= 5.1.2, PHP 7, PHP 8, PECL pdo_pgsql >= 1.0.2)PDO::pgsqlLOBUnlink — Deletes the large object說明public PDO::pgsqlLOBUnlink(s">

PDO::pgsqlLOBUnlink

(PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL pdo_pgsql >= 1.0.2)

PDO::pgsqlLOBUnlink — Deletes the large object

說明

public PDO::pgsqlLOBUnlink(string $oid): bool

Deletes a large object from the database identified by OID.

注意: This function must be called within a transaction.

參數(shù)

oid

A large object identifier

返回值

成功時(shí)返回 true， 或者在失敗時(shí)返回 false。

范例

示例 #1 A PDO::pgsqlLOBUnlink() example

This example unlinks a large object from the database prior to deleting the row that references it from the blobs table we've been using in our PDO::pgsqlLOBCreate() and PDO::pgsqlLOBOpen() examples.

<?php
$db = new PDO('pgsql:dbname=test host=localhost', $user, $pass);
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$db->beginTransaction();
$db->pgsqlLOBUnlink($oid);
$stmt = $db->prepare("DELETE FROM BLOBS where ident = ?");
$stmt->execute(array($some_id));
$db->commit();
?>

參見