php melaksanakan fungsi log masuk
- **asal
- 2021-09-22 18:00:35569semak imbas
Php简介：
引用:PHP即“超文本预处理器”，是在服务器端执行的脚本语言，尤其适用于Web开发并可嵌入HTML中。PHP语法学习了C语言，吸纳Java和Perl多个语言的特色发展出自己的特色语法，并根据它们的长项持续改进提升自己，例如java的面向对象编程，该语言当初创建的主要目标是让开发人员快速编写出优质的web网站。 PHP同时支持面向对象和面向过程的开发，使用上非常灵活。
经过二十多年的发展，随着php-cli相关组件的快速发展和完善，PHP已经可以应用在 TCP/UDP服务、高性能Web、WebSocket服务、物联网、实时通讯、游戏、微服务等非 Web 领域的系统研发。
我们开发php网站需要配置apache、mysql,利用集成环境开发网站，例如小皮面板、xampp等集成环境,现在我们利用PHP来做一个登录功能
前端页面：login.php
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514d05be645eb7d51e331036aaf6fa36 记住我（请在私人计算机上使用此功能）
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Kod belakang: public/login.php
< ;?php
include_once 'server.php';
$user=$_GET['username'];
$pwd=$_GET['password'] ;
$sql="select * from user where user=$user and password=$pwd";
$result=$conn->query($sql);
if($result->num_rows>0){
$row=$result->fetch_assoc();//Dapatkan tatasusunan daripada set hasil
echo json_encode( $row);//Tukar kepada format json
session_start();
$_SESSION['name']=$user;
echo "85892338dea33e2daa35f4b67e3bcc9b
window.location.href='../index.php?user=' $user;
2cacc6d41bbb37262a98f745aa00fbf0";
}
lain{
gema "7c6ecc2a75ade4ffa1f50134f6be3b0e
alert('Kata laluan akaun salah ' );
window.location.href='../login.php';
2cacc6d41bbb37262a98f745aa00fbf0";
}
$ result->free_result();
$conn->close();
?>
Kod ini akan mengeluarkan data jika log masuk Kegagalan akan mengakibatkan akaun dan kata laluan yang salah
Sever.php:
c6992c6f4d408ffa06b296147685bdc0connect_error){
mati(" Sambungan gagal: ".$conn->connect_error);
}
//echo "Sambungan berjaya";
?>
ini Segmen kod ialah kod sambungan pangkalan data
Pernyataan penciptaan pangkalan data
/*
Pemindahan Data MySQL Navicat
Pelayan Sumber : stu1
Versi Pelayan Sumber : 50505
Hos Sumber : localhost:3306
Pangkalan Data Sumber : shop_center
Jenis Pelayan Sasaran : MYSQLVersi Pelayan Sasaran : 50505Pengekodan Fail : 65001 Tarikh: 2021-04-29: 18:57:18 52 */ SET ASING_KEY_CHECKS=0; ------------ ------ ------------ Struktur jadual untuk `dingdan`-------------- ---- -----------JATUHKAN JADUAL JIKA WUJUD `dingdan`;BUAT JADUAL `dingdan` ( `id` int(11) BUKAN NULL AUTO_INCREMENT, `nama kedai` varchar(50) LALAI NULL, `harga` perpuluhan(8,2) LALAI NULL, `jieshao ` varchar(50 ) NULL lalai, `img` int(11) NULL lalai, `count` int(11) NULL lalai, `jumlah` int (11) NULL lalai, `alamat` varchar(50) NULL lalai, `nama` varchar(25) NULL lalai, KUNCI UTAMA (`id` )
) ENJIN=InnoDB AUTO_INCREMENT=5 CARSET LALAI=utf8; -------------------- ---- --------- Rekod dingdan---------------------- ----- ----MASUKKAN KE DALAM NILAI `dingdan` ('4', 'Pencuci muka', '50.00', 'Pencuci muka yang sangat mudah digunakan', '1', '1 ', null, null , '123'); ------------------------- --------- Struktur jadual untuk `gouwuche`---------------------- -----------JATUHKAN JADUAL JIKA WUJUD `gouwuche`;BUAT JADUAL `gouwuche` ( `id` int(11) BUKAN NULL AUTO_INCREMENT, `nama kedai` varchar(25) NULL lalai, `harga` perpuluhan(8,2) NULL lalai, `jieshao` varchar(50 ) NULL lalai, `img` int(2) NULL lalai, `count` int(10) NULL lalai, `nama` varchar(20) lalai NULL, `alamat` varchar( 50) NULL LALAI, KUNCI UTAMA (`id`)) ENGINE=InnoDB AUTO_INCREMENT=16 CHARSET