php页面如何增加下载软件功能

php

<?php
$array = parse_ini_file("sample.ini");
?>

<a id="btnDownloadFull" class="bluesoftbtn center mt30" >立即下载</a>

<script type="text/javascript">
var t = '<?php echo $array["SDTURL"]?>';
$('#btnDownload').attr("href",t);
var bt = '<?php echo $array["SDTFULLURL"]?>';
$('#btnDownloadFull').attr("href",bt);
</script>

文件sample.ini

[sectionA]
SDTURL = 'http://www.shangdaotong.com/download/newsdtsetup1.3.7.rar?version=1.3.7'
SDTFULLURL = 'http://www.shangdaotong.com/download/newsdtsetupfull1.3.7.rar?version=1.3.7'
GJBURL = 'http://www.coozone.cn/download/coozone1.0.2.rar'