上一篇博文是新建流程，此篇是流程管理的后续内容：发起流程和审核流程
一. 发起流程和审核流程需要用到的三张表
二.写代码
1. 用ajax做了一个登录页面，用session获取用户名：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script src="../jquery-3.2.0.min.js"></script>
<title>无标题文档</title>
</head>
<body>
<h1>登录页面</h1>
<form action="dlchuli.php" method="post">
<div>用户名:<input type="text" id="uid" /></div>
<div>密码:<input type="password" id="pwd" /></div>
<input type="button" value="登录" id="btn" />
</form>
</body>
<script type="text/javascript"> //！！！用ajax之前一定先引用jqery
$("#btn").click(function(){ //对登录按钮添加单击事件
var uid=$("#uid").val(); //获取用户的值
var pwd=$("#pwd").val(); //获取密码的值
$.ajax({
url:"dlchuli.php", //编写登录的处理页面
data:{uid:uid,pwd:pwd}, //将用户和密码传到处理页面
type:"POST",
dataType:"TEXT",
success: function(data)
{
if(data.trim()=="OK")
{
window.location.href="main.php"; //处理页面执行成功后，跳转到主页面
}
else
{
alert("用户名或密码输入错误"); //否则就提示错误
}
}
})
})
</script>
</html>
2.登录界面的处理页面 dlchuli.php
<?php
session_start();
require "../DBDA.class.php";
$db = new DBDA(); //造新对象
//传过来的值
$uid = $_POST["uid"];
$pwd = $_POST["pwd"];
//查询语句
$sql = " select pwd from users where uid='{$uid}' and pwd='{$pwd}'";
//执行语句
$attr = $db->query($sql,1);
if(!empty($pwd) && !empty($attr) && $attr[0][0]==$pwd)
{
$_SESSION["uid"] =$uid; //session接收用户值
echo "OK";
}
else
{
echo "NO";
}
3.主页面 main.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <h1>主页面</h1> <div><a href="faqi.php">发起流程</a> <a href="shenhe.php">审核流程</a></div> </body> </html>
4.发起流程页面 faqi.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<h1>发起流程</h1>
<form action="fqchuli.php" method="post">
<div>请选择发起的流程:
<select name="lc">
<?php
require "../DBDA.class.php";
$db = new DBDA();
$sql = "select * from liucheng";
$arr = $db->query($sql,1);
foreach($arr as $v)
{
echo "<option value='{$v[0]}'>{$v[1]}</option>";
}
?>
</select>
</div>
<br />
<div>
请输入发起的内容：<textarea name="nr"></textarea>
</div>
<br />
<input type="submit" value="发起" />
</form>
</body>
</html>
5.发起流程处理页面 fqchuli.php
<?php
session_start();
require "../DBDA.class.php";
$db = new DBDA();
$code =$_POST["lc"];
$nr =$_POST["nr"];
$uid = $_SESSION["uid"];
$time =date("Y-m-d H:i:s");
$sql = "insert into userflow values('','{$code}','{$uid}','{$nr}',0,'{$time}',0)";
$db->query($sql);
header("location:main.php");
点击“发起”，数据库中就会添加此条数据
6.流程审核页面 shenhe.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<h1>流程审核页面</h1>
<?php
session_start();
$uid = $_SESSION["uid"];
require "../DBDA.class.php";
$db = new DBDA();
$sql = "select * from userflow a where code in(select code from flowpath where uids='{$uid}')
and towhere >=(select orders from flowpath b where b.code=a.code and b.uids='{$uid}' )" ;
$arr = $db->query($sql,1);
echo "<table width='100%' border='1' cellpadding='0' cellspacing='0'>
<tr>
<td>流程代号</td>
<td>发起者</td>
<td>发起内容</td>
<td>是否结束</td>
<td>发起时间</td>
<td>操作</td>
</tr>
";
foreach($arr as $v)
{
$zt = "<a href='tongguo.php?code={$v[0]}'>通过</a>";
$sql = "select orders from flowpath where code='{$v[1]}' and uids='{$uid}'";
$wz = $db->strquery($sql);
if($v[6]>$wz)
{
$zt = "<span style='color:green'>已通过</span>";
}
echo "<tr>
<td>{$v[1]}</td>
<td>{$v[2]}</td>
<td>{$v[3]}</td>
<td>{$v[4]}</td>
<td>{$v[5]}</td>
<td>{$zt}</td>
</tr>";
}
echo "</table>";
?>
</body>
</html>
7.写审核处理页面 tongguo.php（*）
<?php
$ids = $_GET["code"];
require "../DBDA.class.php";
$db = new DBDA();
//让流程往下走，每审核通过一个，对应towhere字段要加1
$sql = "update userflow set towhere = towhere+1 where ids='{$ids}'";
$db->query($sql);
//判断流程是否结束
$sql = "select max(orders) from flowpath where code=( select code from userflow where ids='{$ids}')";
$maxsx = $db->strquery($sql);
$sql = "select towhere from userflow where ids='{$ids}'";
$towhere = $db->strquery($sql);
if($towhere>$maxsx)
{
//如果结束了，修改状态 ;审核到最后时，对应的isok字段要变为1（此处1表示结束，0表示未结束）
$sql = "update userflow set isok = 1 where ids='{$ids}'";
$db->query($sql);
}
header("location:shenhe.php");
当写好这一步时，点击“通过”则会变成“已通过”；
zhangsan是第一个审核人，从zhangsan开始依次审核
niuniu是最后一个审核人，结束显示1
END