MongoDB\Driver\Command::__construct

(mongodb >=1.0.0)

MongoDB\Driver\Command::__construct — Create a new Command

说明

final public MongoDB\Driver\Command::__construct ( array|object $document )

参数

document: The complete command to construct

错误／异常

Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

范例

Example #1 MongoDB\Driver\Command::__construct() example

  <?php

$manager  = new  MongoDB \ Driver \ Manager ( "mongodb://localhost:27017" );
 $command  = new  MongoDB \ Driver \ Command (array( "buildinfo"  =>  1 ));

try {
     $cursor  =  $manager -> executeCommand ( "admin" ,  $command );
     $response  =  $cursor -> toArray ()[ 0 ];
} catch( MongoDB \ Driver \ Exception $e ) {
    echo  $e -> getMessage (),  "\n" ;
    exit;
}
 var_dump ( $response );

 ?>

以上例程的输出类似于：

array(13) {
  ["version"]=>
  string(14) "2.8.0-rc2-pre-"
  ["gitVersion"]=>
  string(62) "b743d7158f7642f4da6b7eac8320374b3b88dc2e modules: subscription"
  ["OpenSSLVersion"]=>
  string(25) "OpenSSL 1.0.1f 6 Jan 2014"
  ["sysInfo"]=>
  string(104) "Linux infant 3.16.0-24-generic #32-Ubuntu SMP Tue Oct 28 13:07:32 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49"
  ["loaderFlags"]=>
  string(91) "-fPIC -pthread -Wl,-z,now -rdynamic -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -Wl,-E"
  ["compilerFlags"]=>
  string(301) "-Wnon-virtual-dtor -Woverloaded-virtual -std=c++11 -fPIC -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -pipe -Werror -O3 -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -Wno-unused-but-set-variable -fno-builtin-memcmp -std=c99"
  ["allocator"]=>
  string(8) "tcmalloc"
  ["versionArray"]=>
  array(4) {
    [0]=>
    int(2)
    [1]=>
    int(8)
    [2]=>
    int(0)
    [3]=>
    int(-8)
  }
  ["javascriptEngine"]=>
  string(2) "V8"
  ["bits"]=>
  int(64)
  ["debug"]=>
  bool(false)
  ["maxBsonObjectSize"]=>
  int(16777216)
  ["ok"]=>
  float(1)
}

参见

MongoDB\Driver\Manager::executeCommand() - Execute a database command
MongoDB\Driver\Cursor