Proudly hosted with Dreamhost
Save $20 when signing up for Dreamhost by using the promo code amnuts20
If you find these scripts useful to you, appreciate the free support, or are just an all round nice person, then why not donate a little dosh to encourage me to continue? Every little helps!
|
Web Page Update Check
This class allows you to check to see if a particular website has been updated recently. It doesn't show what the changes were, just the fact that it's been altered in some way since you last checked the site.
class.wwwcheckup.php
<?php
//
// class.wwwcheckup.php
// version 1.1.0 - 22nd August, 2003
//
// Description
//
// This class allows you to keep track of when websites were last updated.
// This will not tell you what the changes are, but just let you know that
// it has been changed in some way.
//
// Author
//
// Andrew Collington, 2003
// php@amnuts.com, http://php.amnuts.com/
//
// Feedback
//
// http://php.amnuts.com/forums/index.php
// There is message board at the above URL where you can post
// feedback, bug reports, feature requests, etc., for this and
// any of the other scripts located at php.amnuts.com.
//
// DB Schema
//
// Website addresses are stored in a database with the schema:
//
// CREATE TABLE website (
// id int(11) DEFAULT '0' NOT NULL auto_increment,
// website varchar(255) NOT NULL,
// hash varchar(255) NOT NULL,
// lastchecked datetime DEFAULT '0000-00-00 00:00:00' NOT NULL,
// lastupdated datetime DEFAULT '0000-00-00 00:00:00' NOT NULL,
// PRIMARY KEY (id)
// );
//
// This script would be most efficiently used in conjunction with a cron job
// to automatically check the status of the pages, so that all you have to
// do is show the results.
//
class WebsiteCheckup
{
var $user;
var $pass;
var $host;
var $id;
var $db;
var $tbl;
var $autoupdate;
var $results;
function WebsiteCheckup($user='username', $pass='password', $table='websites', $database='demo', $host='localhost')
{
$this->user = $user;
$this->pass = $pass;
$this->host = $host;
$this->db = $database;
$this->tbl = $table;
$this->id = NULL;
$this->autoupdate = TRUE;
$this->id = @mysql_connect($this->host, $this->user, $this->pass) or
die("Unable to connect to mysql server: {$this->host}");
@mysql_select_db($this->db, $this->id) or
die("Unable to select database: {$this->db}");
}
function SetAutoUpdate($status = TRUE)
{
$this->autoupdate = ($status === TRUE ? TRUE : FALSE);
}
//
// Database interaction routines
//
function CheckAll()
{
$sql = "SELECT id,website,hash,UNIX_TIMESTAMP(lastchecked) AS lastchecked,UNIX_TIMESTAMP(lastupdated) AS lastupdated FROM {$this->tbl}";
$result = @mysql_query($sql, $this->id) or die("Unable to perform query: $sql");
while ($row = @mysql_fetch_array($result, MYSQL_ASSOC))
{
$site = array();
set_time_limit(120);
$site = @file($row['website']);
if (empty($site))
{
echo "<p>The website {$row['website']} could not be fetched.</p>\n";
}
else
{
$hash = md5(strip_tags(join('', $site)));
if ($this->autoupdate)
{
if ($hash != $row['hash'])
{
$this->results[] = $row;
$sql = "UPDATE {$this->tbl} SET lastchecked=NOW(),lastupdated=NOW(),hash='{$hash}' WHERE id={$row['id']}";
}
else
{
$sql = "UPDATE {$this->tbl} SET lastchecked=NOW() WHERE id={$row['id']}";
}
@mysql_query($sql, $this->id) or die("Unable to perform query: $sql");
}
else
{
if ($hash != $row['hash'])
{
$this->results[] = $row;
}
}
}
}
@mysql_free_result($result);
}
function GetAll(&$arr)
{
$sql = "SELECT id,website,hash,UNIX_TIMESTAMP(lastchecked) AS lastchecked,UNIX_TIMESTAMP(lastupdated) AS lastupdated FROM {$this->tbl} ORDER BY website";
$result = @mysql_query($sql, $this->id) or die("Unable to perform query: $sql");
while ($row = @mysql_fetch_array($result, MYSQL_ASSOC))
{
$arr[] = $row;
}
@mysql_free_result($result);
}
function AddWebsite($website = '')
{
if ($website == '')
{
return;
}
if (!preg_match('/^http:\/\//i', $website))
{
$website = "http://{$website}";
}
$site = array();
set_time_limit(120);
$site = @file($website);
if (empty($site))
{
return FALSE;
}
else
{
$hash = md5(strip_tags(join("", $site)));
$sql = "INSERT INTO {$this->tbl} (website,hash,lastupdated,lastchecked) VALUES('{$website}','{$hash}',NOW(),NOW())";
if (!@mysql_query($sql,$this->id))
{
die("Unable to perform query: $sql");
}
}
return TRUE;
}
function RemoveWebsite($website = '')
{
if ($website == '')
{
return FALSE;
}
if (!preg_match("/^http:\/\//i", $website))
{
$website = "http://{$website}";
}
if (@mysql_query("DELETE FROM {$this->tbl} WHERE website='{$website}'", $this->id))
{
return TRUE;
}
else
{
die("Unable to perform query: $sql");
}
}
//
// Display Routines
//
function DisplayUpdates()
{
$this->CheckAll();
$this->DisplayTable($this->results);
}
function DisplayAll()
{
$this->GetAll($foo);
$this->DisplayTable($foo, 1);
}
function DisplayTable($array, $colour = 0)
{
if (empty($array))
{
echo "<p>There are no websites or results available.</p>\n";
}
else
{
echo '<table border="1" cellpadding="3" cellspacing="0">', "\n";
echo '<tr><td>website</td><td>last checked</td><td>last updated</td></tr>', "\n";
for ($r=0; $r<count($array); $r++)
{
if ($colour && ($array[$r]['lastchecked'] == $array[$r]['lastupdated']))
{
$bg = " bgcolor=\"#CCCCCC\"";
}
else
{
$bg = " bgcolor=\"#FFFFFF\"";
}
echo "<tr><td{$bg}><a href=\"{$array[$r]['website']}\" target=\"_blank\">{$array[$r]['website']}</a></td>";
echo "<td{$bg}>", $this->FuzzyTime($array[$r]['lastchecked']), '</td>';
echo "<td{$bg}>", $this->FuzzyTime($array[$r]['lastupdated']), "</td></tr>\n";
}
echo "</table>\n";
}
}
function FuzzyTime($time)
{
// sod = start of day :)
$sod = mktime(0, 0, 0, date('m',$time), date('d', $time), date('Y', $time));
$sod_now = mktime(0, 0, 0, date('m'), date('d'), date('Y'));
if ($sod_now == $sod) return "today at " . date("g:ia", $time); // check 'today'
if (($sod_now-$sod) <= 86400) return "yesterday at " . date("g:ia", $time); // check 'yesterday'
if (($sod_now-$sod) <= 432000) return date("l \a\\t g:ia", $time); // give a day name if within the last 5 days
if (date("Y",$now) == date("Y", $time)) return date("M j \a\\t g:ia", $time); // miss off the year if it's this year
return date("M j, Y \a\\t g:ia", $time); // return the date as normal
}
}
?>
6.01kb in size
last modified May 6, 2006 at 9:55pm
10304 views, 9476 downloads
schema.wwwcheckup.sql
439b in size
last modified May 6, 2006 at 9:55pm
7803 downloads
test.wwwcheckup.php
1.67kb in size
last modified May 6, 2006 at 9:55pm
8117 views, 7805 downloads
|
