PHP实现流程管理功能

核心逻辑：流程管理，在各种系统中扮演很重要的地位，可以把设定好的流程放入系统中，规定好几个节点，只要所有节点都通过，就可以通过。

建立四张数据库表：

1.我们首先做一个新建流程页面 flow.php，先把节点做好

<!DOCTYPE html>

<html>

    <head>

        <meta charset="UTF-8">

        <title></title>

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

    </head>

    <body>

        <h2>管理员新建流程</h2>

        <div>请选择人员：

            <select id="users" name="users">

            <?php

                session_start();

                require_once "./DBDA.class.php";

                $db = new DBDA();

                $sql = "select * from users";

                $arr = $db->query($sql,0);

                foreach($arr as $v){

                    echo "<option value='{$v[0]}'>{$v[2]}</option>";

                }

            ?>

            </select>

            <input type="button" value="添加" id="add" />

        </div>

        <br />

        <div>

            <?php

            if(empty($_SESSION["jd"])){

                echo "还未添加节点人员!";

            }else{

                $arr = $_SESSION["jd"];//数组形式存在

                foreach($arr as $k=>$v){//遍历索引(顺序)和名称

                    $sql = "select name from users where uid='{$v}'";

                    $name = $db->StrQuery($sql,0);//查一个(一维数组)

                    echo "<div>{$k}--{$name}--<input type='button' value='删除' class='del' code='{$k}' /></div>";

                                                                                            //根据索引删除相应节点人员

                }

            }

            ?>

        </div>

        <br />

        <div>请输入流程名称：

        <input type="text" id="name" />

        </div>

        <br />

        <input type="button" value="新建" id="addbtn" />

    </body>

    <script>　　　　　　
　　　　　　//添加节点按钮加点击

        $("#add").click(function(){

            var uid = $("#users").val();

            $.ajax({

                url:"flowchuli.php",

                type:"POST",

                data:{uid:uid,type:0},

                dataType:"TEXT",

                success:function(){

                    window.location.href = "flow.php";

                }

            });

        })
　　　　　　//给删除按钮加点击

        $(".del").click(function(){

            var k = $(this).attr("code");//获取索引属性

            $.ajax({

                url:"flowchuli.php",

                type:"POST",

                data:{k:k,type:1},

                dataType:"TEXT",

                success:function(){

                    window.location.href = "flow.php";

                }

            });

        })

        //给保存按钮加点击

        $("#addbtn").click(function(){

            var name = $("#name").val();

            $.ajax({

                url:"flowchuli.php",

                type:"POST",

                data:{name:name,type:2},

                dataType:"TEXT",

                success:function(){

                    alert("添加成功!");

                }

            });

        })

    </script>

</html>

2.做新建流程页面的处理页面flowchuli.php

<?php

session_start();

require_once "./DBDA.class.php";

$db = new DBDA();

$type = $_POST["type"];

switch($type){

    case 0:

        $uid = $_POST["uid"];

        if(empty($_SESSION["jd"])){//暂存节点

            $arr = array($uid);//新造数组

            $_SESSION["jd"] = $arr;//存入session

        }else{

            $arr = $_SESSION["jd"];//取数组

            $arr[] = $uid;//追加变量到数组

            $_SESSION["jd"] = $arr;

        }

        break;

    case 1:

        $k = $_POST["k"];

        $arr = $_SESSION["jd"];

        unset($arr[$k]);

        $arr = array_values($arr);//重新对数组进行排序，有返回值接收

        $_SESSION["jd"] = $arr;

        break;

    case 2:

        $name = $_POST["name"];

        $code = time();//自动生成

        $sql = "insert into flow values('{$code}','{$name}')";//流程表

        $db->query($sql);

        //流程节点表

        $arr = $_SESSION["jd"];

        foreach($arr as $k=>$v){

            $sql = "insert into flowpath values(0,'{$code}','{$v}',{$k})";

            $db->query($sql);

        }

        break;

}

效果如图：

点击选择节点人员可以从数据库调所有人员名单，现在把李四，马七和张三放入流程中，做一个请假流程：

注意:Code必须用varchar，不能用time，因为在上面用了时间戳

3.现在我们在做一个登陆用户页面flowlogin.php，提交请假流程的所有步骤：

<!DOCTYPE html>

<html>

    <head>

        <meta charset="UTF-8">

        <title></title>

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

        <script src="bootstrap/js/bootstrap.min.js"></script>

        <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css"/>

    </head>

    <style>

        .title{

            margin-left: 600px;

            margin-top: 150px;

        }

        .quanju{

            margin-left: 450px;

            margin-top: -180px;

        }

        .name,.pwd{

            max-width: 120px;

        }

        .yangshi1{

            margin-top: 200px;

