Question

I am following a step by step guide on W3schools website on how to upload a file. The only thing I don’t understand is where does the php code go because if I try to put them below the html then I get notices stating “file” is undefined.

Does anyone know where the php code goes? If somebody could provide a sample of the layout of the code from W3schools then it would be very helpful. I want to see what it all is supposed to look like but I keep getting notices.

Click here to view the file upload steps on the W3schools website.

Thank you

Answer 1

// checking if the user has sent the data to the form
if (isset($_POST['upload_file']))
{
  // checking if the file size doesn't exceed the maximum size
  if ($_FILES['upload_file']['size'] < 10485760)
  {
    // checking if the user selected a file or thera are errors
    if ($_FILES['upload_file']['error'] == UPLOAD_ERR_OK)
    {
      // checking if the file type is allowed or not
      if ($_FILES['upload_file']['type'] == 'image/jpeg' || $_FILES['upload_file']['type'] == 'image/gif' || $_FILES['upload_file']['type'] == 'image/png')
      {
        $file_name = date("Hisu");

        if ($_FILES['upload_file']['type']=='image/jpeg')
          $file_name    = $file_name.".jpg";
        if ($_FILES['new_picture']['type']=='image/gif')
          $file_name    = $file_name.".gif";
        if ($_FILES['new_picture']['type']=='image/png')
          $file_name    = $file_name.".png";

        move_uploaded_file($_FILES['upload_file']['tmp_name'], 'objects/upload/files/'.$file_name);

        $URL_file   = 'objects/upload/files/'.$file_name;

        mysql_query("INSERT INTO uploads (URL) VALUES (".$URL_file.")"); 
      }
    }
  }
}