PHP Manual: pg_lo

Description

function pg_lo_read(PgSql\Lob $lob, int $length = 8192): string|false

pg_lo_read() reads at most length bytes from a large object and returns it as a string.

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

Note:
This function used to be called pg_loread().

Parameters

lob: An PgSql\Lob instance, returned by pg_lo_open().
length: An optional maximum number of bytes to return.

Return Values

A string containing length bytes from the large object, or false on error.

Changelog

Version	Description
8.1.0	The `lob` parameter expects an PgSql\Lob instance now; previously, a resource was expected.

Examples

Example #1 pg_lo_read() example

<?php
   $doc_oid = 189762345;
   $database = pg_connect("dbname=jacarta");
   pg_query($database, "begin");
   $handle = pg_lo_open($database, $doc_oid, "r");
   $data = pg_lo_read($handle, 50000);
   pg_query($database, "commit");
   echo $data;
?>

pg_lo_read

Description

Parameters

Return Values

Changelog

Examples

See Also