case "image/gif":
                    $extension = ".gif";
                    $ext_boo = TRUE;
                    break;
                case "image/png":
                    $extension = ".png";
                    $ext_boo = TRUE;
                    break;
            }
            if($ext_boo && $size_boo && $user_boo){
                $result = move_uploaded_file($_FILES['picture']['tmp_name'], FILEREPOSITORY."/images/".$user."".$extension."");
                if($result)
                    echo "Uploaded";
                else
                    echo "Some problems";
            }
        echo "Wrong file type";
        }
    }
    else{
        echo "<table>
        <form enctype=\"multipart/form-data\" action=\"\" method=\"post\">
        <tr>
        <td>User:</td>
        <td><input type=\"test\" name=\"user\" /></td>
        </tr>
        <tr>
        <td>File:</td>
        <td><input type=\"file\" name=\"picture\" /></td>
        </tr>
        <input type=\"submit\" name=\"submit\" value=\"upload\" />
        </form>
        </table>";
    }
?>

有人可以帮我找出问题吗？

尝试var_dump($_FILES);时

错误：

array (size=1)
  'picture' => 
    array (size=5)
      'name' => string 'sample.png' (length=10)
      'type' => string 'image/png' (length=9)
      'tmp_name' => string 'C:\wamp\tmp\php74BB.tmp' (length=23)
      'error' => int 0
      'size' => int 7575
Wrong file type

Answer 1

您永远不会将$user_boo设置为TRUE。我把它改为TRUE开始（假设它是真的，直到你后来检查它是否在第10行是假的。）

同样在第37行，我更改了文件路径。您的上传位置额外增加了/。以下代码适用于我的机器。确保将www用户设置为您尝试上传到的任何位置的所有者，并且它具有写入权限。

<?php
    define("FILEREPOSITORY", "./");
    if(isset($_POST['submit'])){
        $user =$_POST['user'];
        $ext_boo = FALSE;
        $size_boo = FALSE;
        $user_boo = TRUE;
        if(strlen($user)<=0){
            echo "No Username";
            $user_boo = FALSE;
        }
        if($_FILES['picture']['size'] <=1024000){
            $size_boo = TRUE;
        }
        else{
            echo "Too large";
            $size_boo = FALSE;
        }
        if(is_uploaded_file($_FILES['picture']['tmp_name'])){
            //mime type
            switch($_FILES['picture']['type']){
                case "image/jpeg":
                    $extension = ".jpeg";
                    $ext_boo = TRUE;
                    break;
                case "image/gif":
                    $extension = ".gif";
                    $ext_boo = TRUE;
                    break;
                case "image/png":
                    $extension = ".png";
                    $ext_boo = TRUE;
                    break;
            }
            var_dump($ext_boo,$size_boo,$user_boo);
            if($ext_boo && $size_boo && $user_boo){
                $result = move_uploaded_file($_FILES['picture']['tmp_name'], FILEREPOSITORY."images/".$user."".$extension."");
                if($result)
                    echo "Uploaded";
                else
                    echo "Some problems";
            }
        echo "Wrong file type";
        }
    }
    else{
        echo "<table>
        <form enctype=\"multipart/form-data\" action=\"\" method=\"post\">
        <tr>
        <td>User:</td>
        <td><input type=\"test\" name=\"user\" /></td>
        </tr>
        <tr>
        <td>File:</td>
        <td><input type=\"file\" name=\"picture\" /></td>
        </tr>
        <input type=\"submit\" name=\"submit\" value=\"upload\" />
        </form>
        </table>";
    }
?>

使用php无法正常上传图片

1 个答案: