OCILob::seek

(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)

OCILob::seekSets the internal pointer of the large object

说明

public OCILob::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 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

更新日志

版本 说明
8.0.0, PECL OCI8 3.0.0 The OCI-Lob class was renamed to OCILob to align with PHP naming standards.

User Contributed Notes

christopher dot jones at oracle dot com 25-Feb-2008 04:38
The default value for $whence is OCI_SEEK_SET.
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