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PHP容易MVC架构


PHP简单MVC架构

由于需要搭建一个简单的框架来进行API接口开发,所以简单的mvc框架当然是首选.最原始,最简洁的mvc框架.下面来介绍下.

        一. 项目目录结构:

app 
|-controller    存放控制器文件 
|-model        存放模型文件 
|-view        存放视图文件    

core
|-lib        存放自定义类库 
|-config    存放配置文件 
|--config.php   系统配置文件 

|--conn.php   数据库连接文件 

|--db_config.php   数据库配置文件 
|-mysql_db.php    数据库类文件 

|-runtime    缓存文件

db_caches 数据库缓存文件

logs日志文件

|-index.php    入口文件 

| -dispatcher.php

| -loader.php

| -router.php

二.项目架构

1.先介绍index.php,附源码:

,即调用initializer类的一个静态函数initialize,因为我们在ini.php,设置了include_path,以及定义了__autoload,所以程序会自动在core/main目录查找initializer.php.
$router = loader::load("router");//加载URL处理文件,对url进行解析--加载loader函数的静态函数load
dispatcher::dispatch($router);//router.php文件,这个文件的作用就是映射URL,对URL进行解析.根据解析到的URL参数加载相关controller及action
?>


2.初始化项目文件 ./core/ini.php 源码:


这个文件首先设置了include_path,也就是我们如果要找包含的文件,告诉系统在这个目录下查找。其实我们定义__autoload()方法,这个方法是在PHP5增加的,就是当我们实例化一个函数的时候,如果本文件没有,就会自动去加载文件

3.加载系统配置文件./core/config.php 源码:


4.加载通用的方法的文件./core/global_fun.php 源码:

	*   过滤sql语句的关键字
	*/
    function strip_sql($string){
	   global $search_arr,$replace_arr;
	   return is_array($string) ? array_map('strip_sql', $string) : preg_replace($search_arr, $replace_arr, $string);
   }


   function new_htmlspecialchars($string){
		return is_array($string) ? array_map('new_htmlspecialchars', $string) : htmlspecialchars($string,ENT_QUOTES);
   }


   function new_addslashes($string){
		if(!is_array($string)) return addslashes($string);
		foreach($string as $key => $val) $string[$key] = new_addslashes($val);
		return $string;
   }


   function new_stripslashes($string)
   {
		if(!is_array($string)) return stripslashes($string);
		foreach($string as $key => $val) $string[$key] = new_stripslashes($val);
		return $string;
   }


   function strip_textarea($string){
		return nl2br(str_replace(' ', ' ', htmlspecialchars($string, ENT_QUOTES)));
   }


   function strip_js($string, $js = 1){
		$string = str_replace(array("\n","\r","\""),array('','',"\\\""),$string);
		return $js==1 ? "document.write(\"".$string."\");\n" : $string;
   }
   
   //邮件格式验证的函数
   function check_email($email)
   {
   	if(!preg_match("/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/",$email))
   	{
   		return false;
   	}
   	else
   		return true;
   }
   
   //验证手机号码
   function check_mobile($mobile)
   {
   		$pattern = "/^1\d{10}$/";
   		if (preg_match($pattern,$mobile))
   		{
   			Return true;
   		}
   		else
   		{
   			Return false;
   		}
   }
   
   //获取GMTime
   function get_gmtime()
   {
   	return (time() - date('Z'));
   }
   
   function to_date($utc_time, $format = 'Y-m-d H:i:s') {
   	if (empty ( $utc_time )) {
   		return '';
   	}
   	$timezone = 8;
   	$time = $utc_time + $timezone * 3600;
   	return date ($format, $time );
   }
   
   
   function to_timespan($str, $format = 'Y-m-d H:i:s')
   {
   	$timezone = 8;
   	$time = intval(strtotime($str));
   	if($time!=0)
   		$time = $time - $timezone * 3600;
   	return $time;
   }
   
   function get_http()
   {
   	return (isset($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS']) != 'off')) ? 'https://' : 'http://';
   }
   
   function get_domain()
   {
   	/* 协议 */
   	$protocol = get_http();
   
