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
OCI-Lob::seek (
int
$offset [,
int $whence = OCI_SEEK_SET ] ) :
bool
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 tooffset -
OCI_SEEK_CUR- addsoffsetbytes to the current position -
OCI_SEEK_END- addsoffsetbytes 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。
