我必须将输入字段中的文件保存到数据库,我会这样做:
$mkey = mysqli_insert_id($mysqli);
$i=0;
while (isset($_FILES['file'.$i])) {
$filepath = ini_get('upload_tmp_dir')."/".basename($_FILES['file'.$i]['tmp_name']);
$filepath = addslashes($filepath);
$handle = fopen($filepath, "rb");
$content = fread($handle, filesize($filepath));
$stmt = $mysqli->prepare("INSERT INTO attachment (filename,filecontent,mkey) VALUES (?,?,?)");
$stmt->bind_param("sbi",$_FILES['file'.$i]['name'],$content,$mkey);
$stmt->execute();
fclose($handle);
$i++;
}
没有出现错误,其他2个字段mkey和filename填充在数据库列中,但内容为no,$ content在我的浏览器中显示为print_r,我确定$ content变量不为空,但mysql没有显示任何内容内容。
答案 0 :(得分:2)
RTM; - )
如果变量的数据大小超过最大值。允许的数据包大小(max_allowed_packet),您必须在类型中指定b并使用mysqli_stmt_send_long_data()以数据包形式发送数据。
所以我自己从未这样做,但我认为它需要根据您的代码和example on the functions doc page看起来像这样:
$filepath = ini_get('upload_tmp_dir')."/".basename($_FILES['file'.$i]['tmp_name']);
$filepath = addslashes($filepath);
$handle = fopen($filepath, "rb");
$content = null;
$stmt = $mysqli->prepare("INSERT INTO attachment (filename,filecontent,mkey) VALUES (?,?,?)");
$stmt->bind_param("sbi",$_FILES['file'.$i]['name'], $content, $mkey);
while (!feof($handle)) {
// $maxPacketSize would be the size of your max packet setting for mysql,
// or something safely assumed to be below it
$stmt->send_long_data(1, fread($handle, $maxPacketSize));
}
fclose($handle);
$stmt->execute();