   	/* 域名或IP地址 */
   	if (isset($_SERVER['HTTP_X_FORWARDED_HOST']))
   	{
   		$host = $_SERVER['HTTP_X_FORWARDED_HOST'];
   	}
   	elseif (isset($_SERVER['HTTP_HOST']))
   	{
   		$host = $_SERVER['HTTP_HOST'];
   	}
   	else
   	{
   		/* 端口 */
   		if (isset($_SERVER['SERVER_PORT']))
   		{
   			$port = ':' . $_SERVER['SERVER_PORT'];
   
   			if ((':80' == $port && 'http://' == $protocol) || (':443' == $port && 'https://' == $protocol))
   			{
   				$port = '';
   			}
   		}
   		else
   		{
   			$port = '';
   		}
   
   		if (isset($_SERVER['SERVER_NAME']))
   		{
   			$host = $_SERVER['SERVER_NAME'] . $port;
   		}
   		elseif (isset($_SERVER['SERVER_ADDR']))
   		{
   			$host = $_SERVER['SERVER_ADDR'] . $port;
   		}
   	}
   
   	return $protocol . $host;
   }
   function get_host()
   {
   
   
   	/* 域名或IP地址 */
   	if (isset($_SERVER['HTTP_X_FORWARDED_HOST']))
   	{
   		$host = $_SERVER['HTTP_X_FORWARDED_HOST'];
   	}
   	elseif (isset($_SERVER['HTTP_HOST']))
   	{
   		$host = $_SERVER['HTTP_HOST'];
   	}
   	else
   	{
   		if (isset($_SERVER['SERVER_NAME']))
   		{
   			$host = $_SERVER['SERVER_NAME'];
   		}
   		elseif (isset($_SERVER['SERVER_ADDR']))
   		{
   			$host = $_SERVER['SERVER_ADDR'];
   		}
   	}
   	return $host;
   }
   
/*
 * 实现AES加密
* $str : 要加密的字符串
* $keys : 加密密钥
* $iv : 加密向量
* $cipher_alg : 加密方式
*/
function aes_ecryptdString($str,$keys="1034567890666450",$iv="1034567890123450",$cipher_alg=MCRYPT_RIJNDAEL_128){
// 	$encrypted_string= base64_encode(bin2hex(mcrypt_encrypt($cipher_alg,$keys, $str, MCRYPT_MODE_CBC,$iv)));
	$encrypted_string= bin2hex(mcrypt_encrypt($cipher_alg,$keys, $str, MCRYPT_MODE_CBC,$iv));
	return $encrypted_string;
}


/*
 * 实现AES解密
* $str : 要解密的字符串
* $keys : 加密密钥
* $iv : 加密向量
* $cipher_alg : 加密方式
*/
function aes_decryptString($str,$keys="1034567890666450",$iv="1034567890123450",$cipher_alg=MCRYPT_RIJNDAEL_128){
// 	$str= base64_decode($str);
	$decrypted_string= mcrypt_decrypt($cipher_alg,$keys,pack("H*",$str),MCRYPT_MODE_CBC,$iv);
	return $decrypted_string;
}
   
/**
 * 对数组进行转码操作
 * @param $array
 * @param $in_charset
 * @param $out_charset
 */
function iconv_array(&$array,$in_charset,$out_charset)
{
	if(UC_CHARSET!='utf-8')
	{
		foreach($array as $k=>$v)
		{
			if(is_array($array[$k]))
			{
				iconv_array($array[$k],$in_charset,$out_charset);
			}
			else
			{
				$array[$k] = iconv($in_charset,$out_charset,$array[$k]);
			}
		}
	}
}


/**
 * utf8字符转Unicode字符
 * @param string $char 要转换的单字符
 * @return void
 */
function utf8_to_unicode($char)
{
	switch(strlen($char))
	{
		case 1:
			return ord($char);
		case 2:
			$n = (ord($char[0]) & 0x3f) << 6;
			$n += ord($char[1]) & 0x3f;
			return $n;
		case 3:
			$n = (ord($char[0]) & 0x1f) << 12;
			$n += (ord($char[1]) & 0x3f) << 6;
			$n += ord($char[2]) & 0x3f;
			return $n;
		case 4:
			$n = (ord($char[0]) & 0x0f) << 18;
			$n += (ord($char[1]) & 0x3f) << 12;
			$n += (ord($char[2]) & 0x3f) << 6;
			$n += ord($char[3]) & 0x3f;
			return $n;
	}
}


