Updating CLOB in table

Hi, 
I am currently cleaning up my Oracle Database (Oracle 10g XE) filled with approximately 3000 articles. In the body of these articles some HTML-code such as img - tags etc. is placed. 
I wrote a little script to clean this up. But when I try to update my table nothing happens (value of CLOB stays the same, and I get no errors while using error_reporting(E_ALL)). 
Anyone got an idea? My code: 
<? 
/* this code is placed within while-loop, going through all articles */ 
if(eregi("(<img[^>]*>)", $ARTIKEL_BODY) OR eregi("(<IMG[^>]*>)", $ARTIKEL_BODY)) 
{ 
echo "Artikel " . $i . " has got an img tag."; 
$ARTIKEL_BODY = eregi_replace("(<img[^>]*>)", "", $ARTIKEL_BODY); 
$ARTIKEL_BODY = eregi_replace("(<IMG[^>]*>)", "", $ARTIKEL_BODY); 
$query_update = "UPDATE TBLARTIKELS 
 SET ARTIKEL_BODY = EMPTY_CLOB() WHERE ARTIKEL_ID = " . $row['ARTIKEL_ID'] . " 
RETURNING ARTIKEL_BODY INTO :ARTIKEL_BODY"; 
$stid2 = oci_parse($conn, $query_update); 
$clob = oci_new_descriptor($conn, OCI_D_LOB); 
ocibindbyname($stid2, ":ARTIKEL_BODY", $clob, -1, OCI_B_CLOB); 
oci_execute($stid2, OCI_DEFAULT); 
if($clob->save($ARTIKEL_BODY)) 
{ 
echo "Artikel " . $i . " changed."; 
echo $ARTIKEL_BODY; 
} 
else 
{ 
echo "Something is wrong at article " . $i; 
} 
$clob->free(); 
?>

1. Why are you doing a test for img and IMG when using eregi, which is case insensitive; one or the other will suffice with no need for the OR.
2. Are you running the block of code correctly, i.e. is
"echo "Artikel " . $i . " has got an img tag.";"
printing output?
3. Are you assigning $ARTIKEL_BODY correctly before the block? Further down you use $row['ARTIKEL_ID'], so I assume before the block you have assigned $row['ARTIKEL_BODY'] to $ARTIKEL_BODY.
4. You are using oci_execute($stid2, OCI_DEFAULT); (which is not auto-commit) but I cannot see an expressed oci_commit() in that code, I assume this is done further down in some unposted code?
Need to see all of the code to get a better idea. Often problems occur in the silliest of places...

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File "<string>", line 37, in ?
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