- <?php
- /**
- * 助手类
- * @author www.shouce.ren
- *
- */
- class Helper
- {
- /**
- * 判断当前服务器系统
- * @return string
- */
- public static function getOS(){
- if(PATH_SEPARATOR == ':'){
- return 'Linux';
- }else{
- return 'Windows';
- }
- }
- /**
- * 当前微妙数
- * @return number
- */
- public static function microtime_float() {
- list ( $usec, $sec ) = explode ( " ", microtime () );
- return (( float ) $usec + ( float ) $sec);
- }
-
- /**
- * 切割utf-8格式的字符串(一个汉字或者字符占一个字节)
- *
- * @author zhao jinhan
- * @version v1.0.0
- *
- */
- public static function truncate_utf8_string($string, $length, $etc = '...') {
- $result = '';
- $string = html_entity_decode ( trim ( strip_tags ( $string ) ), ENT_QUOTES, 'UTF-8' );
- $strlen = strlen ( $string );
- for($i = 0; (($i < $strlen) && ($length > 0)); $i ++) {
- if ($number = strpos ( str_pad ( decbin ( ord ( substr ( $string, $i, 1 ) ) ), 8, '0', STR_PAD_LEFT ), '0' )) {
- if ($length < 1.0) {
- break;
- }
- $result .= substr ( $string, $i, $number );
- $length -= 1.0;
- $i += $number - 1;
- } else {
- $result .= substr ( $string, $i, 1 );
- $length -= 0.5;
- }
- }
- $result = htmlspecialchars ( $result, ENT_QUOTES, 'UTF-8' );
- if ($i < $strlen) {
- $result .= $etc;
- }
- return $result;
- }
-
- /**
- * 遍历文件夹
- * @param string $dir
- * @param boolean $all true表示递归遍历
- * @return array
- */
- public static function scanfDir($dir='', $all = false, &$ret = array()){
- if ( false !== ($handle = opendir ( $dir ))) {
- while ( false !== ($file = readdir ( $handle )) ) {
- if (!in_array($file, array('.', '..', '.git', '.gitignore', '.svn', '.htaccess', '.buildpath','.project'))) {
- $cur_path = $dir . '/' . $file;
- if (is_dir ( $cur_path )) {
- $ret['dirs'][] =$cur_path;
- $all && self::scanfDir( $cur_path, $all, $ret);
- } else {
- $ret ['files'] [] = $cur_path;
- }
- }
- }
- closedir ( $handle );
- }
- return $ret;
- }
-
- /**
- * 邮件发送
- * @param string $toemail
- * @param string $subject
- * @param string $message
- * @return boolean
- */
- public static function sendMail($toemail = '', $subject = '', $message = '') {
- $mailer = Yii::createComponent ( 'application.extensions.mailer.EMailer' );
-
- //邮件配置
- $mailer->SetLanguage('zh_cn');
- $mailer->Host = Yii::app()->params['emailHost']; //发送邮件服务器
- $mailer->Port = Yii::app()->params['emailPort']; //邮件端口
- $mailer->Timeout = Yii::app()->params['emailTimeout'];//邮件发送超时时间
- $mailer->ContentType = 'text/html';//设置html格式
- $mailer->SMTPAuth = true;
- $mailer->Username = Yii::app()->params['emailUserName'];
- $mailer->Password = Yii::app()->params['emailPassword'];
- $mailer->IsSMTP ();
- $mailer->From = $mailer->Username; // 发件人邮箱
- $mailer->FromName = Yii::app()->params['emailFormName']; // 发件人姓名
- $mailer->AddReplyTo ( $mailer->Username );
- $mailer->CharSet = 'UTF-8';
-
- // 添加邮件日志
- $modelMail = new MailLog ();
- $modelMail->accept = $toemail;
- $modelMail->subject = $subject;
- $modelMail->message = $message;
- $modelMail->send_status = 'waiting';
- $modelMail->save ();
- // 发送邮件
- $mailer->AddAddress ( $toemail );
- $mailer->Subject = $subject;
- $mailer->Body = $message;
-
- if ($mailer->Send () === true) {
- $modelMail->times = $modelMail->times + 1;
- $modelMail->send_status = 'success';
- $modelMail->save ();
- return true;
- } else {
- $error = $mailer->ErrorInfo;
