pg_lo_tell()
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
返回大型对象的当前指针位置
说明
pg_lo_tell(resource $large_object): int
pg_lo_tell()返回当前指针位置(大型对象中从头开始的偏移量)。
参见pg_lo_seek()。
Function to take a large object size: <?php function pg_lo_size ($lo) { $pos = pg_lo_tell ($lo); pg_lo_seek ($lo, 0, PGSQL_SEEK_END); $size = pg_lo_tell ($lo); pg_lo_seek ($lo, $pos, PGSQL_SEEK_SET); return $size; } ?>