pg_lo_export(3) [php man page]

PG_LO_EXPORT(3) 														   PG_LO_EXPORT(3)

pg_lo_export - Export a large object to file

SYNOPSIS

       bool pg_lo_export ([resource  $connection], int	$oid, string  $pathname)

DESCRIPTION

       pg_lo_export(3) takes a large object in a PostgreSQL database and saves its contents to a file on the local filesystem.

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

       Note

	       This function used to be called pg_loexport(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 $pathname
		- The full path and file name of the file in which to write the large object on the client filesystem.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      pg_lo_export(3) example

	      <?php
		 $database = pg_connect("dbname=jacarta");
		 pg_query($database, "begin");
		 $oid = pg_lo_create($database);
		 $handle = pg_lo_open($database, $oid, "w");
		 pg_lo_write($handle, "large object data");
		 pg_lo_close($handle);
		 pg_lo_export($database, $oid, '/tmp/lob.dat');
		 pg_query($database, "commit");
	      ?>

SEE ALSO

       pg_lo_import(3).

PHP Documentation Group 													   PG_LO_EXPORT(3)

PG_LO_IMPORT(3) 														   PG_LO_IMPORT(3)

pg_lo_import - Import a large object from file

SYNOPSIS

       int pg_lo_import ([resource  $connection], string  $pathname, [mixed  $object_id])

DESCRIPTION

       pg_lo_import(3) 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.

       Note

	      When  safe  mode is enabled, PHP checks whether the files or directories being operated upon have the same UID (owner) as the script
	      that is being executed.

       Note

	       This function used to be called pg_loimport(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 $pathname
		- The full path and file name of the file on the client filesystem from which to read the large object data.

	      o $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.

RETURN VALUES

	The $OID of the newly created large object, or FALSE on failure.

CHANGELOG

       +--------+-------------------------------------+
       |Version |				      |
       |	|				      |
       |	|	      Description	      |
       |	|				      |
       +--------+-------------------------------------+
       | 5.3.0	|				      |
       |	|				      |
       |	|  The optional $object_id was added. |
       |	|				      |
       +--------+-------------------------------------+
EXAMPLES

       Example #1

	      pg_lo_import(3) example

	      <?php
		 $database = pg_connect("dbname=jacarta");
		 pg_query($database, "begin");
		 $oid = pg_lo_import($database, '/tmp/lob.dat');
		 pg_query($database, "commit");
	      ?>

SEE ALSO

       pg_lo_export(3), pg_lo_open(3).

PHP Documentation Group 													   PG_LO_IMPORT(3)