本文为大家分享了PHP在线书签系统,感兴趣的小伙伴们可以参考一下
1、需求分析
首先,需要识别每个用户。应该有验证机制。
其次,需要保存单个用户的书签。用户应该能够添加和删除书签。
再次,需要根据对他们的了解,向用户建议他们可能感兴趣的站点。
2、解决方案
2.1 系统流程图
2.2 PHPbookmark中的文件列表
3、实现数据库
create database bookmarks; use bookmarks; create table user ( username varchar(16) primary key, passwd char(40) not null, email varchar(100) not null ); create table bookmark ( username varchar(16) not null, bm_URL varchar(255) not null, index (username), index (bm_URL) ); grant select, insert, update, delete on bookmarks.* to bm_user@localhost identified by 'password';
4、实现基本的网站
4.1 login.php
<?php /** * 包含系统登录表单的页面 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); //应用程序的包含文件集合 do_html_header(''); //HTML标题 display_site_info();//HTML站点信息 display_login_form();//HTML登录信息 do_html_footer(); //HTML页脚 ?>
4.2 bookmark_fns.php
<?php /** * 应用程序的包含文件集合 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('data_valid_fns.php'); //确认用户输入数据有效的函数 require_once('db_fns.php'); // 连接数据库的函数 require_once('user_auth_fns.php'); //用户身份验证的函数 require_once('output_fns.php'); //以HTML形式格式化输出的函数 require_once('url_fns.php'); //增加和删除书签的函数 ?>
5、实现用户身份验证
5.1 register_form.php
<?php /** * 系统中用户注册表单 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); do_html_header('User Registration'); //HTML标题 display_registeration_form(); //输出注册表单 do_html_footer(); //HTML页脚 ?>
5.2 register_new.php
<?php /** * 处理新注册信息的脚本 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); //创建变量 $email = $_POST['email']; $username = $_POST['username']; $passwd = $_POST['passwd']; $passwd2 = $_POST['passwd2']; //开启会话 session_start(); try { //检查表单是否填写满 if(!filled_out($_POST)) { throw new exception('You have not filled the form out correctly - please go back and try again.'); } //检查邮件地址是否有效 if(!valid_email($email)) { throw new exception('That is not a vald email address. Please go back try again.'); } //检查两次输入密码是否相同 if($passwd != $passwd2) { throw new exception('The passwords you entered do not match - please go back try again.'); } //检查密码长度是否合格 if((strlen($passwd) < 6) || (strlen($passwd) > 16)) { throw new exception('Your password must be between 6 and 16 characters Please go back and try again.'); } //尝试注册 register($username,$email,$passwd); //注册会话变量 $_SESSION['valid_user'] = $username; //提供成员页面链接 do_html_header('Registration successful'); //HTML标题 echo 'Your registration was successful.Go to the members page to start setting up your bookmarks!'; //输出URL do_html_URL('member.php','Go to members page'); //HTML页脚 do_html_footer(); //HTML页脚 } catch(exception $e) { do_html_header('Problem:'); echo $e->getMessage(); do_html_footer(); exit; } ?>
5.3 member.php
<?php /** * 用户的主页面,包含该用户所有的当前书签 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); session_start(); //创建变量 $username = @$_POST['username']; $passwd = @$_POST['passwd']; if($username && $passwd) { try { login($username,$passwd); //如果该用户在数据库中,则注册会话变量 $_SESSION['valid_user'] = $username; } catch(exception $e) { //登录不成功 do_html_header('Problem:'); echo 'You could not be logged in. You must be logged in to view this page.'; do_html_URL('login.php','Login'); do_html_footer(); exit; } } do_html_header('Home'); check_valid_user(); //获取用户的书签 if($url_array = get_user_urls($_SESSION['valid_user'])) display_user_urls($url_array); //获取用户菜单选项 display_user_menu(); do_html_footer(); ?>
5.4 logout.php
<?php /** * 将用户注销的脚本 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); session_start(); $old_user = $_SESSION['valid_user']; //注销会话变量 unset($_SESSION['valid_user']); $result_dest = session_destroy(); do_html_header('Logging Out'); if(!empty($old_user)) { if($result_dest) //登出成功 { echo 'Logged out.<br />'; do_html_URL('login.php','Login'); } else //不成功 { echo 'Could not log you out.<br />'; } } else { echo 'You were not logged in, and so have not been logged ot.<br />'; do_html_URL('login.php','Login'); } do_html_footer(); ?>
