Erases a specified portion of the internal LOB data

# OCILob::erase

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

OCILob::erase — Erases a specified portion of the internal LOB data

### Description

public OCILob::erase(?int `$offset` = `null`, ?int `$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.

### Parameters

`offset`

`length`

### Return Values

Returns the actual number of characters/bytes erased or `false` on failure.

### Changelog

Version | Description
--- | ---
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.

### See Also

- OCILob::truncate

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