(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)
OCILob::erase — Erases a specified portion of the internal LOB data
$offset = null
, int|null $length = null
) : 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.
offset
length
Returns the actual number of characters/bytes erased 或者在失败时返回 false.
| 版本 | 说明 |
|---|---|
| 8.0.0, PECL OCI8 3.0.0 |
offset and length are now nullable.
|
| 8.0.0, PECL OCI8 3.0.0 | The OCI-Lob class was renamed to OCILob to align with PHP naming standards. |