- $modelMail->times = $modelMail->times + 1;
- $modelMail->send_status = 'failed';
- $modelMail->error = $error;
- $modelMail->save ();
- return false;
- }
- }
-
- /**
- * 判断字符串是utf-8 还是gb2312
- * @param unknown $str
- * @param string $default
- * @return string
- */
- public static function utf8_gb2312($str, $default = 'gb2312')
- {
- $str = preg_replace("/[\x01-\x7F]+/", "", $str);
- if (empty($str)) return $default;
-
- $preg = array(
- "gb2312" => "/^([\xA1-\xF7][\xA0-\xFE])+$/", //正则判断是否是gb2312
- "utf-8" => "/^[\x{4E00}-\x{9FA5}]+$/u", //正则判断是否是汉字(utf8编码的条件了),这个范围实际上已经包含了繁体中文字了
- );
-
- if ($default == 'gb2312') {
- $option = 'utf-8';
- } else {
- $option = 'gb2312';
- }
-
- if (!preg_match($preg[$default], $str)) {
- return $option;
- }
- $str = @iconv($default, $option, $str);
-
- //不能转成 $option, 说明原来的不是 $default
- if (empty($str)) {
- return $option;
- }
- return $default;
- }
- /**
- * utf-8和gb2312自动转化
- * @param unknown $string
- * @param string $outEncoding
- * @return unknown|string
- */
- public static function safeEncoding($string,$outEncoding = 'UTF-8')
- {
- $encoding = "UTF-8";
- for($i = 0; $i < strlen ( $string ); $i ++) {
- if (ord ( $string {$i} ) < 128)
- continue;
-
- if ((ord ( $string {$i} ) & 224) == 224) {
- // 第一个字节判断通过
- $char = $string {++ $i};
- if ((ord ( $char ) & 128) == 128) {
- // 第二个字节判断通过
- $char = $string {++ $i};
- if ((ord ( $char ) & 128) == 128) {
- $encoding = "UTF-8";
- break;
- }
- }
- }
- if ((ord ( $string {$i} ) & 192) == 192) {
- // 第一个字节判断通过
- $char = $string {++ $i};
- if ((ord ( $char ) & 128) == 128) {
- // 第二个字节判断通过
- $encoding = "GB2312";
- break;
- }
- }
- }
-
- if (strtoupper ( $encoding ) == strtoupper ( $outEncoding ))
- return $string;
- else
- return @iconv ( $encoding, $outEncoding, $string );
- }
- /**
- * 返回二维数组中某个键名的所有值
- * @param input $array
- * @param string $key
- * @return array
- */
- public static function array_key_values($array =array(), $key='')
- {
- $ret = array();
- foreach((array)$array as $k=>$v){
- $ret[$k] = $v[$key];
- }
- return $ret;
- }
-
-
- /**
- * 判断 文件/目录 是否可写(取代系统自带的 is_writeable 函数)
- * @param string $file 文件/目录
- * @return boolean
- */
- public static function is_writeable($file) {
- if (is_dir($file)){
- $dir = $file;
- if ($fp = @fopen("$dir/test.txt", 'w')) {
- @fclose($fp);
- @unlink("$dir/test.txt");
- $writeable = 1;
- } else {
- $writeable = 0;
- }
- } else {
- if ($fp = @fopen($file, 'a+')) {
- @fclose($fp);
- $writeable = 1;
- } else {
- $writeable = 0;
- }
- }
-
- return $writeable;
- }
- /**
- * 格式化单位
- */
- static public function byteFormat( $size, $dec = 2 ) {
- $a = array ( "B" , "KB" , "MB" , "GB" , "TB" , "PB" );
- $pos = 0;
- while ( $size >= 1024 ) {
- $size /= 1024;
- $pos ++;
- }
- return round( $size, $dec ) . " " . $a[$pos];
- }
-
- /**
- * 下拉框,单选按钮 自动选择
- *
- * @param $string 输入字符
- * @param $param 条件
- * @param $type 类型
- * selected checked
- * @return string
- */
- static public function selected( $string, $param = 1, $type = 'select' ) {
-
- $true = false;
- if ( is_array( $param ) ) {
- $true = in_array( $string, $param );
- }elseif ( $string == $param ) {
- $true = true;
- }
- $return='';
- if ( $true )
- $return = $type == 'select' ? 'selected="selected"' : 'checked="checked"';
-
- echo $return;
- }
-
- /**
- * 下载远程图片