LALAI=utf8; -- ------------------------------ Rekod daripada gouwuche-- --- --------------------------MASUKKAN KE DALAM `gouwuche` NILAI ('13', 'Pencuci Muka', '50.00' , 'Pencuci muka yang sangat berguna', '1', '10', '123', null);MASUKKAN KE DALAM NILAI `gouwuche` ('14', 'Losyen penjagaan kulit', '60.00' , 'Kulit lembut, berkilat dan lembap', '2', '3', '123', null);MASUKKAN KE DALAM `gouwuche` NILAI ('15', 'telefon bimbit Huawei', '5000.00' , 'Berkualiti tinggi, skrin melengkung, muat semula pantas, tiada lag', '7', '2', '123', batal); -- ----- ------------------------- Struktur jadual untuk `kedai `-- ----- ----------JATUHKAN MEJA JIKA WUJUD `kedai` ;BUAT MEJA `kedai` (
`id` int(11) BUKAN NULL AUTO_INCREMENT,
`nama kedai` varchar(25) NULL LALAI,
`harga` perpuluhan(8,2) NULL LALAI,
`jieshao` varchar(50) NULL lalai,
`img` int(2) NULL lalai,
KUNCI UTAMA (`id`)
) ENJIN=InnoDB AUTO_INCREMENT=13 CARSET LALAI=utf8;
------------------------- ------- ---
-- Rekod kedai
---------------------- --------
MASUKKAN KE DALAM NILAI `kedai` ('1', 'Pencuci Muka', '50.00', 'Pencuci muka yang sangat mudah digunakan', '1');
MASUKKAN KE DALAM `shop ` NILAI ('2', 'losyen kulit', '60.00', 'kulit lembut, berseri dan melembapkan', '2');
MASUKKAN KE DALAM NILAI `kedai` ('3', 'headphone' , '50.00', 'Bluetooth headset, super long standby', '3');
MASUKKAN KE DALAM NILAI `kedai` ('4', 'Headset berkualiti tinggi' , '100.00', 'Kualiti bunyi yang jelas, Kualiti bunyi tanpa kerugian berkualiti tinggi', '4');
MASUKKAN KE DALAM NILAI `kedai` ('5', 'Selipar', '20.00', 'Tahan lama dan sangat selesa', '5');
MASUKKAN KE DALAM NILAI `kedai` ('6', 'Telefon mudah alih', '980.00', 'Segar semula pantas, dua minit pengecasan, dua jam masa bercakap ', '6');
MASUKKAN KE DALAM NILAI `kedai` ('7', 'telefon bimbit Huawei', '5000.00', 'Berkualiti tinggi, skrin melengkung, muat semula pantas, tiada lag', '7 ');
MASUKKAN KE DALAM NILAI `kedai` ('8', 'Perapi', '50.00', 'Melembapkan kulit kepala, melindungi rambut dan menjadikan kepala botak kelihatan panjang dan mengalir', '8 ');
MASUKKAN KE DALAM NILAI `kedai` (' 9', 'iPhone', '5000.00', 'Berkualiti tinggi, Apple membawakan anda pengalaman berbeza', '9');
MASUKKAN KE DALAM NILAI `kedai` ('10', 'Kotak Bagasi', '280.00', 'Roda senyap, kapasiti galas beban yang kuat, tahan haus', '10');
MASUKKAN KE DALAM ` shop` NILAI ('11', 'Ubat Gigi', '18.00', ' Mengandungi polifenol teh untuk memutihkan gigi', '11');
MASUKKAN KE DALAM NILAI `kedai` ('12', 'Ubat Gigi Sensodyne ', '28.00', 'Cegah sensitiviti gigi dan putihkan gigi, Cegah pendarahan gusi', '12');
-------------- -------------- --
-- Struktur jadual untuk `pengguna`
-------------- ----------------- --
JATUHKAN JADUAL JIKA WUJUD `pengguna`;
BUAT JADUAL `pengguna` (
`id` int(11) BUKAN NULL AUTO_INCREMENT,
`pengguna` varchar(25) LALAI NULL,
`kata laluan` varchar(25) LALAI NULL,
KUNCI UTAMA (`id`)
) ENJIN=InnoDB AUTO_INCREMENT=4 CHARSET LALAI=utf8;
------------- ---------------------
-- Rekod pengguna
------------ -------------------
MASUKKAN KE DALAM NILAI `pengguna` ('1', '123', '123');
MASUKKAN KE DALAM NILAI `pengguna` ('2', '', '');
MASUKKAN KE DALAM NILAI `pengguna` ('3', '12121', '212');
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