Deletes the large object
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    PDO::pgsqlLOBUnlink

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

    PDO::pgsqlLOBUnlink — Deletes the large object

    Description

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

    Deletes a large object from the database identified by OID.

    Note: This function must be called within a transaction.

    Parameters

    oid

    A large object identifier

    Return Values

    Returns true on success or false on failure.

    Examples

    Example #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();
    ?>

    See Also

    • PDO::pgsqlLOBOpen() - Opens an existing large object stream
    • PDO::pgsqlLOBCreate() - Creates a new large object