<?php
function format($size) {
	$unit = 'B';
	$units = array(
		'GB' => 1024 * 1024 * 1024
		, 'MB' => 1024 * 1024
		, 'KB' => 1024
	);

	foreach($units as $currentUnit => $value) {
		if ($size > 2 * $value) {
			$size /= $value;
			$unit = $currentUnit;
			break;
		}
	}

	return number_format($size, 1) . ' ' . $unit;
}

$settings = array(
	'host' => 'localhost'
	, 'user' => 'root'
	, 'password' => 'password'
);

$databases = array();

mysql_connect($settings['host'], $settings['user'], $settings['password']);

$result = mysql_query('show databases');
while($row = mysql_fetch_array($result)) {
	$databases[] = $row['Database'];
}

foreach($databases as $database) {
	$sizes[$database] = 0;

	mysql_select_db($database);
	$result = mysql_query('show table status');
	while($row = mysql_fetch_array($result)) {
		$sizes[$database] += $row['Data_length'] + $row['Index_length'];
	}
}

mysql_close();

foreach($sizes as $database => $size) {
	echo $database . ' = ' . format($size) . '<br />';
}

echo '<br />TOTAL: ' . format(array_sum($sizes));

?>

When I ran it, I saw all my DBs where taking a total of 10.8 GB, much less than the 86 GB occupied in the partition. So it hit me, it has to be the binary logs, a set of files that store log events (more about them here). Indeed, if you would list the contents of /var/lib/mysql I would find a ton of .bin files, a lot of them as old as from 2007. Therefore, I realized I had to flush the logs.

In order to flush the binary logs, I logged in to the MySQL console as an administrator, and issued (if you are on a server with replication, you want to purge the binary logs instead):

FLUSH LOGS;
RESET MASTER;

After doing so, the MySQL partition is now taking a total of 12 GB. Much better!

No related posts.

The class uses nuSOAP for interacting with the SOAP server. You will need to download nuSOAP and copy it inside a folter named nusoap, located in the same location as this class’ file.

The source code for the class is the following (save it as MSNWebSearch.class.php):

<?php

define ('NUSOAP_PATH', dirname(__FILE__) . '/nusoap');
define ('MSN_API_KEY', 'Insert here your default MSN API key');
define ('MSN_API_ENDPOINT', 'http://soap.search.msn.com/webservices.asmx');
define ('MSN_API_NAMESPACE', 'http://schemas.microsoft.com/MSNSearch/2005/09/fex');

require_once(NUSOAP_PATH . '/nusoap.php');

class MSNWebSearch
{
	var $apiKey;
	var $filterAdult;
	var $languages;
	var $page;
	var $pages;
	var $query;
	var $records;
	var $recordsPerPage;

	function &MSNWebSearch($apiKey = null)
	{
		$this->apiKey = isset($apiKey) ? $apiKey : MSN_API_KEY;
		$this->filterAdult = false;
		$this->languages = 'en-US';
		$this->recordsPerPage = 10;
		$this->page = 1;
	}

	function getApiKey()
	{
		return $this->apiKey;
	}

	function setApiKey($apiKey)
	{
		$this->apiKey = $apiKey;
	}

	function getErrorMessage()
	{
		return $this->errorMessage;
	}

	function getFilterAdult()
	{
		return $this->filterAdult;
	}

	function setFilterAdult($filterAdult)
	{
		$this->filterAdult = $filterAdult;
	}

	function getLanguages()
	{
		return $this->languages;
	}

	function setLanguages($languages)
	{
		$this->languages = $languages;
	}

	function getPage()
	{
		return $this->page;
	}

	function setPage($page)
	{
		if ($page < 1)
		{
			$page = 1;
		}

		$this->page = $page;
	}

	function getPages()
	{
		return $this->pages;
	}

	function getQuery()
	{
		return $this->query;
	}

	function setQuery($query)
	{
		$this->query = $query;
	}

	function getRecords()
	{
		return $this->records;
	}

	function getRecordsPerPage()
	{
		return $this->recordsPerPage;
	}

	function setRecordsPerPage($recordsPerPage)
	{
		$this->recordsPerPage = is_int($recordsPerPage) && $recordsPerPage > 0 ? $recordsPerPage : 10;
	}

	function get()
	{
		$startIndex = ($this->page - 1) * $this->recordsPerPage;
		$elementsCount = $this->recordsPerPage;

