OCI-Lob::seek

(PHP 5, PHP 7, PECL OCI8 >= 1.1.0)

OCI-Lob::seek — Sets the internal pointer of the large object

说明

bool OCI-Lob::seek ( int $offset [, int $whence = OCI_SEEK_SET ] )

Sets the internal pointer of the large object.

参数

offset

Indicates the amount of bytes, on which internal pointer should be moved from the position, pointed by whence.

whence

May be one of:

  • OCI_SEEK_SET - sets the position equal to offset
  • OCI_SEEK_CUR - adds offset bytes to the current position
  • OCI_SEEK_END - adds offset bytes to the end of large object (use negative value to move to a position before the end of large object)

返回值

成功时返回 TRUE， 或者在失败时返回 FALSE。

User Contributed Notes

christopher dot jones at oracle dot com 26-Feb-2008 01:38
The default value for $whence is OCI_SEEK_SET.