        }

    </style>

    <body>

<form class="form-horizontal" role="form">

    <h3 class="title">用户登录</h3>

    <div class="quanju">

            <div class="form-group yangshi1">

                <label for="firstname" class="col-sm-2 control-label">用户名:</label>

                <div class="col-sm-10">

                    <input type="text" class="form-control name" id="uid" placeholder="请输入用户名">

                </div>

            </div>

            <div class="form-group yangshi2">

                <label for="lastname" class="col-sm-2 control-label">密码:</label>

                <div class="col-sm-10">

                    <input type="text" class="form-control pwd" id="pwd" placeholder="请输入密码">

                </div>

            </div>

            <div class="form-group">

                <div class="col-sm-offset-2 col-sm-10">

                    <div class="checkbox">

                        <label>

                        <input type="checkbox">

                        保存密码 </label>

                        <label>

                        <input type="checkbox">

                        下次自动登录 </label>

                    </div>

                </div>

            </div>

            <div class="form-group">

                <div class="col-sm-offset-2 col-sm-10">

                    <button type="button" id="login" class="btn btn-warning" value="登录" >

                    登录

                    </button>

                </div>

            </div>

        </div>

    </form>

    </body>

    <script>
　　　　　　//登录按钮的点击事件

        $("#login").click(function(){

            var uid = $("#uid").val();

            var pwd = $("#pwd").val();

            $.ajax({

                type:"post",

                url:"flowloginchuli.php",

                data:{uid:uid,pwd:pwd},

                dataType:"TEXT",

                success:function(data){

                    if(data.trim()=="OK"){

                        window.location.href="flowmain.php";

                    }else{

                        alert("用户名或密码有误!");

                    }

                }

            });

        })

    </script>

</html>

4.登录后跳转的主页面flowmain.php

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> </head> <body> <h2>主页面</h2> <a href="flowfq.php">发起流程</a> <a href="flowsh.php">审核流程</a> </body> </html>

5.发起流程页面flow.php

<!DOCTYPE html>

<html>

    <head>

        <meta charset="UTF-8">

        <title></title>

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

    </head>

    <body>

        <h2>发起流程</h2>

        <form action="flowfqchuli.php" method="post">

            请选择流程：

            <select name="flow">

                <?php

                require_once "./DBDA.class.php";

                $db = new DBDA();

                $sql = "select * from flow";

                $arr = $db->query($sql,0);

                foreach($arr as $v){

                    echo "<option value='{$v[0]}'>{$v[1]}</option>";

                }

                ?>

            </select>

            <br />

            <br />

            请输入内容：

            <textarea name="content"></textarea>

            <br />

            <br />

            <input type="submit" value="确定" />

        </form>

    </body>

</html>

6.做发起流程的处理页面flowfq.php

<?php

session_start();

require_once "./DBDA.class.php";

$db = new DBDA();

$code = $_POST["flow"];

$uid = $_SESSION["uid"];

$content = $_POST["content"];

$time = date("Y-m-d H:i:s");

$sql = "insert into userflow values(0,'{$code}','{$uid}','{$content}',0,'{$time}',0)";

$db->query($sql);

header("location:flowmain.php");

7.审核页面flowsh.php

<!DOCTYPE html>

<html>

    <head>

        <meta charset="UTF-8">

        <title></title>

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

        <script src="bootstrap/js/bootstrap.min.js"></script>

        <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css"/>

    </head>

    <body>

    <div><h2>审核页面</h2>

        <table class="table table-bordered">

            <thead>

                <tr>

                    <th>流程代号</th>

                    <th>发起人</th>

                    <th>发起内容</th>

                    <th>通过状态</th>

                    <th>发起时间</th>

                    <th>操作</th>

                </tr>

            </thead>

            <tbody>

                <?php

                session_start();

                $uid = $_SESSION["uid"];

                require_once "./DBDA.class.php";

                $db = new DBDA();

                //相关子查询(用到父查询的数据)(父查询卡在某一位置)

                $sql = "select * from userflow a where towhere>=(select b.order from flowpath b where b.code=a.code and b.uid='{$uid}')";

                $arr = $db->query($sql,0);

                foreach($arr as $v){

                    //$v[6];//流程走到的位置towhere

                    //$v[1];//利用代号和session中存的name查询order

                    $sql = "select order from flowpath where code='{$v[1]}' and uid='{$uid}'";

                    $order = $db->StrQuery($sql,0);//该人员在流程中的次序

                    $str = "";

                    if($v[6]==$order){                            //传主键值

                        $str = "<a href='flowtgchuli.php?ids={$v[0]}'>通过</a>";

                    }else{

                        $str = "<span style='color:green'>已通过</span>";

                    }

                    echo "<tr>

                    <th>{$v[1]}</th>

                    <th>{$v[2]}</th>

                    <th>{$v[3]}</th>

                    <th>{$v[4]}</th>

                    <th>{$v[5]}</th>

                    <th>{$str}</th>

                </tr>";

                }

                ?>

            </tbody>

        </table>

    </div>

    </body>

</html>

8.做审核页面的处理页面flowshchuli.php

<?php

session_start();

$uid = $_SESSION["uid"];

require_once "./DBDA.class.php";

$db = new DBDA();

$ids = $_GET["ids"];

$sql = "update userflow set towhere=towhere+1 where ids='{$ids}'";

$db->query($sql);

//判断；流程是否结束(使用相关子查询)

$swc = "update userflow a set isok=1 where ids='{$ids}' towhere>=(select count(*) from flowpath b where b.code=a.code)";

header("location:flowsh.php");

流程效果如图：

李四的页面：

点击通过后：

数据库：towhere变成1后结束流程

接着该马七：

然后是张三：

数据库：isok变成1后结束流程

巴特西

PHP实现流程管理功能

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