pg_lo_tell

Descripción

pg_lo_tell() returns the current position (offset from the beginning) of a large object.

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

Lista de parámetros

Valores retornados

The current seek offset (in number of bytes) from the beginning of the large object. If there is an error, the return value is negative.

Ejemplos

Ejemplo 1. pg_lo_tell() example <?php    $doc_oid = 189762345;    $database = pg_connect("dbname=jacarta");    pg_query($database, "begin");    $handle = pg_lo_open($database, $doc_oid, "r");    // Skip first 50000 bytes    pg_lo_seek($handle, 50000, PGSQL_SEEK_SET);    // See how far we've skipped    $offset = pg_lo_tell($handle);    echo "Seek position is: $offset";    pg_query($database, "commit"); ?> El resultado del ejemplo seria: Seek position is: 50000

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