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<?php $daysOfWeek = array('pon','wt','sr','czw','pt','so','nd'); foreach($daysOfWeek as $key=>$value) { echo $key.' '.$value; } $converted = array(); foreach ($daysOfWeek as $key=>$checked) { $converted[++$key] = $checked; } $converted[0] = $converted[7]; unset($converted[7]); print_r($converted);
based on evCPA
Output for 4.3.0 - 7.2.6
0 pon1 wt2 sr3 czw4 pt5 so6 ndArray ( [1] => pon [2] => wt [3] => sr [4] => czw [5] => pt [6] => so [0] => nd )