		$parameters = array(
			'AppID' => $this->apiKey,
			'Query' => $this->query,
			'CultureInfo' => $this->languages,
			'SafeSearch' => ($this->filterAdult ? 'Strict' : 'Off'),
			'Requests' => array (
				'SourceRequest' => array (
					'Source' => 'Web',
					'Offset' => $startIndex,
					'Count' => $elementsCount,
					'ResultFields' => 'All'
				)
			)
		);

		if (isset($this->country))
		{
			$parameters['Location'] = $this->country;
		}

		$soapClient =& new soapclient(MSN_API_ENDPOINT);

		$soapResult = $soapClient->call('Search', array ('Request' => $parameters), MSN_API_NAMESPACE );

		if ($soapClient->getError())
		{
			$this->errorMessage = $soapClient->getError();

			return false;
		}

		$this->records = $soapResult['Responses']['SourceResponse']['Total'];
		$this->pages = ceil($this->records / $this->recordsPerPage);

		if (is_array($soapResult['Responses']['SourceResponse']['Results']))
		{
			$result = array();

			foreach ($soapResult['Responses']['SourceResponse']['Results'] as $item)
			{
				$result[] = array (
					'url' => $item['Url'],
					'urlDisplay' => $item['DisplayUrl'],
					'urlCache' => $item['CacheUrl'],
					'title' => isset($item['Title']) && trim($item['Title']) != '' ? $item['Title'] : $item['DisplayUrl'],
					'snippet' => $item['Description']
				);
			}
		}
		else
		{
			$result = array();
		}

		return $result;
	}
}
?>

The usage of this class is quite simple. Take a look at the following index.php file to see an example. You can see it working here. Please note that where it says 'My MSN API Key', you need to insert your own MSN API Key. If you don’t have one, get one now.

<?php
require_once(dirname(__FILE__) . '/MSNWebSearch.class.php');

if (isset($_GET) && isset($_GET['query']) && trim($_GET['query']) != '')
{
	$currentPage = 1;

	if (isset($_GET['page']))
	{
		$currentPage = $_GET['page'];
	}

	$msnSearch =& new MSNWebSearch();

	$msnSearch->setApiKey('My MSN API Key');
	$msnSearch->setQuery($_GET['query']);
	$msnSearch->setPage($currentPage);

	$result =& $msnSearch->get();

	if ($result !== false)
	{
		if ($msnSearch->getPages() > 1)
		{
			$navigation = array();

			$navigation['pages'] = $msnSearch->getPages();

			if ($msnSearch->getPage() > 1)
			{
				$navigation['back'] = $PHP_SELF . '?page=' . ($msnSearch->getPage() - 1) . '&query=' . urlencode($msnSearch->getQuery());
			}

			if ($msnSearch->getPage() < $msnSearch->getPages())
			{
				$navigation['next'] = $PHP_SELF . '?page=' . ($msnSearch->getPage() + 1) . '&query=' . urlencode($msnSearch->getQuery());
			}
		}
	}
}
?>
<html>
	<head>
		<titlevMSN Web Search</title>
	</head>
	<body>
		<center><p>
			<form action="<?php echo $PHP_SELF; ?>" method="GET">
				Search:
				<input type="text" name="query" size="70" value="<?php echo isset($_GET['query']) ? $_GET['query'] : ''; ?>" />
				<input type="submit" value="Search" />
				<?php
				if (isset($msnSearch) && $result !== false)
				{
				?>
				<br />
				<b><?php echo $msnSearch->getRecords(); ?></b> records matched your query.
				<?php
				}
				?>
			</form>
		</p></center>
		<?php
		if (isset($msnSearch) && $result === false)
		{
			?>
			There was an error with your search. Error message: <b><?php echo $msnSearch->getErrorMessage(); ?></b>.
			<?php
		}
		else if (isset($msnSearch))
		{
			if (isset($navigation))
			{
			?>
			<center><p>
				Pages: <b><?php echo $msnSearch->getPages(); ?></b>
				<?php
				if (isset($navigation['back']))
				{
				?>
				<a href="<?php echo $navigation['back']; ?>">Previous</a>
				<?php
				}

				if (isset($navigation['back']) && isset($navigation['next']))
				{
				?>
				|
				<?php
				}

				if (isset($navigation['next']))
				{
				?>
				<a href="<?php echo $navigation['next']; ?>">Next</a>
				<?php
				}
				?>
			</p></center>
			<?php
			}
			?>
			<ul>
			<?php
			foreach ($result as $item)
			{
			?>
			<li>
				<a href="<?php echo $item['url']; ?>"><?php echo $item['title']; ?></a>: <?php echo $item['snippet']; ?>
				<br />
				<font color="#008000"><?php echo $item['urlDisplay']; ?></font> - <a href="<?php echo $item['urlCache']; ?>">Cache</a>
			</li>
			<?php
			}
			?>
			</ul>
			<?php
		}
		?>
	</body>
</html>

Hope this helps anyone.