- * @param string $url 图片的绝对url
- * @param string $filepath 文件的完整路径(例如/www/images/test) ,此函数会自动根据图片url和http头信息确定图片的后缀名
- * @param string $filename 要保存的文件名(不含扩展名)
- * @return mixed 下载成功返回一个描述图片信息的数组,下载失败则返回false
- */
- static public function downloadImage($url, $filepath, $filename) {
- //服务器返回的头信息
- $responseHeaders = array();
- //原始图片名
- $originalfilename = '';
- //图片的后缀名
- $ext = '';
- $ch = curl_init($url);
- //设置curl_exec返回的值包含Http头
- curl_setopt($ch, CURLOPT_HEADER, 1);
- //设置curl_exec返回的值包含Http内容
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
- //设置抓取跳转(http 301,302)后的页面
- curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
- //设置最多的HTTP重定向的数量
- curl_setopt($ch, CURLOPT_MAXREDIRS, 3);
-
- //服务器返回的数据(包括http头信息和内容)
- $html = curl_exec($ch);
- //获取此次抓取的相关信息
- $httpinfo = curl_getinfo($ch);
- curl_close($ch);
- if ($html !== false) {
- //分离response的header和body,由于服务器可能使用了302跳转,所以此处需要将字符串分离为 2+跳转次数 个子串
- $httpArr = explode("\r\n\r\n", $html, 2 + $httpinfo['redirect_count']);
- //倒数第二段是服务器最后一次response的http头
- $header = $httpArr[count($httpArr) - 2];
- //倒数第一段是服务器最后一次response的内容
- $body = $httpArr[count($httpArr) - 1];
- $header.="\r\n";
-
- //获取最后一次response的header信息
- preg_match_all('/([a-z0-9-_]+):\s*([^\r\n]+)\r\n/i', $header, $matches);
- if (!empty($matches) && count($matches) == 3 && !empty($matches[1]) && !empty($matches[1])) {
- for ($i = 0; $i < count($matches[1]); $i++) {
- if (array_key_exists($i, $matches[2])) {
- $responseHeaders[$matches[1][$i]] = $matches[2][$i];
- }
- }
- }
- //获取图片后缀名
- if (0 < preg_match('{(?:[^\/\\\\]+)\.(jpg|jpeg|gif|png|bmp)$}i', $url, $matches)) {
- $originalfilename = $matches[0];
- $ext = $matches[1];
- } else {
- if (array_key_exists('Content-Type', $responseHeaders)) {
- if (0 < preg_match('{image/(\w+)}i', $responseHeaders['Content-Type'], $extmatches)) {
- $ext = $extmatches[1];
- }
- }
- }
- //保存文件
- if (!empty($ext)) {
- //如果目录不存在,则先要创建目录
- if(!is_dir($filepath)){
- mkdir($filepath, 0777, true);
- }
-
- $filepath .= '/'.$filename.".$ext";
- $local_file = fopen($filepath, 'w');
- if (false !== $local_file) {
- if (false !== fwrite($local_file, $body)) {
- fclose($local_file);
- $sizeinfo = getimagesize($filepath);
- return array('filepath' => realpath($filepath), 'width' => $sizeinfo[0], 'height' => $sizeinfo[1], 'orginalfilename' => $originalfilename, 'filename' => pathinfo($filepath, PATHINFO_BASENAME));
- }
- }
- }
- }
- return false;
- }
-
-
- /**
- * 查找ip是否在某个段位里面
- * @param string $ip 要查询的ip
- * @param $arrIP 禁止的ip
- * @return boolean
- */
- public static function ipAccess($ip='0.0.0.0', $arrIP = array()){
- $access = true;
- $ip && $arr_cur_ip = explode('.', $ip);
- foreach((array)$arrIP as $key=> $value){
- if($value == '*.*.*.*'){
- $access = false; //禁止所有
- break;
- }
- $tmp_arr = explode('.', $value);
- if(($arr_cur_ip[0] == $tmp_arr[0]) && ($arr_cur_ip[1] == $tmp_arr[1])) {
- //前两段相同
- if(($arr_cur_ip[2] == $tmp_arr[2]) || ($tmp_arr[2] == '*')){
- //第三段为* 或者相同
- if(($arr_cur_ip[3] == $tmp_arr[3]) || ($tmp_arr[3] == '*')){
- //第四段为* 或者相同
- $access = false; //在禁止ip列,则禁止访问
- break;
- }
- }
- }
- }
- return $access;
- }
-
- /**
- * @param string $string 原文或者密文
- * @param string $operation 操作(ENCODE | DECODE), 默认为 DECODE
- * @param string $key 密钥
- * @param int $expiry 密文有效期, 加密时候有效, 单位 秒,0 为永久有效
