OCILob::erase
(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)
OCILob::erase — Erases a specified portion of the internal LOB data
说明
OCILob::erase
( int
$offset = ?
, int $length = ?
) : int|false
Erases a specified portion of the internal LOB data starting at a
specified offset. If called without parameters, it
erases all LOB data.
For BLOBs, erasing means that the existing LOB value is overwritten with zero-bytes. For CLOBs, the existing LOB value is overwritten with spaces.
参数
-
offset -
-
length -
返回值
Returns the actual number of characters/bytes erased 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. |