To read LOB into variable you can use OCI-Lob::load
$foo = $MyBlob->load();
(PHP 5, PECL OCI8 >= 1.1.0)
OCI-Lob::read — Reads part of the large object
length bytes from the current position of
LOB's internal pointer.
Reading stops when
length bytes have been read or
end of the large object is reached. Internal pointer of the large object
will be shifted on the amount of bytes read.
The length of data to read, in bytes.
Returns the contents as a string, Im Fehlerfall wird