PHP上传文件Mysql失败

Question

有人可以指出我在这段代码中犯的错误吗？

for($i=0; $i<count($fileDirectories); $i++){

            echo 'asdasd';
            echo $fileDirectories[$i];
            $queryFiles = "UPDATE maintable SET Picture$i = '$fileDirectories[$i]' WHERE id = $idNeeded;";
            mysqli_query($link, $queryFiles); 
        }

我就是找不到合适的伙伴

Answer 1

$queryFiles = "UPDATE maintable SET Picture$i = '$fileDirectories[$i]' WHERE id = '$idNeeded'";