1. Experimental hours
2 hours
2. Experimental purpose
1. Master the method of customizing PHP functions;
2. Master the data input method of PHP program;
3. Master the redirection method in PHP Web;
4. Proficient in using PHP selection and loop structures;
5. Master object-oriented programming syntax
3. Experimental equipment
PC computer, equipped with Win10 operating system, Word2019, PHPStudy+eclipse for php
4.Experimental content and procedures
( 1 ) Experimental steps
①New Project File—new—Local PHP Project
②Create a new php file, test-new-PHP File
③Enter the code and save it
④Verify the correctness of the code in the browser and output the running results
( 2 )Experimental content
[1] Implement user registration and user login functions (written as two functions to implement)
Front-end static page source code: index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登录</title>
</head>
<body>
<form action="login.php" method="post">
<table align="center">
<tr>
<td>学号:</td>
<td><input type="text" name="num"></td>
</tr>
<tr>
<td>姓名:</td>
<td><input type="text" name="name"></td>
</tr>
<tr>
<td>性别:</td>
<td>
<input type="radio" name="sex" value="男" checked>男
<input type="radio" name="sex" value="女">女
</td>
</tr>
<tr>
<td colspan="2">
<input type="submit" name="zhuce" id="" value="注册">
<input type="submit" name="ok" id="" value="登录">
<input type="reset" name="" id="" value="重置">
</td>
</tr>
</table>
</form>
</body>
</html>
Form handler source code: login.php. The program contains two methods, register() and login()
Among them, the student number entered in the register() method uses a regular expression to determine whether it is 8 digits and the format is correct. The registration information is displayed, but the format is incorrect; the output is "Registration failed, the student number format is incorrect!"
<?php
require_once 'student.class.php';
function login(){
if (isset($_POST['ok'])){
$xh = $_POST['num'];
$xm = $_POST['name'];
$xb = $_POST['sex'];
$stu=new student();
$stu->set($xh,$xm,$xb);
if ($stu->login()=='1'){
echo '登陆成功！';
}
else {
echo '登陆失败！';
}
}
}
function register(){
if (isset($_POST['zhuce'])){
$xh = $_POST['num'];
$xm = $_POST['name'];
$xb = $_POST['sex'];
$checkxh=preg_match('/^\d{8}$/',$xh);//检查学号是否是8位数字
$stu=new student();
$stu->set($xh,$xm,$xb);
if($checkxh){
$stu->show($xh, $xm, $xb);
echo '</br>';
}
else
echo "注册失败，学号格式不对！";
}
}
login();
register();
?>
student.class.php for object-oriented programming
<?php
class student{
private $num;
private $name;
private $sex;
public function show($xh,$xm,$xb){
$this->num=$xh;
$this->name=$xm;
$this->sex=$xb;
echo '学号:'.$this->num.'</br>';
echo '姓名:'.$this->name.'</br>';
echo '性别:'.$this->sex.'</br>';
}
public function set($xh,$xm,$xb){
$this->num=$xh;
$this->name=$xm;
$this->sex=$xb;
}
public function login(){
if ($_POST['name']=='admin'){
return '1';
}
}
}
?>
Run the resulting test:
- Front-end page
- When registering, when the entered student number is not 8 digits
- When registering, the student number entered is 8 digits
- When logging in, the name is admin, that is, the information entered is correct.
- When logging in, inputting incorrect information
[2] The page outputs an 8-digit random string, and the randomly displayed content ranges from uppercase and lowercase characters plus numbers from 0 to 9.
<?php
function randstring($n){
$a=range('a', 'z');
$b=range('A', 'Z');
$c=range('0', '9');
$d = array_merge($a,$b,$c);
$str='';
for ($i=1;$i<=$n;$i++){
$str.=$d[rand(0,count($d)-1)];
}
return $str;
}
$str=randstring(8);
echo $str;
?>