its not very clear if pg_lo_import needs to have pg_lo_open called first. Because pg_lo_import handles the process of writign to the file, it seems logical that pg_lo_open does not need to be called. However due to the ugly nature of how postgres handles oid objects, it would be nice to have this documented.
pg_lo_import
(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
pg_lo_import — Import a large object from file
Descrição
pg_lo_import() creates a new large object in the database using a file on the filesystem as its data source.
To use the large object interface, it is necessary to enclose it within a transaction block.
Nota:
This function used to be called pg_loimport().
Parâmetros
-
connection -
Uma instância de PgSql\Connection. Quando o parâmetro
connectionnão for especificado, a conexão padrão será usada. A conexão padrão é a última conexão feita por pg_connect() ou pg_pconnect().AvisoA partir do PHP 8.1.0, usar a conexão padrão tornou-se defasado.
-
pathname -
The full path and file name of the file on the client filesystem from which to read the large object data.
-
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 relies on functionality that first appeared in PostgreSQL 8.1.
Valor Retornado
The OID of the newly created large object, ou false em caso de falha.
Registro de Alterações
| Versão | Descrição |
|---|---|
| 8.1.0 |
O parâmetro connection agora espera uma instância de PgSql\Connection;
anteriormente, um resource era esperado.
|
Exemplos
Exemplo #1 pg_lo_import() example
<?php
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$oid = pg_lo_import($database, '/tmp/lob.dat');
pg_query($database, "commit");
?>
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User Contributed Notes 4 notes
vi2 at vi2 dot com ¶
22 years ago
yohgaki at php dot net ¶
22 years ago
Due to a bug, OLD API does not available with PHP 4.2.0 and 4.2.1.
PHP 4.2.2 will support OLD API again and will be kept long enough.
New API will be available PHP 4.2.0 to later versions.
yohgaki at php dot net ¶
22 years ago
Due to a bug, PHP 4.2.0 and 4.2.1 does not support pg_lo_import() old API. It's fixed in PHP 4.2.2.
BTW, new API will be always available from PHP 4.2.0 to later versions. Older API will be kept long enough, also.
ceco at noxis dot net ¶
22 years ago
it works for me (php-4.2.1)
not like this
int pg_lo_import ( string pathname [, resource connection])
but
int pg_lo_import ( resource connection, string pathname )
don't know the reason
