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<?php |
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|
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namespace AcyMailing\Libraries\Imap2\Roundcube; |
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|
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/** |
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* Class for sorting an array of MessageHeader objects in a predetermined order. |
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* |
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* @package Framework |
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* @subpackage Storage |
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* @author Aleksander Machniak <[email protected]> |
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*/ |
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class MessageHeaderSorter |
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{ |
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private $uids = []; |
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|
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|
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/** |
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* Set the predetermined sort order. |
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* |
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* @param array $index Numerically indexed array of IMAP UIDs |
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*/ |
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function set_index($index) |
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{ |
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$index = array_flip($index); |
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|
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$this->uids = $index; |
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} |
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|
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/** |
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* Sort the array of header objects |
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* |
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* @param array $headers Array of MessageHeader objects indexed by UID |
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*/ |
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function sort_headers(&$headers) |
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{ |
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uksort($headers, [$this, "compare_uids"]); |
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} |
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|
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/** |
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* Sort method called by uksort() |
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* |
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* @param int $a Array key (UID) |
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* @param int $b Array key (UID) |
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*/ |
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function compare_uids($a, $b) |
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{ |
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// then find each sequence number in my ordered list |
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$posa = isset($this->uids[$a]) ? intval($this->uids[$a]) : -1; |
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$posb = isset($this->uids[$b]) ? intval($this->uids[$b]) : -1; |
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|
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// return the relative position as the comparison value |
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return $posa - $posb; |
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} |
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} |
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