/**
 * utf8字符串分隔为unicode字符串
 * @param string $str 要转换的字符串
 * @param string $depart 分隔,默认为空格为单字
 * @return string
 */
function str_to_unicode_word($str,$depart=' ')
{
	$arr = array();
	$str_len = mb_strlen($str,'utf-8');
	for($i = 0;$i < $str_len;$i++)
	{
		$s = mb_substr($str,$i,1,'utf-8');
		if($s != ' ' && $s != ' ')
			{
			$arr[] = 'ux'.utf8_to_unicode($s);
		}
	}
return implode($depart,$arr);
}


/**
 * utf8字符串分隔为unicode字符串
 * @param string $str 要转换的字符串
 * @return string
 */
function str_to_unicode_string($str)
{
	$string = str_to_unicode_word($str,'');
	return $string;
}


//分词
function div_str($str)
{
	require_once APP_ROOT_PATH."core/lib/words.php";
	$words = words::segment($str);
	$words[] = $str;
	return $words;
}


/**
 * @desc  im:十进制数转换成三十六机制数
 * @param (int)$num 十进制数
 * return 返回:三十六进制数
 */
function get_code_bynum($num) {
	$num = intval($num);
	if ($num <= 0)
		return false;
	$codeArr = array("0","1","2","3","4","5","6","7","8","9",'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z');
	$code = '';
	do {
		$key = ($num - 1) % 36;
		$code = $codeArr[$key] . $code;
		$num = floor(($num - $key) / 36);
	} while ($num > 0);
	return $code;
}


/**
 * @desc  im:三十六进制数转换成十机制数
 * @param (string)$str 三十六进制数
 * return 返回:十进制数
 */
function get_num_bycode($str){
	$array=array("0","1","2","3","4","5","6","7","8","9","A", "B", "C", "D","E", "F", "G", "H", "I", "J", "K", "L","M", "N", "O","P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y","Z");
	$len=strlen($str);
	for($i=0;$i<$len;$i++){
		$index=array_search($str[$i],$array);
		$sum+=($index+1)*pow(36,$len-$i-1);
	}
	return $sum;
}


?>

5.加载公共方法的文件./core/common.php 源码:

getOne("select value from ".DB_PREFIX."conf where name='".$name."'");
}

/*
 * @des:im:验证手机号码
* @param:$phone
*/
function check_phone($phone)
{
	if(!empty($phone) && !preg_match("/^1\d{10}$/",$phone))
	{
		return false;
	}
	else
		return true;
}

/**
 * @desc  get_pwd_strength()im:根据密码字符串判断密码结构
 * @param (string)$mobile
 * return 返回:$msg
 */
function get_pwd_strength($pwd){
	if (strlen(iconv('UTF-8','GBK',$pwd))>30 || strlen(iconv('UTF-8','GBK',$pwd))<6)
	{
		return '密码是6-30位的字符串,且必须由字母和数字组成.';
	}

	if(preg_match("/^\d+$/",$pwd))
	{
		return '密码不能为全数字';//全数字
	}

	if(preg_match("/^[a-z]+$/i",$pwd))
	{
		return '密码不能为全字母';//全字母
	}

	if(!preg_match("/^[A-Za-z0-9]+$/",$pwd))
	{
		return '密码只能包含字母和数字';//有数字有字母	";
	}
	return null;
}


/*ajax返回*/
function ajax_return($data)
{
	header("Content-Type:text/html; charset=utf-8");
	echo(json_encode($data));
// 	echo(base64_encode(json_encode($data)));
	if (APP_LOG) {
		$GLOBALS['log']->quit($data);
	}
	exit;
}

