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    pg_lo_truncate

    (PHP 5 >= 5.6.0, PHP 7, PHP 8)

    pg_lo_truncate — Truncates a large object

    Descripción

    pg_lo_truncate(PgSql\Lob $lob, int $size): bool

    pg_lo_truncate() truncates an PgSql\Lob instance.

    To use the large object interface, it is necessary to enclose it within a transaction block.

    Parámetros

    lob

    An PgSql\Lob instance, returned by pg_lo_open().

    size

    The number of bytes to truncate.

    Valores devueltos

    Devuelve true en caso de éxito o false en caso de error.

    Historial de cambios

    Versión Descripción
    8.1.0 The lob parameter expects an PgSql\Lob instance now; previously, a recurso was expected.

    Ejemplos

    Ejemplo #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;
    ?>

    Ver también

    • pg_lo_tell() - Returns current seek position a of large object

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