large

PG_LO_OPEN(3)															     PG_LO_OPEN(3)

pg_lo_open - Open a large object

SYNOPSIS

       resource pg_lo_open (resource  $connection, int	$oid, string  $mode)

DESCRIPTION

       pg_lo_open(3) opens a large object in the database and returns large object resource so that it can be manipulated.

       Warning

	       Do not close the database connection before closing the large object resource.

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

       Note

	       This function used to be called pg_loopen(3).

PARAMETERS

	      o $connection
		- PostgreSQL database connection resource. When $connection is not present, the default connection is used. The default connection
		is the last connection made by pg_connect(3) or pg_pconnect(3).

	      o $oid
		- The $OID of the large object in the database.

	      o $mode
		- Can be either "r" for read-only, "w" for write only or "rw" for read and write.

RETURN VALUES

	A large object resource or FALSE on error.

EXAMPLES

       Example #1

	      pg_lo_open(3) example

	      <?php
		 $database = pg_connect("dbname=jacarta");
		 pg_query($database, "begin");
		 $oid = pg_lo_create($database);
		 echo "$oid
";
		 $handle = pg_lo_open($database, $oid, "w");
		 echo "$handle
";
		 pg_lo_write($handle, "large object data");
		 pg_lo_close($handle);
		 pg_query($database, "commit");
	      ?>

SEE ALSO

       pg_lo_close(3), pg_lo_create(3).

PHP Documentation Group 													     PG_LO_OPEN(3)