UPDATE [Aug 20, 2006]: After receiving some emails saying that the class didn’t work (which in fact does), I decided to publish a ZIP file that contains a working MSN Search Based Page. It includes nuSOAP as of July 19, 2006. First, download the ZIP file. Then, uncompress to a new directory on your webserver and EDIT the file index.php, looking for line 3. Insert your MSN API KEY there. After specifying your API key, you should be good to go for testing.

Related posts:

1. Get a taste of AJAX with PHP

For Gmail (Google Mail) or GMaps (Google Maps) users, you have already experienced the power of Ajax. Notice how when you switch from page to page in GMail the browser page does not reload? That’s the power of Ajax.

In this post, I’ll give you an introduction to Ajax using a yet in beta stage, but very powerful open source PHP library called XAJAX. I’ll get right down to the coding (more information about this library can be obtained from its sourceforge site.)

As an example, I’ll develop the classic Country / State combo box combination. Normally, if we wanted the State combo to be updated by the current selected country, we would make one of two choices:

• Use Javascript by sending all countries and their respective provinces to the client browser, and update State combobox choosing those states that belong to the selected country.
• Reload the page when a different country has been selected, including only that country’s states in the State combo box.

With Ajax, we’ll do none of those. We’ll have the list of states per country on a server-side PHP script. When the country selection changes, we’ll use Xajax to update the list of available states based on the country selection. To simplify, I’ll do all this on the same PHP file.

We start by including the xanax library, and declaring a PHP function that will be called via Ajax when the country selection changes.

require_once(dirname(__FILE__) . '/xajax.inc.php');

function setCountry($countryCode)
{
        $provinces = array();

        switch($countryCode)
        {
                case 'AR':

                        $provinces['BA'] = 'Buenos Aires';
                        $provinces['CO'] = 'Cordoba';
                        $provinces['SL'] = 'Salta';
                        $provinces['SF'] = 'Santa Fe';

                        break;

                case 'US':

                        $provinces['CA'] = 'California';
                        $provinces['WA'] = 'Washington';

                        break;
        }

        $objResponse =& new xajaxResponse();

        if (count($provinces) > 0)
        {
                $objResponse->addScript("document.getElementById('province').disabled = false;");
                $objResponse->addScript("document.getElementById('province').options.length = 0;");

                foreach ($provinces as $id => $province)
                {
                        $objResponse->addScript("addOption('province','" . $province . "','" . $id . "');");
                }
        }
        else
        {
                $objResponse->addScript("document.getElementById('province').options.length = 0;");
                $objResponse->addScript("addOption('province','-- Select a Country first -','');");
                $objResponse->addScript("document.getElementById('province').disabled = true;");
        }

        return $objResponse->getXML();
}

The first few lines are quite easy to follow. The first interesting thing that we see here is when we start by creating the Xajax response ($objResponse =& new xajaxResponse();) After that, if there are states to be inserted, we enable the state control, reset the state combo box (by setting its option length to 0), and for each state we call a client side javascript function called addOption() that will insert the specified option in the combo box. If no states are to be inserted, then we empty the combo box, inserting only a dummy option, and disable the element.

Now, let’s see the next few server-side lines of code:

$xajax =& new xajax();

$xajax->registerFunction("setCountry");

$xajax->processRequests();

Here, we instantiate the main xajax handler, registering the function we’ve just created, and telling xajax to process any request. From here on, all the remaining code is client side (HTML). What we need to pay special attention to is the client side javascript function we already mentioned, which is included here, and the insertion of xajax generated javascript code, all of this is done within the header tag of the HTML document:

<?php
$xajax->printJavascript();
?>
<script type="text/javascript">
<!--
function addOption(selectId, txt, val)
{
        var objOption = new Option(txt,val);

        document.getElementById(selectId).options.add(objOption);
}
// -->
</script>

Finally, the code that dispatches xajax when the country selection changes:

<select name="country" id="country" onchange="xajax_setCountry(document.getElementById('country').value);">
<option value="">-- Select a Country --</option>
<option value="AR">Argentina</option>
<option value="US">United States</option>
</select>

You can see the code working here, and download the source file here.

Related posts:

1. MSN Search API PHP Client