$_POST表單提交後本來就會有勾選的checkbox值，如果要jQuery的話：
<html><head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/>
<title>GetCheckboxValues</title>
<script?language="javascript"?type="text/javascript"?src="../js/jquery-1.9.1.js"></script>
</head>
<body>
<input?type="checkbox"?name="ids[]"?value="abc"?/>
<input?type="checkbox"?name="ids[]"?value="def"?/>
<input?type="checkbox"?name="ids[]"?value="ghi"?/>
<input?id="btn"?type="button"?name="btn"?value="submit"?/>
<script>
jQuery(function(){
var?box?=?{
getBoxVal:function(){
array?=?new?Array();
$("input[name^='ids']").each(function(i){
if($(this).prop('checked')?==?true){
array?.push($(this).val());
}
});alert(array);
return?array;
},//end?getBoxVal
submitForm:function(){
arr?=?box.getBoxVal();
$("#btn").click(function(){
alert("arr:"+arr);
});
}//end?submitForm
}//end?box
box.submitForm();
});
</script>
</body>
</html>