pg_lo_close
pg_lo_export
PostgreSQL 함수 목록
PHP Manual

# pg_lo_create

(PHP 4 >= 4.2.0, PHP 5)

pg_lo_create — Create a large object

### 설명

int pg_lo_create ([ resource `$connection` [, mixed `$object_id` ]] )
int pg_lo_create ( mixed `$object_id` )

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().

### 인수

`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() or pg_pconnect().

`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 was added in PHP 5.3 and relies on functionality that first appeared in PostgreSQL 8.1.

### 반환값

A large object OID or `FALSE` on error.

### 변경점

버전 | 설명
--- | ---
5.3.0 | The optional `object_id` was added.

### 예제

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");
?>`

pg_lo_close
pg_lo_export
PostgreSQL 함수 목록
PHP Manual