PHP实例：用php+ajax新建流程（请假、进货、出货等）

 <div id="top">
<p>请选择节点人员:</p>
<select id="user">
<?php
require "../DB.class.php";
$db = new DB();
$sql = "select * from users";
$arr = $db->query($sql);
foreach ($arr as $v){
 echo "<option value='{$v[0]}'>{$v[2]}</option>";
}
?>
</select>
<input type="button" value="确定添加"/>
</div> 

<script src="../jquery-1.11.2.min.js"></script> 

<script type="text/javascript">
 //用session 存取选择的值
 $("#add").click(function(){
   var uid = $("#user").val();
   //  alert(uid);
   $.ajax({
    url:"add-cl.php",
    data:{uid:uid},
    type:"POST",
    dataType:"TEXT",
    success:function(data){
     window.location.href="main.php" rel="external nofollow" rel="external nofollow" ;
    }
   });  
 })
</script> 

<?php
 //开启session
 session_start();
 //取值
 $uid=$_POST["uid"];
 //如果session为空,造一个数组,将取到的值添加进去
 if(empty($_SESSION["jiedian"])){
  $arr = array($uid);
  $_SESSION["jiedian"] = $arr;
 }
 //如果不为空,将取到的值追加进去
 else
 {
  $arr = $_SESSION["jiedian"];
  $arr[]=$uid;
  $_SESSION["jiedian"] = $arr;
 }
?> 

<?php
    session_start(); 
    if(empty($_SESSION["jiedian"])){
      echo "尚未选择节点人员!";
    } 

else
    {
     $arr = $_SESSION["jiedian"];
     foreach($arr as $k=>$v)
     {
      $sql = "select name from users where uid='{$v}'";
      $name = $db->strquery($sql);
      echo "<div>{$k}--{$name}--<input type ='button' value='移除' class='yichu' code='{$k}'> <div>";
     }     
    }    
   ?> 

$(".yichu").click(function(){
  var code = $(this).attr("code");
  $.ajax({
    url:"yichu-cl.php",
    data:{code:code},
    type:"POST",
    dataType:"TEXT",
    success:function(data){
     window.location.href="main.php" rel="external nofollow" rel="external nofollow" ;
    }
   });  
 }) 

<?php
session_start();
$code = $_POST["code"];
$arr = $_SESSION["jiedian"];
//从数组中删除code这一项
unset($arr[$code]);
//将索引重新排列
$arr = array_values($arr);
$_SESSION["jiedian"] = $arr;
?> 

<div id="btm">
    请输入流程名称：
   <input type="text" class="name" />
   <input type="button" value="保存" class="baocun" />
   </div> 

$(".baocun").click(function(){
  var name = $(".name").val();
//  alert(name);
  $.ajax({
    url:"baocun-cl.php",
    data:{name:name},
    type:"POST",
    dataType:"TEXT",
    success:function(data){
     alert("保存成功!");
    }
   }); 
 }) 

<?php
session_start();
require "../DB.class.php";
$db = new DB();
//将数据写进liucheng表
$name = $_POST["name"];
$code=time();//用时间戳来生成code
$sql = "insert into liucheng values('{$code}','{$name}')";
$db->query($sql,0);
//将数据写入liucehngjiedian表
$arr = $_SESSION["jiedian"];
foreach($arr as $k=>$v)
{
 $sql = "insert into liuchengjiedian values ('','{$code}','{$v}','{$k}')";
 $db->query($sql,0);
}
?>