This SHD work ... no idea why. When user submits form, uploads the file to ../images/ and writes that file name to a text file. It does not upload the file and it blanks out the txt file which I assume means the upload fails.
$img_name = $_FILES['avatar']['name'];
$upload_file = move_uploaded_file($_FILES['avatar']['tmp_name'], "../images/" . $img_name);
$log_avatar = fopen('../archive/avatar.txt', 'w+');
fwrite($log_avatar, $img_name);
fclose($log_avatar);
header("location:user.php");
分享 to write the name of the uploaded file to text file use "a+" instead of "w+" the difference between them is
"w+" opens the file for reading and writing and place the file pointer at the beginning of the file
"a+" opens the file for reading and writing and place the file pointer at the end of the file
$log_avatar = fopen('../archive/avatar.txt', 'a+');
also you can add line break using PHP_EOL
fwrite($log_avatar, $img_name.PHP_EOL);
that is what makes the text file get empty
about upload files there is nothing wrong in your code. but i think you are have error in your html form because filename is blank
make sure you set the form enctype Attribute to "multipart/form-data"
<form method="POST" enctype="multipart/form-data" action="up.php">
and using the correct input name in your upload script
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