<?php
date_default_timezone_set('Australia/Melbourne');
 
function format_bytes($size) {
    $units = array(' B', ' KB', ' MB', ' GB', ' TB');
    for ($i = 0; $size >= 1024 && $i < 4; $i++) $size /= 1024;
    return round($size, 2).$units[$i];
}
 
$days = 4;
if (isset($_REQUEST['days'])) $days = $_REQUEST['days'];
$startDate = strtotime("18-Nov-2007");
if (isset($_REQUEST['startDate'])) $startDate = $_REQUEST['startDate'];
function getFile($startDate, $days, $minVal, $maxVal) {
        $endDate = strtotime(date("Y-m-d", $startDate)." +".$days." days");
$file = date("dMY",$startDate).'to'.date("dMY",$endDate).'val'.$minVal.'to'.$maxVal.'.xls';
echo "Fetching $file ($days days) ($minVal < value < $maxVal )... ";
$url = "https://www.tenders.gov.au/?event=public.advancedsearch.CNSONRedirect&type=cnEvent&atmType=archived%2Cclosed%2Cpublished%2Cproposed&agencyUUID=&agencyStatus=-1&portfolioUUID=&keyword=&KeywordTypeSearch=AllWord&CNID=&dateType=Publish+Date&dateStart=".date("d-M-Y",$startDate)."&dateEnd=".date("d-M-Y",$endDate)."&supplierName=&supplierABN=&valueFrom=".$minVal."&valueTo=".$maxVal."&ATMID=&AgencyRefId=&consultancy=&download=Download+results";
echo "<!-- $url -->";
$current = file_get_contents($url);
if (strpos($current,"Your search returned more than 1000 results.") === false) {
        file_put_contents($file, $current);
        echo "$file saved<br>";
        echo format_bytes(filesize($file))."<br>";
        echo '<a href="?startDate='.$endDate.'&days='.$days.'">Load next '.($days).' days </a><br>';
                echo '<a href="?startDate='.$endDate.'&days='.($days*2).'">Load next '.($days*2).' days </a><br>';
        echo '<a href="?startDate='.$endDate.'&days='.$days.'&split=yes">Load next '.($days).' days with split</a><br>';
        flush();
        return true;
} else  {
        echo "<font color=red>Too many records!</font><br>";
        echo '<a href="?startDate='.$startDate.'&days='.floor($days/2).'">Load '.($days/2).' days instead?</a><br>';
                echo '<a href="?startDate='.$startDate.'&days='.$days.'&split=yes">Split instead?</a><br>';
        flush();
        return false;
}
}
if (isset($_REQUEST['split'])) {
        getFile($startDate, $days, 0, 16000);
        getFile($startDate, $days, 16000, 20000);
getFile($startDate, $days, 20000, 30000);
getFile($startDate, $days, 30000, 40000);
 getFile($startDate, $days, 40000, 80000);
 getFile($startDate, $days, 80000, 300000);
 getFile($startDate, $days, 300000, 999999999);
} else {
        getFile($startDate, $days, "" , "");
}
?>