# pg_lo_create

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

pg_lo_create — Create a large object

### Descripción

pg_lo_create(PgSql\Connection `$connection` = ?, mixed `$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().

> Nota:

> This function used to be called pg_locreate().

### Parámetros

`connection`

  An PgSql\Connection instance. When `connection` is unspecified, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().

  Advertencia

  As of PHP 8.1.0, using the default connection is deprecated.

`object_id`

  If an `object_id` is 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 relies on functionality that first appeared in PostgreSQL 8.1.

### Valores devueltos

A large object OID, o `false` en caso de error.

### Historial de cambios

Versión | Descripción
--- | ---
8.1.0 | The `connection` parameter expects an PgSql\Connection instance now; previously, a recurso was expected.

### Ejemplos

Ejemplo #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");
?>`