使用PHP库查询mongo日期时遇到问题

Question

我正在尝试获取与特定日期范围匹配的所有文档。 我已经在Mongo CLI中成功创建了查询，但是在将其转换为PHP Mongo库时遇到了麻烦（我刚刚升级到PHP 7，因此使用新的驱动程序/库需要一些时间来适应）。

为什么我要在CLI中返回结果，但是在我的代码中什么都没有？

$search = [];
if (isset($_GET['days'])) {
    $days = explode(',', $_GET['days']);
    foreach ($days as $day) {
        $date = $dates[$day];
        $start = new DateTime($date, new DateTimeZone('America/New_York'));
        $start = new MongoDB\BSON\UTCDateTime($start);
        $end = new DateTime($date, new DateTimeZone('America/New_York'));
        $end->add(DateInterval::createFromDateString('1 day'));
        $end = new MongoDB\BSON\UTCDateTime($end);
        $search[] = [
            'date.start' => [
                '$gte' => $start,
                '$lte' => $end
            ]
        ];
    }
}
$rEvents = $mongo->events->find($search);

$dates将单词day转换为它对应的日期。 当我检查创建的DateTime对象时，它们是正确的，但是仍然没有结果返回。 我哪里出问题了？

Answer 1

我工作了一段时间，直到发现了如何做（它与php 7新的mongo驱动程序兼容）。

my db="TEST"
my collection="colUser"

因此，让我们开始吧。

1）首先，我们必须实例化驱动程序php，如下所示：

编码

 $database=new MongoDB\Driver\Manager;
   // Instantiate the php 7 mongo library
 //2)Prepare the date (mongo uses miliseconds from 1970 not seconds 
//like php)
$date1="2015-01-02";
$date1=new DateTime($date1);
$date1=new MongoDB\BSON\UTCDatetime($date1->getTimeStamp() * 
1000);//Transforming into miliseconds

$date2="2016-06-01";
$date2=new DateTime($date2);
$date2=new MongoDB\BSON\UTCDatetime($date2->getTimeStamp() * 1000);// 
//Transforming second date into ms
//Prepare the array to select time  from $date1 to $date2 from mongo db
$array=array("date"=>array(
                     "\$gte"=>$date1,
                     "\$lt"=>$date2 ));                      
$query=new MongoDB\Driver\Query($array);// Preparing the query
$rows=$database->executeQuery("TEST.colUser",$query);// Getting the data into 
//object $rows
// NOW WHE HAVE TO PRINT THE DATE`s THAT WE FOUND IN THE INTERVAL FROM THE 
//COLLECTIONS
foreach($rows as $k=>$v){// each object $v represents objects from one row
  foreach($v as $key=>$value){// each object from one row
                 if($key=="date"){// "date" is the index time from collection
                     foreach($value as $t=>$time){// $value is an object and 
//it needs an foreach "[milliseconds]->time"
                             $time=$time / 1000; //transform from ms into 
//seconds
                     }
                           echo date("Y-m-d",(int)$time);//finally we are 
//echoing the time in YEAR-MONTH-DAY     
                           echo "<br>";                
                   }
         }
}