- * @return string 处理后的 原文或者 经过 base64_encode 处理后的密文
- *
- * @example
- *
- * $a = authcode('abc', 'ENCODE', 'key');
- * $b = authcode($a, 'DECODE', 'key'); // $b(abc)
- *
- * $a = authcode('abc', 'ENCODE', 'key', 3600);
- * $b = authcode('abc', 'DECODE', 'key'); // 在一个小时内,$b(abc),否则 $b 为空
- */
- public static function authcode($string, $operation = 'DECODE', $key = '', $expiry = 3600) {
-
- $ckey_length = 4;
- // 随机密钥长度 取值 0-32;
- // 加入随机密钥,可以令密文无任何规律,即便是原文和密钥完全相同,加密结果也会每次不同,增大po,jie难度。
- // 取值越大,密文变动规律越大,密文变化 = 16 的 $ckey_length 次方
- // 当此值为 0 时,则不产生随机密钥
-
-
- $key = md5 ( $key ? $key : 'key' ); //这里可以填写默认key值
- $keya = md5 ( substr ( $key, 0, 16 ) );
- $keyb = md5 ( substr ( $key, 16, 16 ) );
- $keyc = $ckey_length ? ($operation == 'DECODE' ? substr ( $string, 0, $ckey_length ) : substr ( md5 ( microtime () ), - $ckey_length )) : '';
-
- $cryptkey = $keya . md5 ( $keya . $keyc );
- $key_length = strlen ( $cryptkey );
-
- $string = $operation == 'DECODE' ? base64_decode ( substr ( $string, $ckey_length ) ) : sprintf ( '%010d', $expiry ? $expiry + time () : 0 ) . substr ( md5 ( $string . $keyb ), 0, 16 ) . $string;
- $string_length = strlen ( $string );
-
- $result = '';
- $box = range ( 0, 255 );
-
- $rndkey = array ();
- for($i = 0; $i <= 255; $i ++) {
- $rndkey [$i] = ord ( $cryptkey [$i % $key_length] );
- }
-
- for($j = $i = 0; $i < 256; $i ++) {
- $j = ($j + $box [$i] + $rndkey [$i]) % 256;
- $tmp = $box [$i];
- $box [$i] = $box [$j];
- $box [$j] = $tmp;
- }
-
- for($a = $j = $i = 0; $i < $string_length; $i ++) {
- $a = ($a + 1) % 256;
- $j = ($j + $box [$a]) % 256;
- $tmp = $box [$a];
- $box [$a] = $box [$j];
- $box [$j] = $tmp;
- $result .= chr ( ord ( $string [$i] ) ^ ($box [($box [$a] + $box [$j]) % 256]) );
- }
-
- if ($operation == 'DECODE') {
- if ((substr ( $result, 0, 10 ) == 0 || substr ( $result, 0, 10 ) - time () > 0) && substr ( $result, 10, 16 ) == substr ( md5 ( substr ( $result, 26 ) . $keyb ), 0, 16 )) {
- return substr ( $result, 26 );
- } else {
- return '';
- }
- } else {
- return $keyc . str_replace ( '=', '', base64_encode ( $result ) );
- }
-
- }
-
- public static function gbkToUtf8($str){
- return iconv("GBK", "UTF-8", $str);
- }
-
- /**
- * 取得输入目录所包含的所有目录和文件
- * 以关联数组形式返回
- * author: flynetcn
- */
- static public function deepScanDir($dir)
- {
- $fileArr = array();
- $dirArr = array();
- $dir = rtrim($dir, '//');
- if(is_dir($dir)){
- $dirHandle = opendir($dir);
- while(false !== ($fileName = readdir($dirHandle))){
- $subFile = $dir . DIRECTORY_SEPARATOR . $fileName;
- if(is_file($subFile)){
- $fileArr[] = $subFile;
- } elseif (is_dir($subFile) && str_replace('.', '', $fileName)!=''){
- $dirArr[] = $subFile;
- $arr = self::deepScanDir($subFile);
- $dirArr = array_merge($dirArr, $arr['dir']);
- $fileArr = array_merge($fileArr, $arr['file']);
- }
- }
- closedir($dirHandle);
- }
- return array('dir'=>$dirArr, 'file'=>$fileArr);
- }
-
-
- /**
- * 取得输入目录所包含的所有文件
- * 以数组形式返回
- * author: flynetcn
- */
- static public function get_dir_files($dir)
- {
- if (is_file($dir)) {
- return array($dir);
- }
- $files = array();
- if (is_dir($dir) && ($dir_p = opendir($dir))) {
- $ds = DIRECTORY_SEPARATOR;
- while (($filename = readdir($dir_p)) !== false) {
- if ($filename=='.' || $filename=='..') { continue; }
