pg_lo_tell

pg_lo_tell

Returns current seek position a of large object

int **pg_lo_tell** PgSql\Lob $lob

returns the current position (offset

from the beginning) of a large object. pg_lo_tell

To use the large object interface, it is necessary to enclose it within a transaction block.

lob

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.

Voorbeeld: example

<?php
   $doc_oid = 189762345;
   $database = pg_connect("dbname=jacarta");
   pg_query($database, "begin");
   $handle = pg_lo_open($database, $doc_oid, "r");
   // Skip first 50000 bytes
   pg_lo_seek($handle, 50000, PGSQL_SEEK_SET);
   // See how far we've skipped
   $offset = pg_lo_tell($handle);
   echo "Seek position is: $offset";
   pg_query($database, "commit");
?>

Seek position is: 50000

pg_lo_seek