pg_lo_read_all

    (PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

    pg_lo_read_all — Reads an entire large object and send straight to browser

    Descripción

    pg_lo_read_all(PgSql\Lob$lob): int

    pg_lo_read_all() reads a large object and passes it straight through to the browser after sending all pending headers. Mainly intended for sending binary data like images or sound.

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

    Nota:

    This function used to be called pg_loreadall().

    Parámetros

    lob

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

    Valores devueltos

    Number of bytes read.

    Historial de cambios

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

    Ejemplos

    Ejemplo #1 pg_lo_read_all() example

    <?php
    header    ('Content-type: image/jpeg');
    $image_oid = 189762345;
    $database = pg_connect("dbname=jacarta");
    pg_query($database, "begin");
    $handle = pg_lo_open($database, $image_oid, "r");
    pg_lo_read_all($handle);
    pg_query($database, "commit");
    ?>

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