Ändern des Bildnamens beim Hochladen

Question

Ich möchte den Namen eines Bildes ändern, während ich es hochlade.

Hier ist mein Code:

if(isset($_POST['submit'])) 
{ 
    $target_dir = "pictures/"; 
    $target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]); 
    $uploadOk = 1; 
    $imageFileType = pathinfo($target_file,PATHINFO_EXTENSION); 

    // Allow certain file formats 
    if($imageFileType != "gif") { 
     echo "Sorry only GIF files are allowed."; 
     $uploadOk = 0; 
    } 
    // Check if $uploadOk is set to 0 by an error 
    if ($uploadOk == 0) { 
     echo "Sorry, your file was not uploaded."; 
    // if everything is ok, try to upload file 
    } else { 
     if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) { 
      echo "The file ". basename($_FILES["fileToUpload"]["name"]). " has been uploaded."; 
      header('Location:field_medal_winner.php'); 
     } else { 
      echo "Sorry, there was an error uploading your file."; 
     } 
    } 
} 

Zuerst habe ich versucht, es whith Änderung der move_uploaded_file Funktion zu tun. Aber ich habe gerade die sonst Nachricht:

if (move_uploaded_file("text.gif", $target_file)) { 
    echo "The file ". basename($_FILES["fileToUpload"]["name"]). " has been uploaded."; 
} else { 
    echo "Sorry, there was an error uploading your file."; 
} 

Hat jemand eine Idee, was ich falsch mache?

Answer 1

Ersetzen Sie diese 2 Zeilen

$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]); 
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION); 

Mit

$target_file = $target_dir . "text.gif"; 
$imageFileType = pathinfo($_FILES["fileToUpload"]["name"],PATHINFO_EXTENSION); 

Es als text.gif in Ihrem gewünschten Ordner speichern wird. Aber bedenken Sie, egal welche Datei Sie hochladen, wird es alte Text.gif Datei zu Text.gif überschreiben, da Datei mit demselben Namen hochgeladen wird.

Aktualisiert-Code

if(isset($_POST['submit'])) 
{ 
    $target_dir = "pictures/"; 
    $target_file = $target_dir . "text.gif"; 
    $uploadOk = 1; 
    $imageFileType = pathinfo($_FILES["fileToUpload"]["name"],PATHINFO_EXTENSION); 

    // Allow certain file formats 
    if(($imageFileType != "gif") || ($imageFileType != "GIF")) { 
    echo "Sorry only GIF files are allowed."; 
    $uploadOk = 0; 
    } 
    // Check if $uploadOk is set to 0 by an error 
    if ($uploadOk == 0) { 
    echo "Sorry, your file was not uploaded."; 
    } else { 
    if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) { 
     echo "The file ". basename($_FILES["fileToUpload"]["name"]). " has been uploaded."; 
     header('Location:field_medal_winner.php'); 
    } else { 
     echo "Sorry, there was an error uploading your file."; 
    } 
    } 
}