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How to implement the initiation process and review process using php+ajax

墨辰丷Original: 2018-05-21 15:21:301932browse

This article mainly introduces the php ajax initiation process and review process (taking leave as an example). Friends in need can refer to it

Let me talk about the ideas first:

(1) Log in and use session to obtain the user’s ID

(2) The user initiates a process

Note: You need to write the application reason

(3) The reviewer at the node will review in turn

Note: for each review that passes, the corresponding towhere field will be added by 1; when the review reaches the end, the corresponding isok field will change to 1 (here 1 means the end, 0 means Not ended)

shares three tables:

Step one: Make a simple login page first, and use session to get the user name:

denglu.php page

<!DOCTYPE html>
<html>
 <head>
 <meta charset="UTF-8">
 <title></title>
 </head>
 <body>
 <form method="post" action="denglu-cl.php">
  用户名：<input type="text" name="uid" /><br />
  密码：<input type="password" name="pwd" /><br />
  <input type="submit" value="登录" />
 </form>
 </body>
</html>

denglu-cl.php page

<?php
session_start();
require "../DB.class.php";
$db = new DB();
$uid = $_POST["uid"];
$pwd = $_POST["pwd"];
$sql = "select pwd from users where uid=&#39;{$uid}&#39;";
$mm = $db->strquery($sql);
if($pwd==$mm && !empty($pwd))
{
 $_SESSION["uid"]=$uid;
 header("location:liucheng.php");
}
else
{
 echo "密码或登录名输入错误";
}
?>

Rendering:

Step 2: Make a simple note page: liucheng.php

<!DOCTYPE html>
<html>
 <head>
 <meta charset="UTF-8">
 <title></title>
 <style>
  #body{
  height: 200px;
  width: 300px;
  background-color: gainsboro;
  margin: 200px auto;
  text-align: center;
  vertical-align: middle;
  line-height: 30px;
  }
 </style>
 </head>
 <body>
 <p id="body">
 <h2>主页面</h2>
 <p>
  <a href="faqi.php" rel="external nofollow" >发起流程</a><br />
  <a href=&#39;shenhe.php&#39;>审核流程</a>
 </p>
 </p>
 </body>
</html>

Rendering:

Step 3: Initiate the process page faqi.php

(1) First display all processes in a drop-down list

(2) The reason for initiating the process needs to be filled in by the logged in user

<!DOCTYPE html>
<html>
 <head>
 <meta charset="UTF-8">
 <title></title>
  <style>
  #body{
  height: 250px;
  width: 300px;
  background-color: gainsboro;
  margin: 200px auto;
  text-align: left;
  vertical-align: middle;
  line-height: 30px;
  padding-left: 30px;
  }
 </style>
 </head>
 <body>
 <p id="body">
  <form method="post" action="faqi-cl.php">
  <h2>发起流程页面</h2>
  <select id="lc">
  <?php
   require "../DB.class.php";
   $db = new DB();
   $sql = "select * from liucheng";
   $arr = $db->query($sql);
   foreach($arr as $v)
   {
   echo "<option value=&#39;{$v[0]}&#39;>{$v[1]}</option>"; 
   }   
  ?>
  </select><br />
  发起流程事由：
  <textarea class="nr"> </textarea><br />
  <input type="button" value="确定发起" /> 
  </form>
 </p>
 </body>
</html>

Step 4: Write the initiation process The processing page fq-cl.php

<?php
session_start();
require "../DB.class.php";
$db = new DB();
$code = $_POST["lc"];
$nr =$_POST["nr"];
$uid = $_SESSION["uid"];
$time = date("Y-m-d H:i:s",time());
$sql = "insert into liuchengpath values (&#39;&#39;,&#39;{$code}&#39;,&#39;{$uid}&#39;,&#39;{$nr}&#39;,0,&#39;{$time}&#39;,0)";
$db->query($sql,0);
header("location:liucheng.php");
?>

Click "Confirm Initiation" and this data will be added to the database

Step 5: Process review page shenhe.php

Knowledge points used: subquery: irrelevant subquery (subquery and parent query can be executed independently); related subquery (subquery The conditions here use something from the parent query )

<!DOCTYPE html>
<html>
 <head>
 <meta charset="UTF-8">
 <title></title>
  <style>
  #body{
  height: 450px;
  width: 800px;
  background-color: gainsboro;
  margin: 200px auto;
  text-align: left;
  vertical-align: middle;
  line-height: 30px;
  padding-left: 30px;
   }
 </style>
 </head>
 <body>
 <p id="body">
  <h2>流程审核页面</h2>
  <?php
  session_start();
  $uid = $_SESSION["uid"];
  require "../DB.class.php";
  $db = new DB();
  //先取该用户参与的所有流程
  //并且取流程步骤到达该用户或已经被改用户审核通过的记录
  $sql="select * from liuchengpath a where code in(select code from liuchengjiedian where uids=&#39;{$uid}&#39;) and towhere >=(select orders from liuchengjiedian b where b.code = a.code and b.uids = &#39;{$uid}&#39;)";
  $arr = $db->query($sql);
  //var_dump($arr);
  echo "<table border=&#39;1&#39; width=&#39;100%&#39; cellpadding=&#39;0&#39; cellspacing=&#39;0&#39;>
    <tr>
    <td>流程代号</td>
    <td>发起者</td>
    <td>发起内容</td>
    <td>发起时间</td>
    <td>是否结束</td>
    <td>操作</td>
    </tr>";
  foreach($arr as $v){
   //操作最后一列
   //设置默认项
   $zt = "<a href=&#39;tongguo-cl.php?code={$v[0]}&#39;>审核未通过</a>";
   $sql = "select orders from liuchengjiedian where code =&#39;{$v[1]}&#39; and uids =&#39;{$uid}&#39;";
   $wz = $db->strquery($sql);
   if($v[6]>$wz)
   {
   $zt = "<span style=&#39;color:green&#39;>审核已通过</span>";
   }
   echo "<tr>
    <td>{$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>";  
  ?>
 </p>
 </body>
</html>

Step 6: Write tongguo-cl.php page (important)

<?php
$ids = $_GET["code"];
require "../DB.class.php";
$db = new DB();
//点击审核后，towhere列加1，目的是使流程向下走
$sql = "update liuchengpath set towhere = towhere+1 where ids =&#39;{$ids}&#39; ";
$db->query($sql,0);
//当流程走到最后一个审核的人时，流程要结束
//获取该流程最大的orders
$sql =" select max(orders) from liuchengjiedian where code = (select code from liuchengpath where ids =&#39;{$ids}&#39;)";
$maxorders = $db->strquery($sql);
//获取该用户处于哪个位置，也就是towhere等于多少
$sql ="select towhere from liuchengpath where ids =&#39;{$ids}&#39;";
$towhere = $db->strquery($sql);
//判断是否已到达最后一个审核的人
if($towhere>$maxorders)
{
 $sql = "update liuchengpath set isok=1 where ids=&#39;{$ids}&#39;";
// var_dump($sql);
 $db->query($sql,0);
}
header("location:shenhe.php");
?>

When this step is written, click "Audit failed" and it will change to "Audit passed";

Let’s verify the effect from the beginning:

First: initiate a new leave process:

Secondly: zhangsan is the first to ask for leave The reviewer

clicks "After the review fails",

Finally : zhaoliu is the last reviewer

After clicking "Audit failed", whether the end is changed to 1; the operation turns green "Audit passed"~~~

Related recommendations:

continue statement for php process control

php flow control break statement

php flow control what is foreach

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