Php/docs/function.pg-lo-create
pg_lo_create
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_lo_create — Create a large object
Description
pg_lo_create
([ resource $connection
[, mixed $object_id
]] ) : int
pg_lo_create
( mixed $object_id
) : int
pg_lo_create() creates a large
object and returns the OID of the large
object. PostgreSQL access modes
INV_READ, INV_WRITE, and
INV_ARCHIVE are not supported, the
object is created always with both read and write
access. INV_ARCHIVE has been removed from PostgreSQL itself
(version 6.3 and above).
To use the large object interface, it is necessary to enclose it within a transaction block.
Instead of using the large object interface (which has no access controls
and is cumbersome to use), try PostgreSQL's bytea
column type and pg_escape_bytea().
Note:
This function used to be called pg_locreate().
Parameters
connection- PostgreSQL database connection resource. When
connectionis not present, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect(). object_id- If an
object_idis given the function will try to create a large object with this id, else a free object id is assigned by the server. The parameter was added in PHP 5.3 and relies on functionality that first appeared in PostgreSQL 8.1.
Return Values
A large object OID or FALSE on error.
Examples
Example #1 pg_lo_create() example
<?php $database = pg_connect("dbname=jacarta"); pg_query($database, "begin"); $oid = pg_lo_create($database); echo "$oid\n"; $handle = pg_lo_open($database, $oid, "w"); echo "$handle\n"; pg_lo_write($handle, "large object data"); pg_lo_close($handle); pg_query($database, "commit");?>