/**
 * 字符串加密函数
 * @param string $txt
 * @param string $key
 * @return string
 */
function passport_encrypt($txt, $key = 'IMEMBER_2013') {
	srand((double)microtime() * 1000000);
	$encrypt_key = md5(rand(0, 32000));
	$ctr = 0;
	$tmp = '';
	for($i = 0;$i < strlen($txt); $i++) {
		$ctr = $ctr == strlen($encrypt_key) ? 0 : $ctr;
		$tmp .= $encrypt_key[$ctr].($txt[$i] ^ $encrypt_key[$ctr++]);
	}
	return base64_encode(passport_key($tmp, $key));
}

/**
 * 字符串解密函数
 * @param string $txt
 * @param string $key
 * @return string
 */
function passport_decrypt($txt, $key = 'IMEMBER_2013') {
	$txt = passport_key(base64_decode($txt), $key);
	$tmp = '';
	for($i = 0;$i < strlen($txt); $i++) {
		if (empty($txt[$i+1])) {
			return false;
		}
		$md5 = $txt[$i];
		$tmp .= $txt[++$i] ^ $md5;
	}
	return $tmp;
}

function passport_key($txt, $encrypt_key) {
	$encrypt_key = md5($encrypt_key);
	$ctr = 0;
	$tmp = '';
	for($i = 0; $i < strlen($txt); $i++) {
		$ctr = $ctr == strlen($encrypt_key) ? 0 : $ctr;
		$tmp .= $txt[$i] ^ $encrypt_key[$ctr++];
	}
	return $tmp;
}

/**
 * 传入图片的地址,自动修复图片的相对路径(如 ./public/logo.png)到绝对路径(如http://www.imember.cc/public/logo.png)
 * @param unknown $img_path
 */
function imagePathRevise($img_path){
	//判断$img_path的路径是否以http://开头
	if (preg_match('/^http:\/\//', $img_path)) {
		return $img_path;
	}else{
		return IMG_PATH.preg_replace('/^\.\//', '', $img_path);
	}
}

//utf8 字符串截取
function msubstr($str, $start=0, $length=15, $charset="utf-8", $suffix=true)
{
	if(function_exists("mb_substr"))
	{
		$slice =  mb_substr($str, $start, $length, $charset);
		if($suffix&$slice!=$str) return $slice."…";
		return $slice;
	}
	elseif(function_exists('iconv_substr')) {
		return iconv_substr($str,$start,$length,$charset);
	}
	$re['utf-8']   = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
	$re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
	$re['gbk']    = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
	$re['big5']   = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
	preg_match_all($re[$charset], $str, $match);
	$slice = join("",array_slice($match[0], $start, $length));
	if($suffix&&$slice!=$str) return $slice."…";
	return $slice;
}

}
?>

6.加载./initializer.php,initializer()用于将所有公用的文件目录在此函数里声明

initializer::initialize();
这就话就是调用initializer类的一个静态函数initialize,因为我们在ini.php,设置了include_path,以及定义了__autoload,所以程序会自动在core/main目录查找initializer.php.
定义了一个静态函数,initialize函数,这个函数就是设置include_path,这样,以后如果包含文件,或者__autoload,就会去这些目录下查找。


7.加载./loader.php文件,源码:

"0003",'msg'=>"非法操作","data"=>"Not a valid object '{$object}' to load"));
		}
		if (empty(self::$loaded[$object])){
			self::$loaded[$object]= new $object();
		}
		return self::$loaded[$object];
	}
}
?>

8.加载控制层文件./router.php,源码:

"0003",'msg'=>"非法操作",'data'=>"Controller is null"));
		}
		
		$this->route = $routeParts['c'];
		$this->controller=$routeParts['c'];
		$this->action=isset($routeParts['act'])? $routeParts['act']:"index";
		array_shift($routeParts);
		array_shift($routeParts);
		$this->params=$routeParts;
	}
	public function getAction() {
		if (empty($this->action)) $this->action="index";
		return $this->action;
	}
	public function getController()  {
		return $this->controller;
	}
	public function getParams()  {
		return $this->params;
	}
}
?>

9.加载数据库连接文件./core/conn.php,源码:

