PHP网站安装完成程序
发布时间：2022-02-11 18:29:04 所属栏目：PHP教程 来源：互联网
导读：网站安装过程我们需要几处非常简单,一个是我们要让用户输入用户名密码然后连接数据库之后再把我们以前准备好.sql文件利用php读取并执行,最后简单配置一下站点,这样一个完整的php网站安装过程就完美的搞定了. 这次顺便做了一个install.php才发现难度其实并
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网站安装过程我们需要几处非常简单,一个是我们要让用户输入用户名密码然后连接数据库之后再把我们以前准备好.sql文件利用php读取并执行,最后简单配置一下站点,这样一个完整的php网站安装过程就完美的搞定了. 这次顺便做了一个install.php才发现难度其实并不大.还是文件写入操作而已.安装其实主要操作的还是数据库里的内容.先来看看文件里怎么写:还是用的Codeigiter,对于使用其他框架或者手写而言,仅思路可参考,用了挺多CI自带的helper或者是library的,代码如下: $content = "<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');n"; $content .= '$active_group'. "= 'default';n"; $content .= '$active_record'." = TRUE;n"; $content .= '$db'."['default']['hostname'] = '".$this->input->post('hostname')."';n"; $content .= '$db'."['default']['username'] = '".$this->input->post('rootname')."';n"; $content .= '$db'."['default']['password'] = '".$this->input->post('pass')."';n"; $content .= '$db'."['default']['database'] = '".$this->input->post('book')."';n";//开源代码Cuoxin.com $content .= '$db'."['default']['dbdriver'] = 'mysql';n"; $content .= '$db'."['default']['dbprefix'] = '';n"; $content .= '$db'."['default']['pconnect'] = TRUE;n"; $content .= '$db'."['default']['db_debug'] = TRUE;n"; $content .= '$db'."['default']['cache_on'] = FALSE;n"; $content .= '$db'."['default']['cachedir'] = '';n"; $content .= '$db'."['default']['char_set'] = 'utf8';n"; $content .= '$db'."['default']['dbcollat'] = 'utf8_general_ci';n"; $content .= '$db'."['default']['swap_pre'] = '';n"; $content .= '$db'."['default']['autoinit'] = TRUE;n"; $content .= '$db'."['default']['stricton'] = FALSE;"; 在文件里用n来换行,因为里面包括了PHP的代码,这导致了我们只能用双引号避免冲突,否则的话就得用了,感觉工作量更大,针对$db,直接显示必须要用单引号,于是就出现了这个. 写入文件之后,接着我们需要做的是执行一系列安装操作,也就是CREATE TABLE,以及创建一个新用户用于登陆,在model里,我这么写,代码如下: function install() { if (mysql_num_rows(mysql_query("SHOW TABLES LIKE 'pr_category'")) == 0) $this->db->query("CREATE TABLE pr_category(id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, category VARCHAR(100) NOT NULL UNIQUE, deadline INT NOT NULL)"); if (mysql_num_rows(mysql_query("SHOW TABLES LIKE 'pr_college'")) == 0) $this->db->query("CREATE TABLE pr_college(id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, name VARCHAR(100) NOT NULL UNIQUE)"); if (mysql_num_rows(mysql_query("SHOW TABLES LIKE 'pr_level'")) == 0) $this->db->query("CREATE TABLE pr_level(id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, level INT NOT NULL, name VARCHAR(20) NOT NULL)"); if (mysql_num_rows(mysql_query("SHOW TABLES LIKE 'pr_rates'")) == 0) $this->db->query("CREATE TABLE pr_rates(id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, pid INT NOT NULL, ip VARCHAR(40) NOT NULL, category INT NOT NULL)"); if (mysql_num_rows(mysql_query("SHOW TABLES LIKE 'pr_users'")) == 0) $this->db->query("CREATE TABLE pr_users(uid INT NOT NULL PRIMARY KEY AUTO_INCREMENT, username VARCHAR(45) NOT NULL UNIQUE, password VARCHAR(50) NOT NULL, level INT NOT NULL )"); if (mysql_num_rows(mysql_query("SHOW TABLES LIKE 'pr_works'")) == 0) $this->db->query("CREATE TABLE pr_works(pid INT NOT NULL PRIMARY KEY AUTO_INCREMENT, title VARCHAR(100) NOT NULL, content TEXT, realname VARCHAR(20) NOT NULL, studentnum VARCHAR(20) NOT NULL, college INT NOT NULL, filename TEXT NOT NULL, category INT NOT NULL)"); $query1 = $this->db->get_where('pr_level',array('level' => 1, 'name' => '普通用户')); $query2 = $this->db->get_where('pr_level',array('level' => 5, 'name' => '管理员')); $query3 = $this->db->get_where('pr_level',array('level' => 99, 'name' => '超级管理员')); if ($query1->num_rows() == 0) $this->db->query("INSERT INTO pr_level(level, name) VALUES (1, '普通用户')"); if ($query2->num_rows() == 0) $this->db->query("INSERT INTO pr_level(level, name) VALUES (5, '管理员')"); if ($query3->num_rows() == 0) $this->db->query("INSERT INTO pr_level(level, name) VALUES (99, '超级管理员')"); $this->username = $this->input->post('username'); $this->password = $this->input->post('password'); $this->level = 99; $query4 = $this->db->get_where('pr_users',array('username' => $this->input->post('username'))); if ($query4->num_rows() == 0) { $this->db->insert('pr_users', $this); return TRUE; } else { return FALSE; } } 其实这么写查询量很大效率又低,不过这有效的避免了上一次安装被打断之后重新安装遇到的麻烦,检测是否已经创建了某个表,是否已经有新用户了之类的,代码如下: mysql_num_rows(mysql_query("SHOW TABLES LIKE 'pr_category'")) 这句可以查询数据库中是否存在这个表,执行完如果顺利的话,将install.php改个名字,代码如下: rename('application/controllers/install.php', 'application/controllers/install.lock'); 在其他文件里加入检测install.php是否存在,如果存在的话就跳转到install.php,这样就做好了简单的安装流程了,必须放在model前,否则会提示没有数据库而不会跳转,代码如下: if (file_exists('application/controllers/install.php')) redirect('install'); 至于什么是否存在表之类的,因为CI会check而且优先级也高于我们自己写的错误提示,所以这里就不加了,完整源码(MVC),Controller代码如下: <?php class Install extends CI_Controller { function __construct() { parent::__construct(); $this->load->helper('url'); $this->load->helper('file'); } function index() { $data['title'] = '安装向导'; $this->load->helper('form'); $this->load->library('form_validation'); $this->form_validation->set_rules('hostname', '主机名', 'trim|required|xss_clean'); $this->form_validation->set_rules('rootname', '数据库用户名', 'trim|required|xss_clean'); $this->form_validation->set_rules('username', '用户名', 'trim|required|xss_clean'); $this->form_validation->set_rules('password', '密码', 'trim|required|xss_clean|md5'); $data['error'] = ''; if ($this->form_validation->run() == FALSE) { $this->load->view('install', $data); } else { $config['hostname'] = $this->input->post('hostname'); $config['username'] = $this->input->post('rootname'); $config['password'] = $this->input->post('pass'); $config['database'] = $this->input->post('book'); $config['dbdriver'] = 'mysql'; $config['dbprefix'] = ''; $config['pconnect'] = TRUE; $config['db_debug'] = TRUE; $config['cache_on'] = FALSE; $config['cachedir'] = ''; $config['char_set'] = 'utf8'; $config['dbcollat'] = 'utf8_general_ci'; $config['swap_pre'] = ''; $config['autoinit'] = TRUE; $config['stricton'] = FALSE; if ($this->load->database($config, TRUE)) { $content = "<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');n"; $content .= '$active_group'. "= 'default';n"; $content .= '$active_record'." = TRUE;n"; $content .= '$db'."['default']['hostname'] = '".$this->input->post('hostname')."';n"; $content .= '$db'."['default']['username'] = '".$this->input->post('rootname')."';n"; $content .= '$db'."['default']['password'] = '".$this->input->post('pass')."';n"; $content .= '$db'."['default']['database'] = '".$this->input->post('book')."';n"; $content .= '$db'."['default']['dbdriver'] = 'mysql';n"; $content .= '$db'."['default']['dbprefix'] = '';n"; $content .= '$db'."['default']['pconnect'] = TRUE;n"; $content .= '$db'."['default']['db_debug'] = TRUE;n"; $content .= '$db'."['default']['cache_on'] = FALSE;n"; $content .= '$db'."['default']['cachedir'] = '';n"; $content .= '$db'."['default']['char_set'] = 'utf8';n"; $content .= '$db'."['default']['dbcollat'] = 'utf8_general_ci';n"; $content .= '$db'."['default']['swap_pre'] = '';n"; $content .= '$db'."['default']['autoinit'] = TRUE;n"; $content .= '$db'."['default']['stricton'] = FALSE;"; if (write_file('application/config/database.php', $content)) { $this->load->model('install_model'); if ($this->install_model->install()) { rename('application/controllers/install.php', 'application/controllers/install.lock'); $this->load->library('session'); if (!emptyempty($this->session->userdata['login'])) { $this->session->sess_destroy(); // destroy the session } redirect('poster_admin/login', 'refresh'); } else { $data['error'] = '超级管理员用户名已存在'; $this->load->view('install', $data); } } else { $data['error'] = '安装失败，无法写入文件'; $this->load->view('install', $data); } } } } } ?> （编辑：广州站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
