Description:
------------
According to the documentation the function ibase_blob_add expects 2 parameters. The first parameter is a resource (the blob handle), the second parameter is a string (the data to be added). But in PHP7 I get a warning message: "ibase_blob_add() expects parameter 2 to be resource, string given ...". The data will not be added to the blob, the function doesn't work.
I haven't found any information for a change in the function-call. So I think I can use the function in the usual way. But it doesn't work.
The data content is smaller than 64K.  

Test script:
---------------
$linkID = ibase_pconnect(.....);
if ($linkID) {
  $transID = ibase_trans(IBASE_WRITE|IBASE_COMMITTED|IBASE_REC_VERSION|IBASE_WAIT, $linkID);
  if ($transID) {


    $blob_id = ibase_blob_create($transID);  
    if ($blob_id) {
      $iadd = ibase_blob_add($blob_id, $text);


      $blob_id_str = ibase_blob_close($blob_id);
      if ($blob_id_str) {
        $queryID = ibase_query($transID, 'update tablename set blobfieldname = ? where ...mywherecondition...', $blob_id_str);
    }
    ibase_commit($transID);
  }
  ibase_close($linkID);
}


Expected result:
----------------
I wish that the function ibase_blob_add again works.