kakapo's nest

<form name="seachfrm" method="post">
<ul>
    <li ><input type="checkbox" checked="" value="150" name="selstores[]" > 世茂滨江店</li>
      <li><input type="checkbox" checked="" value="151" name="selstores[]" >众鑫店</li>
    </ul>
</form>

var len = document.forms['seachfrm'].elements['selstores[]'].length;
  var c=0;
  for(var i=0;i<len;i++){
    if(document.forms['seachfrm'].elements['selstores[]'][i].checked){
      c++;
    }
  }

<?php
//输出array();
print_r($_POST['selstores']);
?>