$zip = 98052;
$weather_page = file_get_contents('http://www.demo.com/z.php?inputstring=' . $zip);
$page = strstr($weather_page,'Detailed Forecast');
$table_start = strpos($page, '
$table_end = strpos($page, '') + 8;
$forecast = substr($page, $table_start, $table_end - $table_start);
print $forecast;
file_put_contents("weather-$zip.txt", $forecast);