MONGODB.LASTERROR(3)							 1						      MONGODB.LASTERROR(3)

MongoDB::lastError - Check if there was an error on the most recent db operation performed

SYNOPSIS

       public array MongoDB::lastError (void  )

DESCRIPTION

	This method is equivalent to:

       <?php

       public function lastError() {
	   return $this->command(array('getlasterror' => 1));
       }

       ?>

PARAMETERS

       This function has no parameters.

RETURN VALUES

	Returns the error, if there was one.

EXAMPLES

       Example #1

	      MongoDB.lastError(3) NULL error example

	      <?php
	      $db->resetError();
	      var_dump($db->lastError());
	      ?>

	      The above example will output something similar to:

	      array(3) {
		["err"]=>
		NULL
		["n"]=>
		int(0)
		["ok"]=>
		float(1)
	      }

       Example #2

	      MongoDB.lastError(3) duplicate key example

	      <?php
	      $c = $db->selectCollection("foo");

	      // insert two documents with the same _id
	      $c->insert(array("_id" => 1));
	      $c->insert(array("_id" => 1));

	      var_dump($db->lastError());
	      ?>

	      The above example will output something similar to:

	      array(3) {
		["err"]=>
		string(64) "E11000 duplicate key errorindex: foo.foo.$_id_  dup key: { : 1 }"
		["n"]=>
		int(0)
		["ok"]=>
		float(1)
	      }

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