如果要将图像存储在数据库中(顺便说一句,我个人不喜欢这样做),最好存储原始数据 – Base64编码数据使其更大,意味着必须在渲染图像,这增加了处理开销.

这是你可以插入原始二进制数据(假设MysqL扩展名)：

$data = file_get_contents($_FILES['name_of_control']['tmp_name']);
$data = MysqL_real_escape_string($data);

$query = "
  INSERT INTO table
    (`blob_column`)
  VALUES
    ('$data')
";

MysqL_query($query);

如果你真的想要Base64编码(在这种情况下,它可以存储在varchar中),只需添加一个base64_encode()调用：

$data = file_get_contents($_FILES['name_of_control']['tmp_name']);
$data = base64_encode($data);

// There is an argument that this is unnecessary with base64 encoded data,but
// better safe than sorry :)
$data = MysqL_real_escape_string($data);

$query = "
  INSERT INTO table
    (`varchar_column`)
  VALUES
    ('$data')
";

MysqL_query($query);