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<?
 include 'adv_wdt.php';
 $wdt = new adv_wdt;
 $url = "http://google.com/";        // set desired URL to tracking
 
 // print_R ( $wdt-> curl ($url));        // just return page content
 // echo "<li> Page length is:".$wdt->curl[length]." , and MD5 checksum: ".$wdt->curl[checksum]."<br>";
 
 $wdt->sql_connect ('localhost','username','password','dbname','adv_wdt');         // connect to temporary SQL table, need create first one
 // $wdt -> sql_conect ('host','username','password','database','table');
 
 $wdt->sql_delURL($url);    // delete URL from table if any
 $wdt->sql_addURL($url);    // add URL to our table
 echo "<li> $url is added,  current length is ".$wdt->curl[length]."<br>";
 
 if ($wdt->sql_diffURL($url) == true ) {        // check if webpage has changed since last add URL, only active records are checking !
 echo "<li> $url has changed new length is ".$wdt->curl[length]."<br>";
 // $wdt->sql_deactivateURL($url);    // instead of delete you can only deactivate URL
 // $wdt->sql_activateURL($url);        // active URL previously deactivated
 $wdt->sql_delURL($url);    // delete URL from table
 }    // diffURL
 
 
 
 
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