Blob Upload dosent work.

Question

First my english is very bad. Iam from germany and the problem i have cant fix in forums in germany.
so, please help me...
I have generate a pdf file that i must put in a oracle BLOB field.
Is Oracle 8
here is the code :
<?PHP
$lob_upload="a.pdf";
session_start();
$conn = OCILogon('secret','secret','secret');
$lob = OCINewDescriptor($conn, OCI_D_LOB);
$stmt = OCIParse($conn,"insert into \"tblArchiv\" (\"AR_Objekt\")
values(EMPTY_BLOB()) returning \"AR_Objekt\" into :the_blob");
OCIBindByName($stmt, ':the_blob', &$lob, -1, OCI_B_BLOB);
OCIExecute($stmt, OCI_DEFAULT);
if($lob->savefile($lob_upload)){
OCICommit($conn);
echo "Blob successfully uploaded\n";
}else{
echo "Couldn't upload Blob\n";
OCIFreeDesc($lob);
OCIFreeStatement($stmt);
OCILogoff($conn);
?>
This code generate a new entry. but the blob field ist empty.
Please help
Werner

Answer 1

Now i have found a sample code on Oracle side :
<?php
// Sample form to upload and insert data into an ORACLE CLOB column
// using PHP's Oracle 8 API.
// Based on http://www.php.net/manual/en/function.oci-new-descriptor.php
// modified to work on CLOBs and use register_globals = Off.
// Before running this script, execute these statements in SQL*Plus:
// drop table myclobtab;
// create table myclobtab (c1 number, c2 clob);
// Tested with PHP 4.3.3 against Oracle 9.2
if (!isset($_FILES['lob_upload'])) {
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST" enctype="multipart/form-data">
Upload file: <input type="file" name="lob_upload">
<input type="submit" value="Upload">
</form>
<?php
else {
$myid = 1; // should really be a unique id e.g. a sequence number
$conn = OCILogon('secret', 'secret', 'secret');
// Delete any existing CLOB so the query at the bottom
// displays the new data
#$query = 'DELETE FROM MYCLOBTAB';
#$stmt = OCIParse ($conn, $query);
#OCIExecute($stmt, OCI_COMMIT_ON_SUCCESS);
#OCIFreeStatement($stmt);
// Insert the CLOB from PHP's temporary upload area
$lob = OCINewDescriptor($conn, OCI_D_LOB);
$stmt = OCIParse($conn, "INSERT INTO \"tblArchiv\" (\"AR_Objekt\") VALUES(EMPTY_BLOB()) RETURNING \"AR_Objekt\" INTO :C2");
OCIBindByName($stmt, ':C2', $lob, -1, OCI_B_BLOB);
OCIExecute($stmt, OCI_DEFAULT);
// The function $lob->savefile(...) reads from the uploaded file.
// If the data was already in a PHP variable $myv, the
// $lob->save($myv) function could be used instead.
if ($lob->savefile($_FILES['lob_upload']['tmp_name'])) {
OCICommit($conn);
echo "CLOB successfully uploaded\n";
else {
echo "Could not upload CLOB\n";
$lob->free();
OCIFreeStatement($stmt);
OCILogoff($conn);
?>
This code runs good.
But. The PDF File is on the server right now.
So i change the code like this :
<?php
$myid = 1; // should really be a unique id e.g. a sequence number
$conn = OCILogon('secret', 'secret', 'secret');
// Delete any existing CLOB so the query at the bottom
// displays the new data
#$query = 'DELETE FROM MYCLOBTAB';
#$stmt = OCIParse ($conn, $query);
#OCIExecute($stmt, OCI_COMMIT_ON_SUCCESS);
#OCIFreeStatement($stmt);
// Insert the CLOB from PHP's temporary upload area
$lob = OCINewDescriptor($conn, OCI_D_LOB);
$stmt = OCIParse($conn, "INSERT INTO \"tblArchiv\" (\"AR_Objekt\") VALUES(EMPTY_BLOB()) RETURNING \"AR_Objekt\" INTO :C2");
OCIBindByName($stmt, ':C2', $lob, -1, OCI_B_BLOB);
OCIExecute($stmt, OCI_DEFAULT);
// The function $lob->savefile(...) reads from the uploaded file.
// If the data was already in a PHP variable $myv, the
// $lob->save($myv) function could be used instead.
          $form_data="a.pdf";
          $data = addslashes(fread(fopen($form_data, "r"), filesize($form_data)));
          if ($lob->save($data)) {
OCICommit($conn);
echo "CLOB successfully uploaded\n";
else {
echo "Could not upload CLOB\n";
$lob->free();
OCIFreeStatement($stmt);
OCILogoff($conn);
?>
This code have the same problem. It inserted an new entry but the blobfield is empty.
what is the mistake i made ?
again : my english is very bad sorry.
thanks
Werner