pg_lo_tell

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

pg_lo_tell — 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()。

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User Contributed Notes 1 note

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Marv-CZ
11 years ago
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;
}
?>
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备份地址：http://www.lvesu.com/blog/php/function.pg-lo-tell.php