Php/docs/function.pg-lo-read
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pg_lo_read
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_lo_read — Read a large object
Description
pg_lo_read
( resource $large_object
[, int $len = 8192
] ) : string
pg_lo_read() reads at most
len 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
large_object- PostgreSQL large object (LOB) resource, returned by pg_lo_open().
len- An optional maximum number of bytes to return.
Return Values
A string containing len bytes from the
large object, or FALSE on error.
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;?>
