在php和mysql上传后找不到文件

Question

I would like to upload some files to my server. So far, they have been successfully stored in a MySQL database, but the problem is that the uploaded file is not found in a folder that is located on the server.

Here's my code:

$dir = $filename;
    $target_dir = "file/$dir/";
    if( is_dir($target_dir) === false )
    {
        mkdir($target_dir);
    }

if(isset($_POST["submit"])) {
    $formatfile = array('pdf');
    $filetest= $_FILES['filetest']['name'];
    $x = explode('.', $filetest);
    $existence= strtolower(end($x));
    $pdfsize = $_FILES['filetest']['size'];
    $file_tmp = $_FILES['filetest']['tmp_name'];    


    if(in_array($existence, $formatfile) === true){

            if($pdfsize < 1044070){         
                move_uploaded_file($file_tmp, "$target_dir.$filetest");
            }
        }
    }
 $sql = "INSERT INTO test (filename) VALUES ('$filetest')";

Is there anything I missed?

Answer 1

Please change $formatfile = array('pdf') to $formatfile = array('.pdf'=>'application/pdf');