$ result = mysql_query（$ query）或者死掉

Question

我是php的新手，现在如果我输入$ h2＆lt; $ H1。如果有人可以帮我找到我的错误在哪里，我会添加什么？我很高兴知道......

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  <script>
  $( function() {
    $("#h1").datepicker({dateFormat: 'yy-mm-dd'});
    $("#h2").datepicker({dateFormat: 'yy-mm-dd'});
  } );
  </script>

＆＃13;

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if ($tag == 2 and $v1 != '') {

$startu=mktime($h1);
$endu=mktime($h2);

$starts=mktime($start);
$ends=mktime($end);

$diffs=$endu-$startu;
$diff=$end-$start;

if ($diffs > 0 || 1==1) {

  $query="update settings set cinemashow='$s1' where id=1";
  $result=mysql_query($query) or die ('Failed to update');

  $query="update settings set start='$h1' where id=1";
  $result=mysql_query($query) or die ('Failed to update');

  $query="update settings set end='$h2' where id=1";
  $result=mysql_query($query) or die ('Failed to update');

  $tag=1;
  } 

if ($diff < 0){
print "<td valign=middle align=center>
        <a href=setting.php? onclick=\"return confirm('Failed to update. Please set date again?')\"></font></a>
        </td></tr>";
}
}