OCI-Lob
PHP Manual

OCI-Lob::erase

Erases a specified portion of the internal LOB data

Description

int OCI-Lob::erase ([ int $offset [, int $length ]] )

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.