"0009",'msg'=>"连接数据库失败" . mysql_error (),'data'=>'')));
//    }

   //第二种方法:定义DB类,加载数据库配置,对数据库SQL进行封装
   //加载数据库配置
   $dbcfg = require APP_ROOT_PATH."core/config/db_config.php";
   	
   	if(!defined('DB_PREFIX'))//im:数据库表前缀
   		define('DB_PREFIX', $dbcfg['DB_PREFIX']);
   if(!file_exists(APP_ROOT_PATH.'core/runtime/db_caches/'))
   		mkdir(APP_ROOT_PATH.'core/runtime/db_caches/',0777);
   $pconnect = false;
   $GLOBALS['db'] = new mysql_db($dbcfg['DB_HOST'].":".$dbcfg['DB_PORT'], $dbcfg['DB_USER'],$dbcfg['DB_PWD'],$dbcfg['DB_NAME'],'utf8',$pconnect);
   mysql_query("SET NAMES UTF8");//相当于character_set_client(),character_set_connection(),character_set_results()客户端 连接器 返回值三者同时设置编码方式
   //检查PHP是否连接上MYSQL
   if(mysqli_connect_errno()){
   		die (json_encode(array('recode'=>"0009",'msg'=>"连接数据库失败:" . mysql_error (),'data'=>'')));
   }
   //end 定义DB
   
?>

10.加载数据库配置文件./core/db_config.php,源码:

'localhost',
'DB_NAME'=>'ip',
'DB_USER'=>'sara',
'DB_PWD'=>'abc123',
'DB_PORT'=>'3306',
'DB_PREFIX'=>'base_',
);
?>


11.加载数据库类文件./core/mysql_db.php,源码:

mysql_db($dbhost, $dbuser, $dbpw, $dbname, $charset, $pconnect, $quiet);
   	}
   
   	function mysql_db($dbhost, $dbuser, $dbpw, $dbname = '', $charset = 'utf8', $pconnect = 0, $quiet = 0)
   	{
   		if (defined('APP_ROOT_PATH') && !$this->root_path)
   		{
   			$this->root_path = APP_ROOT_PATH;
   		}
   
   		if ($quiet)
   		{
   			$this->connect($dbhost, $dbuser, $dbpw, $dbname, $charset, $pconnect, $quiet);
   		}
   		else
   		{
   			$this->settings = array(
   					'dbhost'   => $dbhost,
   					'dbuser'   => $dbuser,
   					'dbpw'     => $dbpw,
   					'dbname'   => $dbname,
   					'charset'  => $charset,
   					'pconnect' => $pconnect
   			);
   		}
   	}
   
   	function connect($dbhost, $dbuser, $dbpw, $dbname = '', $charset = 'utf8', $pconnect = 0, $quiet = 0)
   	{
   		if ($pconnect)
   		{
   			if (!($this->link_id = @mysql_pconnect($dbhost, $dbuser, $dbpw)))
   			{
   				if (!$quiet)
   				{
   					$this->ErrorMsg("Can't pConnect MySQL Server($dbhost)!");
   				}
   
   				return false;
   			}
   		}
   		else
   		{
   			if (PHP_VERSION >= '4.2')
   			{
   				$this->link_id = @mysql_connect($dbhost, $dbuser, $dbpw, true);
   			}
   			else
   			{
   				$this->link_id = @mysql_connect($dbhost, $dbuser, $dbpw);
   
   				mt_srand((double)microtime() * 1000000); // 对 PHP 4.2 以下的版本进行随机数函数的初始化工作
   			}
   			if (!$this->link_id)
   			{
   				if (!$quiet)
   				{
   					$this->ErrorMsg("Can't Connect MySQL Server($dbhost)!");
   				}
   
   				return false;
   			}
   		}
   
   		$this->dbhash  = md5($this->root_path . $dbhost . $dbuser . $dbpw . $dbname);
   		$this->version = mysql_get_server_info($this->link_id);
   
   		/* 如果mysql 版本是 4.1+ 以上,需要对字符集进行初始化 */
   		if ($this->version > '4.1')
   		{
   			if ($charset != 'latin1')
   			{
   				mysql_query("SET character_set_connection=$charset, character_set_results=$charset, character_set_client=binary", $this->link_id);
   			}
   			if ($this->version > '5.0.1')
   			{
   				mysql_query("SET sql_mode=''", $this->link_id);
   			}
   		}
   
