Backend DevelopmentPHP TutorialShare examples of initiating process and review process using php+ajaxShare examples of initiating process and review process using php+ajax
This article mainly introduces the php+ajax initiation process and review process (taking leave as an example). Friends who need it can refer to it
The previous essay has mentioned how to create a new process, so now Let’s take a look at how to initiate a process and review process~~~
Let’s talk about the idea first:
(1) Log in with session 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 it in sequence
Three tables:
<!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"];
$sql = "select pwd from users where uid='{$uid}'";
$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:
<!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 id="主页面">主页面</h2>
<p>
<a href="faqi.php" rel="external nofollow" >发起流程</a><br />
<a href='shenhe.php'>审核流程</a>
</p>
</p>
</body>
</html> Rendering:
<!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 id="发起流程页面">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 $v)
{
echo "<option value='{$v[0]}'>{$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>
<?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());
$sql = "insert into liuchengpath values ('','{$code}','{$uid}','{$nr}',0,'{$time}',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 (the conditions in the subquery 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 id="流程审核页面">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
$sql="select * from liuchengpath a where code in(select code from liuchengjiedian where uids='{$uid}') and towhere >=(select orders from liuchengjiedian b where b.code = a.code and b.uids = '{$uid}')";
$arr = $db->query($sql);
//var_dump($arr);
echo "<table border='1' width='100%' cellpadding='0' cellspacing='0'>
<tr>
<td>流程代号</td>
<td>发起者</td>
<td>发起内容</td>
<td>发起时间</td>
<td>是否结束</td>
<td>操作</td>
</tr>";
foreach($arr as $v){
//操作最后一列
//设置默认项
$zt = "<a href='tongguo-cl.php?code={$v[0]}'>审核未通过</a>";
$sql = "select orders from liuchengjiedian where code ='{$v[1]}' and uids ='{$uid}'";
$wz = $db->strquery($sql);
if($v[6]>$wz)
{
$zt = "<span style='color:green'>审核已通过</span>";
}
echo "<tr>
<td>{$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>Sixth Step: 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
$sql = "update liuchengpath set towhere = towhere+1 where ids ='{$ids}' ";
$db->query($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
$sql =" select max(orders) from liuchengjiedian where code = (select code from liuchengpath where ids ='{$ids}')";
$maxorders = $db->strquery($sql);
//获取该用户处于哪个位置，也就是towhere等于多少
$sql ="select towhere from liuchengpath where ids ='{$ids}'";
$towhere = $db->strquery($sql);
//判断是否已到达最后一个审核的人
if($towhere>$maxorders)
{
$sql = "update liuchengpath set isok=1 where ids='{$ids}'";
// var_dump($sql);
$db->query($sql,0);
}
header("location:shenhe.php");
?>After writing this step, click "Audit failed" and it will change to "Audit passed";
Let’s verify the effect from the beginning:
First: initiate a new leave process:
Second: zhangsan Is the first person to be reviewed
Click "After review failed",
Finally: zhaoliu is the last reviewer
##After clicking "Audit failed", whether the end is changed to 1; The operation changes to green "Audit passed"~~~
The above is the detailed content of Share examples of initiating process and review process using php+ajax. For more information, please follow other related articles on the PHP Chinese website!
What are the advantages of using a database to store sessions?Apr 24, 2025 am 12:16 AMThe main advantages of using database storage sessions include persistence, scalability, and security. 1. Persistence: Even if the server restarts, the session data can remain unchanged. 2. Scalability: Applicable to distributed systems, ensuring that session data is synchronized between multiple servers. 3. Security: The database provides encrypted storage to protect sensitive information.
How do you implement custom session handling in PHP?Apr 24, 2025 am 12:16 AMImplementing custom session processing in PHP can be done by implementing the SessionHandlerInterface interface. The specific steps include: 1) Creating a class that implements SessionHandlerInterface, such as CustomSessionHandler; 2) Rewriting methods in the interface (such as open, close, read, write, destroy, gc) to define the life cycle and storage method of session data; 3) Register a custom session processor in a PHP script and start the session. This allows data to be stored in media such as MySQL and Redis to improve performance, security and scalability.
What is a session ID?Apr 24, 2025 am 12:13 AMSessionID is a mechanism used in web applications to track user session status. 1. It is a randomly generated string used to maintain user's identity information during multiple interactions between the user and the server. 2. The server generates and sends it to the client through cookies or URL parameters to help identify and associate these requests in multiple requests of the user. 3. Generation usually uses random algorithms to ensure uniqueness and unpredictability. 4. In actual development, in-memory databases such as Redis can be used to store session data to improve performance and security.
How do you handle sessions in a stateless environment (e.g., API)?Apr 24, 2025 am 12:12 AMManaging sessions in stateless environments such as APIs can be achieved by using JWT or cookies. 1. JWT is suitable for statelessness and scalability, but it is large in size when it comes to big data. 2.Cookies are more traditional and easy to implement, but they need to be configured with caution to ensure security.
How can you protect against Cross-Site Scripting (XSS) attacks related to sessions?Apr 23, 2025 am 12:16 AMTo protect the application from session-related XSS attacks, the following measures are required: 1. Set the HttpOnly and Secure flags to protect the session cookies. 2. Export codes for all user inputs. 3. Implement content security policy (CSP) to limit script sources. Through these policies, session-related XSS attacks can be effectively protected and user data can be ensured.
How can you optimize PHP session performance?Apr 23, 2025 am 12:13 AMMethods to optimize PHP session performance include: 1. Delay session start, 2. Use database to store sessions, 3. Compress session data, 4. Manage session life cycle, and 5. Implement session sharing. These strategies can significantly improve the efficiency of applications in high concurrency environments.
What is the session.gc_maxlifetime configuration setting?Apr 23, 2025 am 12:10 AMThesession.gc_maxlifetimesettinginPHPdeterminesthelifespanofsessiondata,setinseconds.1)It'sconfiguredinphp.iniorviaini_set().2)Abalanceisneededtoavoidperformanceissuesandunexpectedlogouts.3)PHP'sgarbagecollectionisprobabilistic,influencedbygc_probabi
How do you configure the session name in PHP?Apr 23, 2025 am 12:08 AMIn PHP, you can use the session_name() function to configure the session name. The specific steps are as follows: 1. Use the session_name() function to set the session name, such as session_name("my_session"). 2. After setting the session name, call session_start() to start the session. Configuring session names can avoid session data conflicts between multiple applications and enhance security, but pay attention to the uniqueness, security, length and setting timing of session names.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Dreamweaver CS6
Visual web development tools
WebStorm Mac version
Useful JavaScript development tools
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
SublimeText3 Mac version
God-level code editing software (SublimeText3)
