mongodb php findone（）由ID

Question

This code will not find a record based on an ID search

<?php

$userid = $_GET['id'];

$theObjId = new MongoId($userid); 

$connection = new Mongo('localhost');

$db = $connection->test->items; 

$item = $db->findOne(array('_id' => $theObjId));

echo 'Item: ' . $item . '<br>';

echo 'UserID: ' . $userid . '<br>';

echo 'TheObjID: ' . $theObjId;

$connection->close(); 

?>

$userid is supplied by a form in another .php file

This is the output ....

$item: Array

 $userid: 4e0dfc8e7bfb8bac12000000

 $theObjId: 4e0dfc8e7bfb8bac12000000

the output proves my variables contain the ID

Answer 1

$item is an array. so print $item as below..

echo '<pre>';
print_r($item);
echo '</pre>';