   		$sqlcache_config_file = $this->root_path . $this->cache_data_dir . 'sqlcache_config_file_' . $this->dbhash . '.php';
   
   		@include($sqlcache_config_file);
   
   		$this->starttime = time();
   
   		if ($this->max_cache_time && $this->starttime > $this->mysql_config_cache_file_time + $this->max_cache_time)
   		{
   			if ($dbhost != '.')
   			{
   				$result = mysql_query("SHOW VARIABLES LIKE 'basedir'", $this->link_id);
   				$row    = mysql_fetch_assoc($result);
   				if (!empty($row['Value']{
   					1}) && $row['Value']{
   						1} == ':' && !empty($row['Value']{
   							2}) && $row['Value']{
   								2} == "\\")
   				{
   					$this->platform = 'WINDOWS';
   				}
   				else
   				{
   					$this->platform = 'OTHER';
   				}
   			}
   			else
   			{
   				$this->platform = 'WINDOWS';
   			}
   
   			if ($this->platform == 'OTHER' &&
   					($dbhost != '.' && strtolower($dbhost) != 'localhost:3306' && $dbhost != '127.0.0.1:3306') ||
   					(PHP_VERSION >= '5.1' && date_default_timezone_get() == 'UTC'))
   			{
   				$result = mysql_query("SELECT UNIX_TIMESTAMP() AS timeline, UNIX_TIMESTAMP('" . date('Y-m-d H:i:s', $this->starttime) . "') AS timezone", $this->link_id);
   				$row    = mysql_fetch_assoc($result);
   
   				if ($dbhost != '.' && strtolower($dbhost) != 'localhost:3306' && $dbhost != '127.0.0.1:3306')
   				{
   					$this->timeline = $this->starttime - $row['timeline'];
   				}
   
   				if (PHP_VERSION >= '5.1' && date_default_timezone_get() == 'UTC')
   				{
   					$this->timezone = $this->starttime - $row['timezone'];
   				}
   			}
   
   			$content = '<' . "?php\r\n" .
   					'$this->mysql_config_cache_file_time = ' . $this->starttime . ";\r\n" .
   					'$this->timeline = ' . $this->timeline . ";\r\n" .
   					'$this->timezone = ' . $this->timezone . ";\r\n" .
   					'$this->platform = ' . "'" . $this->platform . "';\r\n?" . '>';
   
   			@file_put_contents($sqlcache_config_file, $content);
   		}
   
   		/* 选择数据库 */
   		if ($dbname)
   		{
   			if (mysql_select_db($dbname, $this->link_id) === false )
   			{
   				if (!$quiet)
   				{
   					$this->ErrorMsg("Can't select MySQL database($dbname)!");
   				}
   
   				return false;
   			}
   			else
   			{
   				return true;
   			}
   		}
   		else
   		{
   			return true;
   		}
   	}
   
   	function select_database($dbname)
   	{
   		return mysql_select_db($dbname, $this->link_id);
   	}
   
   	function set_mysql_charset($charset)
   	{
   		/* 如果mysql 版本是 4.1+ 以上,需要对字符集进行初始化 */
   		if ($this->version > '4.1')
   		{
   			if (in_array(strtolower($charset), array('gbk', 'big5', 'utf-8', 'utf8')))
   			{
   				$charset = str_replace('-', '', $charset);
   			}
   			if ($charset != 'latin1')
   			{
   				mysql_query("SET character_set_connection=$charset, character_set_results=$charset, character_set_client=binary", $this->link_id);
   			}
   		}
   	}
   
   	function fetch_array($query, $result_type = MYSQL_ASSOC)
   	{
   		return mysql_fetch_array($query, $result_type);
   	}
   
   	function query($sql, $type = '')
   	{
   		if ($this->link_id === NULL)
   		{
   			$this->connect($this->settings['dbhost'], $this->settings['dbuser'], $this->settings['dbpw'], $this->settings['dbname'], $

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