5.5 change_passwd.php
<?php /** * 修改数据库中用户密码的表单 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); session_start(); do_html_header('Changing password'); //创建变量 $old_passwd = $_POST['old_passwd']; $new_passwd = $_POST['new_passwd']; $new_passwd2 = $_POST['new_passwd2']; try { check_valid_user(); if(!filled_out($_POST)) throw new exception('You have not filled out the form completely.Please try again.'); if($new_passwd != $new_passwd2) throw new exception('Passwords entered were not the same. Not changed.'); if((strlen($new_passwd) > 16) || (strlen($new_passwd) < 6)) { throw new exception('New password must be between 6 and 16 characters. Try again.'); } //尝试修改 change_password($_SESSION['valid_user'],$old_passwd,$new_passwd); echo 'Password changed.'; } catch(exception $e) { echo $e ->getMessage(); } display_user_menu(); do_html_footer(); ?>
5.6 forgot_paswd.php
<?php /** * 重新设置遗忘密码的脚本 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); do_html_header("Resetting password"); //创建变量 $username = $_POST['username']; try { $passwd = reset_password($username); notify_password($username,$passwd); echo 'Your new password has been emailed to you.<br />'; } catch(exception $e) { echo 'Your password could not be reset - please try again later.'; } do_html_URL('login.php','Login'); do_html_footer(); ?>
6、实现书签的存储和检索
6.1 add_bms.php
<?php /** * 添加书签的表单 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); session_start(); //创建变量 $new_url = $_POST['new_url']; do_html_header('Adding bookmarks'); try { check_valid_user(); //检查用户有效性 if(!filled_out($new_url)) //检查表单是否填写 throw new exception('Form not completely filled out.'); if(strstr($new_url,'http://') === false) $new_url = 'http://'. $new_url; if(!(@fopen($new_url,'r'))) //可以调用fopen()函数打开URL,如果能打开这个文件,则假定URL是有效的 throw new exception('Not a valid URL.'); add_bm($new_url); //将URL添加到数据库中 echo 'Bookmark added.'; if($url_array = get_user_urls($_SESSION['valid_user'])) display_user_urls($url_array); } catch(exception $e) { echo $e ->getMessage(); } display_user_menu(); do_html_footer(); ?>
6.2 delete_bms.php
<?php /** * 从用户的书签列表中删除选定书签的脚本呢 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); session_start(); //创建变量 $del_me = @$_POST['del_me']; $valid_user = $_SESSION['valid_user']; do_html_header('Deleting bookmarks'); check_valid_user(); if(!filled_out($del_me)) // { echo '<p>You have not chosen any bookmarks to delete.<br />Please try again.</p>'; display_user_menu(); do_html_footer(); exit; } else { if(count($del_me) > 0) { foreach($del_me as $url) { if(delete_bm($valid_user,$url)) { echo 'Deleted '. htmlspecialchars($url) .'.<br />'; } else { echo 'Could not delete '. htmlspecialchars($url) .'.<br />'; } } } else { echo 'No bookmarks selected for deletion'; } } if($url_array = get_user_urls($valid_user)) { display_user_urls($url_array); } display_user_menu(); do_html_footer(); ?>
6.3 recommend.php
<?php /** * 基于用户以前的操作,推荐用户可能感兴趣的书签 */ //require_once语句和require语句完全相同,唯一区别是PHP会检查该文件是否已经被包含过,如果是则不会再次包含。 require_once('bookmark_fns.php'); session_start(); do_html_header('Recommending URLs'); try { check_valid_user(); $urls = recommend_urls($_SESSION['valid_user']); display_recommended_urls($urls); } catch(exception $e) { echo $e ->getMessage(); } display_user_menu(); do_html_footer(); ?>
以上就是PHP在线书签系统的详细代码,希望对大家的学习有所帮助。

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