- $filetype = filetype($dir.$ds.$filename);
- if ($filetype == 'dir') {
- $files = array_merge($files, self::get_dir_files($dir.$ds.$filename));
- } elseif ($filetype == 'file') {
- $files[] = $dir.$ds.$filename;
- }
- }
- closedir($dir_p);
- }
- return $files;
- }
-
- /**
- * 删除文件夹及其文件夹下所有文件
- */
- public static function deldir($dir) {
- //先删除目录下的文件:
- $dh=opendir($dir);
- while ($file=readdir($dh)) {
- if($file!="." && $file!="..") {
- $fullpath=$dir."/".$file;
- if(!is_dir($fullpath)) {
- unlink($fullpath);
- } else {
- self::deldir($fullpath);
- }
- }
- }
-
- closedir($dh);
- //删除当前文件夹:
- if(rmdir($dir)) {
- return true;
- } else {
- return false;
- }
- }
-
- /**
- * js 弹窗并且跳转
- * @param string $_info
- * @param string $_url
- * @return js
- */
- static public function alertLocation($_info, $_url) {
- echo "<script type='text/javascript'>alert('$_info');location.href='$_url';</script>";
- exit();
- }
-
- /**
- * js 弹窗返回
- * @param string $_info
- * @return js
- */
- static public function alertBack($_info) {
- echo "<script type='text/javascript'>alert('$_info');history.back();</script>";
- exit();
- }
-
- /**
- * 页面跳转
- * @param string $url
- * @return js
- */
- static public function headerUrl($url) {
- echo "<script type='text/javascript'>location.href='{$url}';</script>";
- exit();
- }
-
- /**
- * 弹窗关闭
- * @param string $_info
- * @return js
- */
- static public function alertClose($_info) {
- echo "<script type='text/javascript'>alert('$_info');close();</script>";
- exit();
- }
-
- /**
- * 弹窗
- * @param string $_info
- * @return js
- */
- static public function alert($_info) {
- echo "<script type='text/javascript'>alert('$_info');</script>";
- exit();
- }
-
- /**
- * 系统基本参数上传图片专用
- * @param string $_path
- * @return null
- */
- static public function sysUploadImg($_path) {
- echo '<script type="text/javascript">document.getElementById("logo").value="'.$_path.'";</script>';
- echo '<script type="text/javascript">document.getElementById("pic").src="'.$_path.'";</script>';
- echo '<script type="text/javascript">$("#loginpop1").hide();</script>';
- echo '<script type="text/javascript">$("#bgloginpop2").hide();</script>';
- }
-
- /**
- * html过滤
- * @param array|object $_date
- * @return string
- */
- static public function htmlString($_date) {
- if (is_array($_date)) {
- foreach ($_date as $_key=>$_value) {
- $_string[$_key] = self::htmlString($_value); //递归
- }
- } elseif (is_object($_date)) {
- foreach ($_date as $_key=>$_value) {
- $_string->$_key = self::htmlString($_value); //递归
- }
- } else {
- $_string = htmlspecialchars($_date);
- }
- return $_string;
- }
-
- /**
- * 数据库输入过滤
- * @param string $_data
- * @return string
- */
- static public function mysqlString($_data) {
- $_data = trim($_data);
- return !GPC ? addcslashes($_data) : $_data;
- }
-
- /**
- * 清理session
- */
- static public function unSession() {
- if (session_start()) {
- session_destroy();
- }
- }
-
- /**
- * 验证是否为空
- * @param string $str
- * @param string $name
- * @return bool (true or false)
- */
- static function validateEmpty($str, $name) {
- if (empty($str)) {
- self::alertBack('警告:' .$name . '不能为空!');
- }
- }
-
- /**
- * 验证是否相同
- * @param string $str1
- * @param string $str2
- * @param string $alert
- * @return JS
- */
- static function validateAll($str1, $str2, $alert) {
