<form id="fm">
 <table>
 <tr>
  <td>姓名</td>
  <td>
  <input type="text" name="name" />
  </td>
 </tr>

 <tr>
  <td>年龄</td>
  <td>
  <input type="text" name="age" />
  </td>
 </tr>

 <tr>
  <td>密码</td>
  <td>
  <input type="password" name="password" />
  </td>
 </tr>

 <tr>
  <td>性别</td>
  <td>
  <input type="radio" name="sex" value="male" />男
  <input type="radio" name="sex" value="female" />女
  </td>
 </tr>

 <tr>
  <td>地区</td>
  <td>
  <select name="area">
   <option value="heping">和平区</option>
   <option value="nankai">南开区</option>
   <option value="xiqing">西青区</option>
   <option value="hexi">河西区</option>
  </select>
  </td>
 </tr>

 <tr>
  <td>爱好</td>
  <td>
  <input type="checkbox" name="hobby[]" value="movie" />电影
  <input type="checkbox" name="hobby[]" value="music" />音乐
  <input type="checkbox" name="hobby[]" value="basketball" />篮球
  </td>
 </tr>

 <tr>
  <td>个人介绍</td>
  <td>
  <textarea name="intro" ></textarea>
  </td>
 </tr>

 <tr>
  <td></td>
  <td>
  <input type="button" value="提交" id="submit" />
  </td>
 </tr>
 </table>
</form>

$(function(){
 $('#submit').click(function(){
 //选取表单
 var form = $('#fm');
 //获取表单数据
 var data = getFormData(form);
 //发送AJAX请求
 $.post('test.php',data,function(data){
  console.log('ok');
 });
 });
});

function getFormData(form){
 var data = form.serialize();
 data = decodeURI(data);
 var arr = data.split('&');
 var item,key,value,newData={};
 for(var i=0;i<arr.length;i++){
 item = arr[i].split('=');
 key = item[0];
 value = item[1];
 if(key.indexOf('[]')!=-1){
  key = key.replace('[]','');
  if(!newData[key]){
  newData[key] = [];
  }
  newData[key].push(value);
 }else{
  newData[key] = value;
 }
 }
 return newData;
}

Array
(
 [name] => 3241324
 [age] => m_admin
 [password] => 123
 [sex] => male
 [area] => heping
 [hobby] => Array
 (
  [0] => movie
  [1] => music
 )
 [intro] => 321432423
)