Mid-Atlantic Developer Conference - Call for Speakers

MongoCommandCursor::info

(PECL mongo >=1.5.0)

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

说明

public array MongoCommandCursor::info ( void )

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

参数

此函数没有参数。

返回值

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.

范例

Example #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());

?>

以上例程的输出类似于:

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)
}

参见

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top