OCI-Lob->seek
(PHP 5, 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.