Cannot use object of type MongoCursor as array

Question

I have this error when I try to use my php file

Fatal error: Cannot use object of type MongoCursor as array in

Part of my code :

<?php
try {
           $connection = new MongoClient();
           $database   = $connection->selectDB('test');
           $collection = $database->selectCollection('articles');
         } Catch(MongoException $e) {
           die("Failed to connect to database ".$e->getMessage());
}
         $cursor = $collection->find();

       ?>

<?php session_start();

?>

<html>

<p> test1 </p>

<p> test </p>



 <h3> Comment the photo </h3>

       <?php foreach($cursor['comments'] as $comment):

I think error is due to : - <?php foreach($cursor['comments'] as $comment): or $cursor = $collection->find();

J.C. Gras · Accepted Answer · 2017-03-01 20:45:34Z

2

Convert $cursor to Array:

$elements = $cursor->toArray();

answered Mar 1, 2017 at 20:45

J.C. Gras

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Comments

Nirav Prajapati · Accepted Answer · 2015-04-13 08:02:50Z

1

try this one it convert your mango cursor object to array($data). 
then you can access data you want.


$data = array();
while($cursor->hasNext())
            {
                $cursor->next();
                $temp = array();
                $temp = $cursor->current();
                array_push($data, $temp);
            }

var_dump($data);

answered Apr 13, 2015 at 8:02

Nirav Prajapati

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3 Comments

Nirav Prajapati Over a year ago

it converts your mongo cursor output from find query to array. then you can access data in foreach.

am9511 Over a year ago

I still have no comment that appears on the page but comments are in the database

Čamo Over a year ago

hasNext() is not a function now.

Kamran · Accepted Answer · 2015-04-12 11:14:31Z

0

Remove $cursor['comments'] and do a loop like this:

<?php
    foreach ($cursor as $comment) {
       ?>
     <p> <?php echo $comment['name']; ?>  </p>
<?php   
 }
 ?>

edited Apr 12, 2015 at 11:14

answered Apr 12, 2015 at 10:56

Kamran

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6 Comments

Kamran Over a year ago

you are using $comment outside foreach loop ?

am9511 Over a year ago

there is no comment appears on the page

Kamran Over a year ago

null value is stored in article. Go to your mongodb console and edit your document.

am9511 Over a year ago

I am starting with mongodb , what I should write on console ?

am9511 Over a year ago

after update { "_id" : ObjectId("552a56fd0faaf2bd03b7acda"), "text" : "after update", "comment_name" : "Anis", "comment_email" : "[email protected]" }

|

Mariusz Szpiler · Accepted Answer · 2016-01-11 13:35:10Z

-1

Command:

$cursor = $collection->find();

gives you an array ($cursor = $collection->findOne() - gives you one element).

If you want to loop over comments then you have to use:

foreach($cursor as $oneElement) {
    foreach($oneElement['comments'] as $comment) {
        //some code
    } 
}

answered Jan 11, 2016 at 13:35

Mariusz Szpiler

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1 Comment

ibrahimab Over a year ago

#find is the one that returns a cursor, #findOne returns an array.

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