/**
 * Created by PhpStorm.
 * User: www.kuitao8.com
 * Date: 14-6-18
 * Time: 下午5:49
 */
function getDatesFromRange($start, $end){
    $dates = array($start);
    while(end($dates) < $end){
        $dates[] = date('Y-m-d', strtotime(end($dates).' +1 day'));
    }
    return $dates;
}
$time = getDatesFromRange('2014-06-12','2014-06-19');

foreach($time as $key => $value) {
    if($key % 2 ==0){
     $news[] = $value;
    }
    if($key % 2 ==1){
        $new2[] = $value;
    }

}
$count = count($news);
echo "
";
for($i=0;$i<$count;$i++) {
    $data2 = $news[$i];
    $data3 = $new2[$i];
    echo "{$data2}---------{$data3}"."
";
}
//结果
/*
2014-06-12---------2014-06-13
2014-06-14---------2014-06-15
2014-06-16---------2014-06-17
2014-06-18---------2014-06-19*/