(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
pg_lo_read — Read a large object
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().
lob
An PgSql\Lob instance, returned by pg_lo_open().
length
An optional maximum number of bytes to return.
Version | Description |
---|---|
8.1.0 | The lob parameter expects an PgSql\Lob instance now; previously, a resource was expected. |
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;
?>