pg_lo_truncate
(PHP 5 >= 5.6.0, PHP 7, PHP 8)
pg_lo_truncate — Truncates a large object
Description
pg_lo_truncate() truncates an PgSql\Lob instance.
To use the large object interface, it is necessary to enclose it within a transaction block.
Parameters
-
lob -
An PgSql\Lob instance, returned by pg_lo_open().
-
size -
The number of bytes to truncate.
Return Values
Returns true on success or false on failure.
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_truncate() example
<?php
$doc_oid = 189762345;
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$handle = pg_lo_open($database, $doc_oid, "r");
// Truncate to 0
pg_lo_truncate($handle, 0);
pg_query($database, "commit");
echo $data;
?>
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