How to check if MongoDB error?

Question

How can I check to see if there was an error with MongoDB?

var_dump($mongodb->lastError());

gives me a blank page.

Are you using echo or var_dump? Can we see your full code? — SomeKittens
– SomeKittens, Commented Oct 18, 2012 at 22:49
If you want to learn about the blank page you might find this helpful: stackoverflow.com/questions/12769982/… — hakre
– hakre, Commented Oct 18, 2012 at 22:58

W Kristianto · Accepted Answer · 2012-10-18 23:08:47Z

1

Mongo::lastError — Check if there was an error on the most recent db operation performed

Deprecated

// NOT WORK!!
$mongo = new Mongo();
var_dump($mongo->lastError());

You only see a blank page because you have error reporting turned off in your PHP configuration.

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

You need MongoDB class

// WORK!!
$mongo = new Mongo();
$db    = $mongo->database;
var_dump($db->lastError());

answered Oct 18, 2012 at 23:08

W Kristianto

9,3737 gold badges51 silver badges73 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

ini_set('display_errors', 1); i have message Function Mongo::lastError() is deprecated

$mongo = new Mongo(); $db = $mongo->database; var_dump($mongo->lastError());

$mongo->lastError() --> $db->lastError()

Thank you :) it works array(4) { ["n"]=> int(0) ["connectionId"]=> int(4) ["err"]=> NULL ["ok"]=> float(1) }