pg_lo_write

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

    pg_lo_write — Write to a large object

    Descrição

    pg_lo_write(PgSql\Lob$lob, string$data, ?int$length = null): int|false

    pg_lo_write() writes data into a large object at the current seek position.

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

    Nota:

    This function used to be called pg_lowrite().

    Parâmetros

    lob

    Uma instância de PgSql\Lob, retornada por pg_lo_open().

    data

    The data to be written to the large object. If length is an int and is less than the length of data, only length bytes will be written.

    length

    An optional maximum number of bytes to write. Must be greater than zero and no greater than the length of data. Defaults to the length of data.

    Valor Retornado

    The number of bytes written to the large object, or false on error.

    Registro de Alterações

    VersãoDescrição
    8.1.0 O parâmetro lob agora espera uma instância de PgSql\Lob; anteriormente, um resource era esperado.
    8.0.0length is now nullable.

    Exemplos

    Exemplo #1 pg_lo_write() example

    <?php
    $doc_oid     = 189762345;
    $data = "This will overwrite the start of the large object.";
    $database = pg_connect("dbname=jacarta");
    pg_query($database, "begin");
    $handle = pg_lo_open($database, $doc_oid, "w");
    $data = pg_lo_write($handle, $data);
    pg_query($database, "commit");
    ?>

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