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# Pager_Sliding::getOffsetByPageId()

Pager_Sliding::getOffsetByPageId() -- Returns offsets for given pageID.

## Synopsis

    require_once 'Pager/Sliding.php';

``array Pager_Sliding::getOffsetByPageId` ([integer $pageid = `NULL`])`

## Description

Eg, if you pass it `pageID` = 5 and your `delta` is 2 it will return you 3 and 7. PageID of 6 would give you 4 and 8

NB: The behaviour of this function could be misleading: it was left only for compatibility with PEAR::Pager. It could raise some confusion when pageID is within `delta` positions from an extreme: in fact this method returns also the extremes, while $this->_getPageLinks leaves them out. Pager_Sliding works this way: if pageID is NOT an extreme, show first and last page within brackets: [1] << 5 | _6_ | 7 >> [15] So when dealing with pageID within delta positions from an extreme, this method would return the extreme as well, while $this->_getPageLinks would return (for instance) 2 | _3_ | 4 | 5 even if pageID is 3 and delta is 2. Consider this method deprecated and/or subject to changes.

## Parameter

- `integer $pageid` - PageID to get offsets for

## Return value

return array with first and last offsets

## Deprecated

deprecated

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Pager_Sliding::getNextPageID() | Up | Pager_Sliding::getPageData()