Insert current page, id, date into mySQL table - php

Question

In my Joomla 2.5.14 I'm trying to insert the current page_id, user_id and date into a mySQL table (called xmb9d_hist).
This is the code I'm using:
<?php
/* Define $jinput */
$jinput = JFactory::getApplication()->input;
/* Get the current page id */
$page= $jinput->get('id');
/* Get the current user id */
$user =JFactory::getUser();
$usr_id = $user->get('id');
/* Get the current date */
$date =JFactory::getDate();
/* Open a connection */
$link=mysqli_connect('localhost','peter','abc123');
if(!$link){
echo "Não há ligação!";
exit();
};
/* Insert current user id, page id and date in to table xmb9d_hist */
mysqli_query($link, "INSERT INTO `portalge_formacao`.`xmb9d_hist` (`user_id`, `page_id`, `date`) VALUES ($usr_id, $page, $date)");
/* Close connection */
mysqli_close($link);
?>
The first part of the code is working ok (retrieving the values for the 3 variables. However, the data isn't being inserted in the database and no error is produced.
In MySQL table, user_id and page_id are defined as INT(11) and date as date.
Thanks in advance for your help.

Answer 1

You need to stick to Joomla coding standards when using Joomla unless they have not provided a class for whatever you need. Have a read of the documentation before trying something just incase there is information about it.
Try using the following:
<?php
$db = JFactory::getDbo();
$date = JFactory::getDate();
$user = JFactory::getUser();
$jinput = JFactory::getApplication()->input;
$page= $jinput->get('id');
$usr_id = $user->get('id');
$query = $db->getQuery(true);
$columns = array('user_id', 'page_id', 'date');
$values = array($usr_id, $page, $date);
$query
->insert($db->quoteName('#__hist'))
->columns($db->quoteName($columns))
->values(implode(',', $values));
$db->setQuery($query);
?>
Hope this helps

Answer 2

I see a few issues with your insert query. First off, I believe that JFactory::getDate() returns an object, so to get something you can insert into the database you want to do a toFormat() on it. Try changing your line from:
$date =JFactory::getDate();
to this:
$date =JFactory::getDate()->toFormat();
And since the date isn't an integer, you need to escape the string in your insert, so update that line to this:
mysqli_query($link, "INSERT INTO `portalge_formacao`.`xmb9d_hist` (`user_id`, `page_id`, `date`) VALUES ($usr_id, $page, '$date')");

Answer 3

You should use the method toSql() , it's for SQL e.g.
$date = JFactory::getDate()->toSql();
hope this helps