常有人问起关于把附件（WORD、EXCEL、PDF）或图片存贮到数据库的问题，本人也曾深受其扰。特将范例程序整理出来,包括sql server、oracle、mysql三个版本,供参考。
1、FOR SQL SERVER (存放文件的字段的类型为TEXT,一定要把PHP.INI中mssql.textlimit与mssql.textsize前面的分号去掉，并且值设置大一点.此问题是由PHPTEAMK兄解决的)
保存入库程序：
if($upfile!=''){
$PSize = filesize($upfile);
$fp=fopen($upfile, "rb");
$mssqldoc = base64_encode(fread($fp, $PSize));
$upfiletype = strtolower(substr( strrchr( $upfile_name, "." ), 1 ) );
fclose($fp);
mssql_connect("localhost", "sa", "mypassword") or
die("Unable to connect to SQL server");
@mssql_select_db("db") or die("Unable to select database");
$sql1="select * from document where do_code=$ar_slavecode";
$result=mssql_query($sql1);
if ($row=mssql_fetch_array($result))
{
$sql="update document set do_file= ('$mssqldoc'),do_timeadded=getdate(),do_type='$upfiletype' ";
$sql.=" where do_code=$ar_slavecode ";
}
else
{
$sql="insert into document (do_code,do_file,do_timeadded,do_type) values (";
$sql.="$ar_slavecode,('$mssqldoc'),getdate(),'$upfiletype')";
}
mssql_query($sql);
从数据库调出显示程序：
$sql="select do_file,do_type from document where do_code='$id'"; $result = mssql_query($sql);
$row = mssql_fetch_array($result);
$data=base64_decode($row[do_file]);
$type=strtoupper($row[do_type]);
if ($type=="DOC")
header("Content-type:application/msword");
else if($type=="XLS")
header("Content-type:application/x-msexcel");
else if($type=="PDF")
header("Content-type:application/pdf");
else
header("Content-Disposition:attachment");
echo $data;
2、FOR MSSQL
字段类型为BLOB。假定文件上传域的名称为Picture。
保存图片：
首先，我们通过“If($Picture != "none")”检
查是否有文件被上传。然后，使用addslashes()函数避免出现数据格式错误。最后，连接MySQL，
选择数据库并插入图片。
显示图片 :
1<html> <body> <? mysql_connect($host,$username,$password) or die("Unable to
2connect to SQL server"); @mysql_select_db($db) or die("Unable to select database");
3$result=mysql_query("SELECT * FROM Images") or die("Can't Perform Query"); While
4($row=mysql_fetch_object($result)) { echo "<IMG SRC=\"Second.php3? PicNum=$row-
5>PicNum\">"; } ?> </body> </html>
Second.php3文件如下：
Image; ?> 3、FOR ORACLE 字段类型为BLOB。 保存程序： $conn=OCILogon("db", "password", "database"); If($upfile!='none') { $upfiletype = strtolower(substr( strrchr( $upfile_name, "." ), 1 ) ); $sql="insert into commondocument (cd_file,cd_timeadded,cd_condition,cd_version,cd_type) values ("; $sql.="EMPTY_BLOB(),sysdate,'$code','$cd_version','$upfiletype') returning cd_file into :cd_file"; //echo $sql; $blob_body = OCINewDescriptor($conn, OCI_D_LOB); $stmt = OCIparse($conn, $sql); OCIBindByName($stmt, ":cd_file", &$blob_body, -1, OCI_B_BLOB); OCIexecute($stmt,OCI_DEFAULT); $fp = fopen($upfile, "r" ); $blob_body->save(fread($fp, filesize($upfile ) ) ); OCIcommit($conn); } 显示程序： ..... echo " ``` 测试文件 ``` "; ...... \-----test2.php---- $conn=OCILogon("oa", "select", "orcl"); $sql="select cd_file,cd_type from commondocument where cd_code='$id' and cd_condition='$condition'"; $stmt = OCIParse($conn,$sql); OCIExecute($stmt); ocicommit($conn); OCIFetchinto($stmt, $row, OCI_RETURN_LOBS); OCIFreeStatement($stmt); OCILogoff($conn); $ty \--------------------------------------------------------------- 晕，居然把我名字也打错！