pg_lo_write (PHP 4 >= 4.2.0, PHP 5)
pg_lo_write -- Write to a large object
Descripción int
pg_lo_write ( resource large_object, string data [, int len] )
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() .
Lista de parámetros
large_object
PostgreSQL large object (LOB) resource, returned by pg_lo_open()
data
The data to be written to the large object. If len is
specified and is less than the length of data , only
len bytes will be written.
len
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 .
Valores retornados
The number of bytes written to the large object, or FALSE
Ejemplos
Ejemplo 1. pg_lo_write() example
<?php = 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" ); ?>