- if ($str1 != $str2) self::alertBack('警告:' .$alert);
- }
-
- /**
- * 验证ID
- * @param Number $id
- * @return JS
- */
- static function validateId($id) {
- if (empty($id) || !is_numeric($id)) self::alertBack('警告:参数错误!');
- }
-
- /**
- * 格式化字符串
- * @param string $str
- * @return string
- */
- static public function formatStr($str) {
- $arr = array(' ', ' ', '&', '@', '#', '%', '\'', '"', '\\', '/', '.', ',', '$', '^', '*', '(', ')', '[', ']', '{', '}', '|', '~', '`', '?', '!', ';', ':', '-', '_', '+', '=');
- foreach ($arr as $v) {
- $str = str_replace($v, '', $str);
- }
- return $str;
- }
-
- /**
- * 格式化时间
- * @param int $time 时间戳
- * @return string
- */
- static public function formatDate($time='default') {
- $date = $time == 'default' ? date('Y-m-d H:i:s', time()) : date('Y-m-d H:i:s', $time);
- return $date;
- }
-
- /**
- * 获得真实IP地址
- * @return string
- */
- static public function realIp() {
- static $realip = NULL;
- if ($realip !== NULL) return $realip;
- if (isset($_SERVER)) {
- if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
- $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
- foreach ($arr AS $ip) {
- $ip = trim($ip);
- if ($ip != 'unknown') {
- $realip = $ip;
- break;
- }
- }
- } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
- $realip = $_SERVER['HTTP_CLIENT_IP'];
- } else {
- if (isset($_SERVER['REMOTE_ADDR'])) {
- $realip = $_SERVER['REMOTE_ADDR'];
- } else {
- $realip = '0.0.0.0';
- }
- }
- } else {
- if (getenv('HTTP_X_FORWARDED_FOR')) {
- $realip = getenv('HTTP_X_FORWARDED_FOR');
- } elseif (getenv('HTTP_CLIENT_IP')) {
- $realip = getenv('HTTP_CLIENT_IP');
- } else {
- $realip = getenv('REMOTE_ADDR');
- }
- }
- preg_match('/[\d\.]{7,15}/', $realip, $onlineip);
- $realip = !empty($onlineip[0]) ? $onlineip[0] : '0.0.0.0';
- return $realip;
- }
-
- /**
- * 加载 Smarty 模板
- * @param string $html
- * @return null;
- */
- static public function display() {
- global $tpl;$html = null;
- $htmlArr = explode('/', $_SERVER[SCRIPT_NAME]);
- $html = str_ireplace('.php', '.html', $htmlArr[count($htmlArr)-1]);
- $dir = dirname($_SERVER[SCRIPT_NAME]);
- $firstStr = substr($dir, 0, 1);
- $endStr = substr($dir, strlen($dir)-1, 1);
- if ($firstStr == '/' || $firstStr == '\\') $dir = substr($dir, 1);
- if ($endStr != '/' || $endStr != '\\') $dir = $dir . '/';
- $tpl->display($dir.$html);
- }
-
- /**
- * 创建目录
- * @param string $dir
- */
- static public function createDir($dir) {
- if (!is_dir($dir)) {
- mkdir($dir, 0777);
- }
- }
-
- /**
- * 创建文件(默认为空)
- * @param unknown_type $filename
- */
- static public function createFile($filename) {
- if (!is_file($filename)) touch($filename);
- }
-
- /**
- * 正确获取变量
- * @param string $param
- * @param string $type
- * @return string
- */
- static public function getData($param, $type='post') {
- $type = strtolower($type);
- if ($type=='post') {
- return self::mysqlString(trim($_POST[$param]));
- } elseif ($type=='get') {
- return self::mysqlString(trim($_GET[$param]));
- }
- }
-
- /**
- * 删除文件
- * @param string $filename
- */
- static public function delFile($filename) {
- if (file_exists($filename)) unlink($filename);
- }
-
- /**
- * 删除目录
- * @param string $path
- */
- static public function delDir($path) {
- if (is_dir($path)) rmdir($path);
- }
-
- /**
- * 删除目录及地下的全部文件
