Question

I try to delete document in mongodb using php, I it fails and I get a waring:

Warning: MongoCollection::remove() expects parameter 2 to be boolean, array given

$mongo = new Mongo();
$db = $mongo->test; 
$collection = $db->subscribers;
$collection->remove(array( 'LISTID' => 49));

Could you please tell me what causes an error?
I phpinfo() shows:

mongo
MongoDB Support enabled
Version     1.0.4+

Directive   Local Value Master Value
mongo.allow_persistent  On  On
mongo.auto_reconnect    On  On
mongo.chunk_size    262144  262144
mongo.cmd   $   $
mongo.default_host  localhost   localhost
mongo.default_port  27017   27017
mongo.utf8  1   1

It’s strange, the documentation say the function looks like:

public mixed MongoCollection::remove ( array $criteria [, array $options = array() ] )

Answer 1

You appear to be using a very old version. From the manual

1.0.5 Changed second parameter to an array of options. Pre-1.0.5, the second parameter was a boolean indicating the “justOne” option and there was no safe option.

Either upgrade or change your code to

$collection->remove(array('LISTID' => 49), false);