Gets information about the cursor's creation and iteration


(PECL mongo >=1.5.0)

MongoCommandCursor::infoGets information about the cursor's creation and iteration

Описание

public array MongoCommandCursor::info ( void )

This can be called before or after the cursor has started iterating.

Список параметров

У этой функции нет параметров.

Возвращаемые значения

Returns the namespace, batch size, limit, skip, flags, query, and projected fields for this cursor. If the cursor has started iterating, additional information about iteration and the connection will be included.

Примеры

Пример #1 MongoCommandCursor::info() example

<?php
$m 
= new MongoClient();

$cursor = new MongoCommandCursor(
    
$m// MongoClient object
    
'demo.cities'// namespace
    
[
        
'aggregate' => 'cities',
        
'pipeline' => [ [ '$match' => [ '_id' => [ '$exists' => true ] ] ] ],
        
'cursor' => [ 'batchSize' => ],
    ]
);

echo 
"Before iteration started:\n";
var_dump($cursor->info());

echo 
"\nAfter iteration started:\n";
$cursor->rewind();
var_dump($cursor->info());

?>

Результатом выполнения данного примера будет что-то подобное:

 Before iteration started: array(8) {   ["ns"]=>   string(11) "demo.cities"   ["limit"]=>   int(0)   ["batchSize"]=>   int(0)   ["skip"]=>   int(0)   ["flags"]=>   int(0)   ["query"]=>   array(3) {     ["aggregate"]=>     string(6) "cities"     ["pipeline"]=>     array(1) {       [0]=>       array(1) {         ["$match"]=>         array(1) {           ["_id"]=>           array(1) {             ["$exists"]=>             bool(true)           }         }       }     }     ["cursor"]=>     array(1) {       ["batchSize"]=>       int(1)     }   }   ["fields"]=>   NULL   ["started_iterating"]=>   bool(false) }  After iteration started: array(17) {   ["ns"]=>   string(11) "demo.cities"   ["limit"]=>   int(0)   ["batchSize"]=>   int(0)   ["skip"]=>   int(0)   ["flags"]=>   int(0)   ["query"]=>   array(3) {     ["aggregate"]=>     string(6) "cities"     ["pipeline"]=>     array(1) {       [0]=>       array(1) {         ["$match"]=>         array(1) {           ["_id"]=>           array(1) {             ["$exists"]=>             bool(true)           }         }       }     }     ["cursor"]=>     array(1) {       ["batchSize"]=>       int(1)     }   }   ["fields"]=>   NULL   ["started_iterating"]=>   bool(true)   ["id"]=>   int(185840310129)   ["at"]=>   int(0)   ["numReturned"]=>   int(0)   ["server"]=>   string(25) "localhost:27017;-;.;23991"   ["host"]=>   string(9) "localhost"   ["port"]=>   int(27017)   ["connection_type_desc"]=>   string(10) "STANDALONE"   ["firstBatchAt"]=>   int(0)   ["firstBatchNumReturned"]=>   int(1) } 

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