- * @param string $dir
- * @return bool
- */
- static public function delDirOfAll($dir) {
- //先删除目录下的文件:
- if (is_dir($dir)) {
- $dh=opendir($dir);
- while (!!$file=readdir($dh)) {
- if($file!="." && $file!="..") {
- $fullpath=$dir."/".$file;
- if(!is_dir($fullpath)) {
- unlink($fullpath);
- } else {
- self::delDirOfAll($fullpath);
- }
- }
- }
- closedir($dh);
- //删除当前文件夹:
- if(rmdir($dir)) {
- return true;
- } else {
- return false;
- }
- }
- }
-
- /**
- * 验证登陆
- */
- static public function validateLogin() {
- if (empty($_SESSION['admin']['user'])) header('Location:/admin/');
- }
-
- /**
- * 给已经存在的图片添加水印
- * @param string $file_path
- * @return bool
- */
- static public function addMark($file_path) {
- if (file_exists($file_path) && file_exists(MARK)) {
- //求出上传图片的名称后缀
- $ext_name = strtolower(substr($file_path, strrpos($file_path, '.'), strlen($file_path)));
- //$new_name='jzy_' . time() . rand(1000,9999) . $ext_name ;
- $store_path = ROOT_PATH . UPDIR;
- //求上传图片高宽
- $imginfo = getimagesize($file_path);
- $width = $imginfo[0];
- $height = $imginfo[1];
- //添加图片水印
- switch($ext_name) {
- case '.gif':
- $dst_im = imagecreatefromgif($file_path);
- break;
- case '.jpg':
- $dst_im = imagecreatefromjpeg($file_path);
- break;
- case '.png':
- $dst_im = imagecreatefrompng($file_path);
- break;
- }
- $src_im = imagecreatefrompng(MARK);
- //求水印图片高宽
- $src_imginfo = getimagesize(MARK);
- $src_width = $src_imginfo[0];
- $src_height = $src_imginfo[1];
- //求出水印图片的实际生成位置
- $src_x = $width - $src_width - 10;
- $src_y = $height - $src_height - 10;
- //新建一个真彩色图像
- $nimage = imagecreatetruecolor($width, $height);
- //拷贝上传图片到真彩图像
- imagecopy($nimage, $dst_im, 0, 0, 0, 0, $width, $height);
- //按坐标位置拷贝水印图片到真彩图像上
- imagecopy($nimage, $src_im, $src_x, $src_y, 0, 0, $src_width, $src_height);
- //分情况输出生成后的水印图片
- switch($ext_name) {
- case '.gif':
- imagegif($nimage, $file_path);
- break;
- case '.jpg':
- imagejpeg($nimage, $file_path);
- break;
- case '.png':
- imagepng($nimage, $file_path);
- break;
- }
- //释放资源
- imagedestroy($dst_im);
- imagedestroy($src_im);
- unset($imginfo);
- unset($src_imginfo);
- //移动生成后的图片
- @move_uploaded_file($file_path, ROOT_PATH.UPDIR . $file_path);
- }
- }
-
- /**
- * 中文截取2,单字节截取模式
- * @access public
- * @param string $str 需要截取的字符串
- * @param int $slen 截取的长度
- * @param int $startdd 开始标记处
- * @return string
- */
- static public function cn_substr($str, $slen, $startdd=0){
- $cfg_soft_lang = PAGECHARSET;
- if($cfg_soft_lang=='utf-8') {
- return self::cn_substr_utf8($str, $slen, $startdd);
- }
- $restr = '';
- $c = '';
- $str_len = strlen($str);
- if($str_len < $startdd+1) {
- return '';
- }
- if($str_len < $startdd + $slen || $slen==0) {
- $slen = $str_len - $startdd;
- }
- $enddd = $startdd + $slen - 1;
- for($i=0;$i<$str_len;$i++) {
- if($startdd==0) {
- $restr .= $c;
- } elseif($i > $startdd) {
- $restr .= $c;
- }
- if(ord($str[$i])>0x80) {
- if($str_len>$i+1) {
- $c = $str[$i].$str[$i+1];
- }
- $i++;
- } else {
- $c = $str[$i];
- }
- if($i >= $enddd) {
- if(strlen($restr)+strlen($c)>$slen) {
- break;
- } else {
- $restr .= $c;
- break;
- }
- }
- }
- return $restr;
- }
-
- /**
- * utf-8中文截取,单字节截取模式
- *
- * @access public
- * @param string $str 需要截取的字符串
- * @param int $slen 截取的长度
- * @param int $startdd 开始标记处
- * @return string
- */
