pg_lo_tell
(PHP 4 >= 4.2.0, PHP 5)
pg_lo_tell —
Returns current seek position a of large object
Description
int pg_lo_tell
( resource $large_object
)
To use the large object interface, it is necessary to
enclose it within a transaction block.
Parameters
-
large_object
-
PostgreSQL large object (LOB) resource, returned by pg_lo_open().
Return Values
The current seek offset (in number of bytes) from the beginning of the large
object. If there is an error, the return value is negative.
Examples
Example #1 pg_lo_tell() example
<?php
$doc_oid = 189762345;
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$handle = pg_lo_open($database, $doc_oid, "r");
pg_lo_seek($handle, 50000, PGSQL_SEEK_SET);
$offset = pg_lo_tell($handle);
echo "Seek position is: $offset";
pg_query($database, "commit");
?>
The above example will output:
pg_lo_seek
