Manual do PHP
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# lob->erase

(no version information, might be only in CVS)

lob->erase -- Erases a specified portion of the internal LOB data

## Description

int lob->erase ( [int offset [, int length]])

Erases a specified portion of the internal LOB data starting at a specified offset. Parameters length and offset are optional. lob->erase() erases all LOB data by default.

For BLOBs, erasing means that the existing LOB value is overwritten with zero-bytes. For CLOBs, the existing LOB value is overwritten with spaces.

lob->erase() returns the actual number of characters/bytes erased or `FALSE` in case of error.

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