- static public function cn_substr_utf8($str, $length, $start=0) {
- if(strlen($str) < $start+1) {
- return '';
- }
- preg_match_all("/./su", $str, $ar);
- $str = '';
- $tstr = '';
- //为了兼容mysql4.1以下版本,与数据库varchar一致,这里使用按字节截取
- for($i=0; isset($ar[0][$i]); $i++) {
- if(strlen($tstr) < $start) {
- $tstr .= $ar[0][$i];
- } else {
- if(strlen($str) < $length + strlen($ar[0][$i]) ) {
- $str .= $ar[0][$i];
- } else {
- break;
- }
- }
- }
- return $str;
- }
-
- /**
- * 删除图片,根据图片ID
- * @param int $image_id
- */
- static function delPicByImageId($image_id) {
- $db_name = PREFIX . 'images i';
- $m = new Model();
- $data = $m->getOne($db_name, "i.id={$image_id}", "i.path as p, i.big_img as b, i.small_img as s");
- foreach ($data as $v) {
- @self::delFile(ROOT_PATH . $v['p']);
- @self::delFile(ROOT_PATH . $v['b']);
- @self::delFile(ROOT_PATH . $v['s']);
- }
- $m->del(PREFIX . 'images', "id={$image_id}");
- unset($m);
- }
-
- /**
- * 图片等比例缩放
- * @param resource $im 新建图片资源(imagecreatefromjpeg/imagecreatefrompng/imagecreatefromgif)
- * @param int $maxwidth 生成图像宽
- * @param int $maxheight 生成图像高
- * @param string $name 生成图像名称
- * @param string $filetype文件类型(.jpg/.gif/.png)
- */
- static public function resizeImage($im, $maxwidth, $maxheight, $name, $filetype) {
- $pic_width = imagesx($im);
- $pic_height = imagesy($im);
- if(($maxwidth && $pic_width > $maxwidth) || ($maxheight && $pic_height > $maxheight)) {
- if($maxwidth && $pic_width>$maxwidth) {
- $widthratio = $maxwidth/$pic_width;
- $resizewidth_tag = true;
- }
- if($maxheight && $pic_height>$maxheight) {
- $heightratio = $maxheight/$pic_height;
- $resizeheight_tag = true;
- }
- if($resizewidth_tag && $resizeheight_tag) {
- if($widthratio<$heightratio)
- $ratio = $widthratio;
- else
- $ratio = $heightratio;
- }
- if($resizewidth_tag && !$resizeheight_tag)
- $ratio = $widthratio;
- if($resizeheight_tag && !$resizewidth_tag)
- $ratio = $heightratio;
- $newwidth = $pic_width * $ratio;
- $newheight = $pic_height * $ratio;
- if(function_exists("imagecopyresampled")) {
- $newim = imagecreatetruecolor($newwidth,$newheight);
- imagecopyresampled($newim,$im,0,0,0,0,$newwidth,$newheight,$pic_width,$pic_height);
- } else {
- $newim = imagecreate($newwidth,$newheight);
- imagecopyresized($newim,$im,0,0,0,0,$newwidth,$newheight,$pic_width,$pic_height);
- }
- $name = $name.$filetype;
- imagejpeg($newim,$name);
- imagedestroy($newim);
- } else {
- $name = $name.$filetype;
- imagejpeg($im,$name);
- }
- }
-
- /**
- * 下载文件
- * @param string $file_path 绝对路径
- */
- static public function downFile($file_path) {
- //判断文件是否存在
- $file_path = iconv('utf-8', 'gb2312', $file_path); //对可能出现的中文名称进行转码
- if (!file_exists($file_path)) {
- exit('文件不存在!');
- }
- $file_name = basename($file_path); //获取文件名称
- $file_size = filesize($file_path); //获取文件大小
- $fp = fopen($file_path, 'r'); //以只读的方式打开文件
- header("Content-type: application/octet-stream");
- header("Accept-Ranges: bytes");
- header("Accept-Length: {$file_size}");
- header("Content-Disposition: attachment;filename={$file_name}");
- $buffer = 1024;
- $file_count = 0;
- //判断文件是否结束
- while (!feof($fp) && ($file_size-$file_count>0)) {
- $file_data = fread($fp, $buffer);
- $file_count += $buffer;
- echo $file_data;
- }
- fclose($fp); //关闭文件
- }
- }
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