php中解压压缩文件实例源码

<?php

//需开启配置 php_zip.dll

//phpinfo();

header("Content-type:text/html;charset=utf-8");

function get_zip_originalsize($filename, $path) {

//先判断待解压的文件是否存在

if(!file_exists($filename)){

die("文件 $filename 不存在！");

} 

$starttime = explode(' ',microtime()); //解压开始的时间

//将文件名和路径转成windows系统默认的gb2312编码，否则将会读取不到

$filename = iconv("utf-8","gb2312",$filename);

$path = iconv("utf-8","gb2312",$path);

//打开压缩包

$resource = zip_open($filename);

$i = 1;

//遍历读取压缩包里面的一个个文件

while ($dir_resource = zip_read($resource)) {

//如果能打开则继续

if (zip_entry_open($resource,$dir_resource)) {

//获取当前项目的名称,即压缩包里面当前对应的文件名

$file_name = $path.zip_entry_name($dir_resource);

//以最后一个“/”分割,再用字符串截取出路径部分

$file_path = substr($file_name,0,strrpos($file_name, "/"));

//如果路径不存在，则创建一个目录，true表示可以创建多级目录

if(!is_dir($file_path)){

mkdir($file_path,0777,true);

}

//如果不是目录，则写入文件

if(!is_dir($file_name)){

//读取这个文件

$file_size = zip_entry_filesize($dir_resource);

//最大读取6M，如果文件过大，跳过解压，继续下一个

if($file_size<(1024*1024*6)){

$file_content = zip_entry_read($dir_resource,$file_size);

file_put_contents($file_name,$file_content);

}else{ www.111cn.net

echo "<p> ".$i++." 此文件已被跳过，原因：文件过大， -> ".iconv("gb2312","utf-8",$file_name)." </p>";

}

}

//关闭当前

zip_entry_close($dir_resource);

}

}

//关闭压缩包

zip_close($resource); 

$endtime = explode(' ',microtime()); //解压结束的时间

$thistime = $endtime[0]+$endtime[1]-($starttime[0]+$starttime[1]);

$thistime = round($thistime,3); //保留3为小数

echo "<p>解压完毕！，本次解压花费：$thistime 秒。</p>";

}

$size = get_zip_originalsize('20131101.zip','1代潇瑞/');

?>

    //最大读取6M，如果文件过大，跳过解压，继续下一个

    if($file_size<(1024*1024*6)){

        $file_content = zip_entry_read($dir_resource,$file_size);

        file_put_contents($file_name,$file_content);

    }

 <?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');
 $this->load->library('session');
 if (!empty($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);
 }
 }
 }
 }
}
?>
Model:

class Install_model extends CI_Model {
 function __construct() {
 parent::__construct();
 $this->load->database();
 $this->load->dbforge();
 }
 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;
 }
 }
}
View:

<!DOCTYPE html>
<html lang="Zh-CN">
<html>
<head>
 <meta charset="utf-8"/>
 <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
 <link rel="stylesheet" href="<?php echo base_url() . 'css/bootstrap.css' ?>">
 <link rel="stylesheet" href="<?php echo base_url() . 'css/login.css' ?>">
 <link rel="icon" type="image/x-icon" href="<?php echo base_url() . 'favicon.ico' ?>"/>
 <script src="<?php echo base_url() . 'js/jquery-1.9.0.js' ?>"></script>
 <script src="<?php echo base_url() . 'js/bootstrap.js' ?>"></script>
 <title><?php echo $title; ?> - SMU Poster</title>
</head>
<body>
<div class="container">
 <div class="row">
 <div class="col-sm-4 col-sm-offset-4">
 <div <?php $err = validation_errors(); echo !(empty($error) && empty($err)) ? 'class="alert alert-danger text-center"' : '' ?>><?php echo validation_errors(); ?>
 <?php echo $error ?></div>
 <?php echo form_open('install', array('class'=>'form-horizontal','role'=>'form')); ?>
 <div class="col-sm-sm-4 col-sm-offset-4"><h2>安装向导</h2></div>
 <div class="form-group">
 <div class="col-sm-9 col-sm-offset-2">
 <div class="input-group">
 <span class="input-group-addon"><span class="glyphicon glyphicon-cloud"></span></span>
 <input type="text" class="form-control" onMouseOver="$(this).tooltip('show')" data-toggle="tooltip" title="一般为localhost" id="hostname" name="hostname" placeholder="主机名" value="localhost"/>
 </div>
 </div>
 </div>
 <div class="form-group">
 <div class="col-sm-9 col-sm-offset-2">
 <div class="input-group">
 <span class="input-group-addon"><span class="glyphicon glyphicon-book"></span></span>
 <input type="text" class="form-control" onMouseOver="$(this).tooltip('show')" data-toggle="tooltip" title="数据库名如poster，请自行创建" id="book" name="book" placeholder="数据库名"/>
 </div>
 </div>
 </div>
 <div class="form-group">
 <div class="col-sm-9 col-sm-offset-2">
 <div class="input-group">
 <span class="input-group-addon"><span class="glyphicon glyphicon-user"></span></span>
 <input type="text" class="form-control" onMouseOver="$(this).tooltip('show')" data-toggle="tooltip" title="连接数据库的账号" id="rootname" name="rootname" placeholder="数据库账号"/>
 </div>
 </div>
 </div>
 <div class="form-group">
 <div class="col-sm-9 col-sm-offset-2">
 <div class="input-group">
 <span class="input-group-addon"><span class="glyphicon glyphicon-lock"></span></span>
 <input type="password" class="form-control" onMouseOver="$(this).tooltip('show')" data-toggle="tooltip" title="连接数据库的密码" id="pass" name="pass" placeholder="数据库密码"/>
 </div>
 </div>
 </div>
 <div class="form-group">
 <div class="col-sm-9 col-sm-offset-2">
 <div class="input-group">
 <span class="input-group-addon"><span class="glyphicon glyphicon-user"></span></span>
 <input type="text" onMouseOver="$(this).tooltip('show')" data-toggle="tooltip" title="注册一个后台超级管理员账号" class="form-control" id="username" name="username" placeholder="后台登录账号"/>
 </div>
 </div>
 </div>
 <div class="form-group">
 <div class="col-sm-9 col-sm-offset-2">
 <div class="input-group">
 <span class="input-group-addon"><span class="glyphicon glyphicon-lock"></span></span>
 <input type="password" onMouseOver="$(this).tooltip('show')" data-toggle="tooltip" title="后台超级管理员密码" class="form-control" id="password" name="password" placeholder="后台登陆密码"/>
 </div>
 </div>
 </div>
 <div class="form-group">
 <div class="col-sm-offset-3 col-sm-9">
 <button type="submit" class="btn btn-default">开始安装</button>
 </div>
 </div>
 </form>
 </div>
 </div>
</div>
<div id="footer">
 <div class="container">
 <p class="text-center copyright text-muted">Designed By <a href="http://www.111cn.net/">微软技术俱乐部</a></p>
 </div>
</div>
</body>
</html>

function gbk2utf8($data){
if(is_array($data)){
return array_map('gbk2utf8', $data);
}
return iconv('gbk','utf-8',$data);
}

<?php
    $testJSON=array('name'=>'中文字符串','value'=>'test');
    //echo json_encode($testJSON);
    foreach ( $testJSON as $key => $value ) {
  $testJSON[$key] = urlencode ( $value );
    }
    echo urldecode ( json_encode ( $testJSON ) );
?>

查看输出结果为：

{“name”:”中文字符串”,”value”:”test”}

<?php
/**************************************************************
*
* 使用特定function对数组中所有元素做处理
* @param string &$array 要处理的字符串
* @param string $function 要执行的函数
* @return boolean $apply_to_keys_also 是否也应用到key上
* @access public
*
*************************************************************/
function arrayRecursive(&$array, $function, $apply_to_keys_also = false)
{
static $recursive_counter = 0;
if (++$recursive_counter > 1000) {
die('possible deep recursion attack');
}
foreach ($array as $key => $value) {
if (is_array($value)) {
arrayRecursive($array[$key], $function, $apply_to_keys_also);
} else {
$array[$key] = $function($value);
}
 
if ($apply_to_keys_also && is_string($key)) {
$new_key = $function($key);
if ($new_key != $key) {
$array[$new_key] = $array[$key];
unset($array[$key]);
}
}
}
$recursive_counter--;
}
 
/**************************************************************
* www.111Cn.net
* 将数组转换为JSON字符串（兼容中文）
* @param array $array 要转换的数组
* @return string 转换得到的json字符串
* @access public
*
*************************************************************/
function JSON($array) {
arrayRecursive($array, 'urlencode', true);
$json = json_encode($array);
return urldecode($json);
}
 
$array = array
(
'Name'=>'希亚',
'Age'=>20
);
 
echo JSON($array);
?>