php how to test if file has been uploaded completely

Question

Is there any way to check if file has been uploaded completely on the server? My scenario: User uploads file over ftp and my other PHP task is running in cronjob. Now I would li

Answer 1

By checking upload error message you can confirm whethere file complete uploaded or partial uploaded

If upload Error Code is 3 then file uploaded partially

let say your file upload field name myfile

$error=$_FILES['myfile']['error'];
if($error>0){
//Upload Error IS Present check what type of error
switch($error){
    case 1:
        // UPLOAD_ERR_INI_SIZE
        // Value: 1; The uploaded file exceeds the upload_max_filesize directive in php.ini.
        break;
    case 2:
        // UPLOAD_ERR_FORM_SIZE
        // Value: 2; The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.
        break;
    case 3:
        // UPLOAD_ERR_PARTIAL
        // Value: 3; The uploaded file was only partially uploaded.
        break;
    case 4:
        // UPLOAD_ERR_NO_FILE
        // Value: 4; No file was uploaded.
        break;
    case 6:
        // UPLOAD_ERR_NO_TMP_DIR
        // Value: 6; Missing a temporary folder. Introduced in PHP 4.3.10 and PHP 5.0.3.
        break;
    case 7:
        // UPLOAD_ERR_CANT_WRITE
        // Value: 7; Failed to write file to disk. Introduced in PHP 5.1.0.
        break;
    case 8:
        // UPLOAD_ERR_EXTENSION
        // Value: 8; A PHP extension stopped the file upload. PHP does not provide a way to ascertain which extension caused the file upload to stop; examining the list of loaded extensions with phpinfo() may help. Introduced in PHP 5.2.0.
        break;
}

}else{
    //File IS Uploaded you can move or validate other things
}

In case 3 you can check partial upload

If you want to Track file Upload Via FTP Programme if you are running VSFTPD then you can track

file=/var/log/vsftpd.log
initial_files=`grep -c 'OK UPLOAD' $file`;
while [ TRUE ]
do
current_files=`grep -c 'OK UPLOAD' $file`;
if [ $current_files == $initial_files ]; then
     echo "old File Not Uploaded";
else
     echo "new File Uploaded Process New File";
new_file=`grep 'OK UPLOAD' $file | tail -1`;
echo $new_file;
initial_files=$current_files;
fi
sleep 1
done

any problem in understanding please reply