OCI-Lob::seek()

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

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 to$offset
• OCI_SEEK_CUR- adds$offsetbytes to the current position
• OCI_SEEK_END- adds$offsetbytes 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。

参见

• OCI-Lob::rewind
• OCI-Lob::tell
• OCI-Lob::eof

The default value for $whence is OCI_SEEK_SET.