/lib/function.php

<?php 



/**

 * 对象自动加载魔法方法

 * Enter description here ...

 * @param string $classname

 */

function __autoload($classname){

    if(strtolower(substr($classname, -10,10)) === 'controller'){

        $filename = CONTROLLER_DIR.$classname.".php";

        if (file_exists($filename)){

            include_once $filename;

        }else{

            exit($filename.' is not exists.');

        }

    }elseif (strtolower(substr($classname, -5,5)) == 'model'){

        $classname = substr($classname, 0,-5);

        $filename = MODEL_DIR.$classname.".model.php";

        if (file_exists($filename)){

            include_once $filename;

        }else{

            exit($filename.' is not exists.');

        }

    }

}



// 去除代码中的空白和注释

function strip_whitespace($content) {

    $stripStr = '';

    //分析php源码

    $tokens =   token_get_all ($content);

    $last_space = false;

    for ($i = 0, $j = count ($tokens); $i < $j; $i++)

    {

        if (is_string ($tokens[$i]))

        {

            $last_space = false;

            $stripStr .= $tokens[$i];

        }

        else

        {

            switch ($tokens[$i][0])

            {

                //过滤各种PHP注释

                case T_COMMENT:

                case T_DOC_COMMENT:

                    break;

                //过滤空格

                case T_WHITESPACE:

                    if (!$last_space)

                    {

                        $stripStr .= ' ';

                        $last_space = true;

                    }

                    break;

                default:

                    $last_space = false;

                    $stripStr .= $tokens[$i][1];

            }

        }

    }

    return $stripStr;

}



/**

 * 实例化一个Model

 * Enter description here ...

 * @param unknown_type $model

 */

function D($model = ''){

	static $_model_instance = array();

	

	if(empty($model))

		return new Model();

	

	$indentify = md5($model);



	$model_file = MODEL_DIR.$model.'.model.php';

	

	if(isset($_model_instance[$indentify]))

		return $_model_instance[$indentify];

	

	if(file_exists($model_file)){

		include_once $model_file;

		$_model = ucfirst($model).'Model';

		$_model_instance[$indentify] = new $_model;

		return $_model_instance[$indentify];

	}else{

	    return new Model($model);

	}

	exit('the '.$model.' model is not exists.');

}







/**

 * 字符串特殊字符转义函数

 * Enter description here ...

 * @param unknown_type $string

 */

function maddslashes($string){

	!defined('MAGIC_QUOTES_GPC') && define('MAGIC_QUOTES_GPC', get_magic_quotes_gpc());

	if(!MAGIC_QUOTES_GPC) {

		if(is_array($string)) {

			foreach($string as $key => $val) {

				$string[$key] = maddslashes($val);

			}

		} else {

			$string = htmlentities($string,ENT_QUOTES,'UTF-8');

			//$string = addslashes($string);

		}

	}

	return $string;

}



/**

 * 变量类型转换

 * Enter description here ...

 * @param mixed $data

 * @param string $type  string|bool|int|float|double

 */

function convertType($data,$type = "string"){

    if(is_array($data)) {

		foreach($data as $key => $val) {

			$data[$key] = convertType($val,$type);

		}

	} else {

	    switch ($type){

	        case "string":

	            $data = (string) $data;break;

	        case "boolean":

	        case "bool":

	            $data = (boolean) $data;break;

	        case "array":

	            $data = (array) $data;break;

	        case "object":

	            $data = (object) $data;break;

	        case "integer":

	        case "int":

	            $data = (integer) $data;break;

	        case "unset":

	        default:

	            $data = (unset) $data;break;

	    }

	}

	return $data;

}





/**

* 随机字符串

*/

function randStr($len)

{ 

    $chars='0123456789abcdefghijklmnopqrstuvwxyz'; // characters to build the password from 

    $string=""; 

    for($i=$len;$i>0;$i--) 

    {

        $position=rand()%strlen($chars);

        $string.=substr($chars,$position,1); 

    }

    return $string; 

}





// 获取客户端IP地址

function get_client_ip(){

   if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))

       $ip = getenv("HTTP_CLIENT_IP");

   else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))

       $ip = getenv("HTTP_X_FORWARDED_FOR");

   else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))

       $ip = getenv("REMOTE_ADDR");

   else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))

       $ip = $_SERVER['REMOTE_ADDR'];

   else

       $ip = "unknown";

   return($ip);

}







function getIpLong(){

	$ip = get_client_ip();

	if ($ip != 'unknown'){

		return sprintf("%.u",ip2long($ip));

	}

	return 0;

}



/**

 * 检测用户名是否已字母开始，是否只包含字母数字和下划线,最短3位，最长20位

 * Enter description here ...

 * @param string $username

 */

function check_username($username){

    $pattern = '/^[\x80-\xffa-zA-z0-9][\x80-\xffa-zA-Z0-9-_:]{2,42}$/';

    if (!preg_match($pattern, $username)){

        return false;

    }

    return $mac;

}



/**

 * 发送邮件的方法

 * Enter description here ...

 * @param string $mail

 * @param array $data   $data = array('title'=>'邮件标题','content'=>'邮件正文');

 */

function send_mail($mail,$data){



	$smtpserver 	= 	SENDMAIL_STMP;//SMTP服务器

	$smtpserverport =	25;//SMTP服务器端口

	$smtpusermail 	= 	SENDMAIL_USERMAIL;//SMTP服务器的用户邮箱

	$smtpuser 		= 	SENDMAIL_USERNAME;//SMTP服务器的用户帐号

	$smtppass 		= 	SENDMAIL_PASSWORD;//SMTP服务器的用户密码



	$smtpemailto 	= 	$mail;//发送给谁

	$mailsubject 	= 	$data['title'];//邮件主题

	$mailtime		=	date("Y-m-d H:i:s");

	

	$utfmailbody	=	$data['content'];//转换邮件编码 

	$mailtype 		= 	"HTML";//邮件格式（HTML/TXT）,TXT为文本邮件



	include(LIB_DIR."Sendmail.class.php");//发送邮件类

	$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//这里面的一个true是表示使用身份验证,否则不使用身份验证.

	$smtp->debug = false;//是否显示发送的调试信息 FALSE or TRUE

	if($smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $utfmailbody, $mailtype))

	{

		return 1;

	}else

	{

		return -2;//发送失败

	}

}



/**

 * 安全验证，验证码为sessionID和约定的token的md5码

 * Enter description here ...

 */

function sessionToken()

{

    if(!isset($_REQUEST['token']) || TOKEN!=$_REQUEST['token']){

    echo json_encode(array('state'=>false,'msg'=>'forbidden to access!'));

    exit;

    }

}

/**

 * 记录系统日志

 * Enter description here ...

 * @param string $FileName

 */

function sylog($message,$type = "ERROR")

{

    file_put_contents(DATA_DIR.'coco.log', '[ERROR:'.date('Y-m-d H:i:s').']'.$message.'\n\r',FILE_APPEND);

}

//截取utf8字符串 

function utf8Substr($str, $from, $len) 

{ 

    return preg_replace('#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$from.'}'. 

'((?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$len.'}).*#s', 

'$1',$str); 

}

/**

 * 打印执行过的sql

 * Enter description here ...

 * @param string $FileName

 */

function dumpsql()

{

    if (!IS_DEPLOY)

    {

	global $debugsql;

	echo '<br/>------------------------the sqls you have excuted----------------------------------<br/>';

	echo $debugsql;

    }

}