<?php
/* 快捷商城系统
 * 版本号：2.0
 * 官网：http://www.kjcms.cn
 * 2015-02-16
 *	检测函数类
 */
class fun_is {
	// request 是否有值
	static function set($msg_name) {
		if(isset($_REQUEST[$msg_name])) {
			return true;
		}else{
			return false;
		}
	}
	// 组件是否安装
	static function com($msg_name) {
		return cls_com::is($msg_name);
	}

	// 按配置文件的正则来校验用户名
	static function uname($msg_val) {
		$rule = fun_get::rule_uname("php");
		if(empty($rule)) return true;
		if($rule == 'email') {
			return (self::email($msg_val)) ? true : false;
		}
		if($rule == 'mobile') {
			return (self::mobile($msg_val)) ? true : false;
		}
		if( !preg_match($rule,$msg_val) ) return false;
		return true;
	}

	// 按配置文件的正则来校验用户名
	static function pwd($msg_val) {
		$rule = fun_get::rule_pwd("php");
		if(empty($rule)) return true;
		if( !preg_match($rule,$msg_val) ) return false;
		return true;
	}

	static function number($msg_val , $msg_len1 = 1 , $msg_len2 = "") {
		if(!preg_match("/^[0-9]{".$msg_len1.",".$msg_len2."}$/is",$msg_val)) return false;
		return true;
	}

	static function isdate($msgval) {
		list($year, $month, $day) = sscanf($msgval, '%d-%d-%d');
		$strx=checkdate($month, $day, $year);
		return $strx;
	}

	static function chinaness($msg_val,$msg_len1=1,$msg_len2=""){
		if(strtolower(DB_CHARSET) == "gbk") {
			$str_utf8_u = "";
			$str_chinacode = chr(0xa1)."-".chr(0xff);
		}else{
			$str_utf8_u = "u";
			$str_chinacode = "\x{4e00}-\x{9fa5}";
		}
		if(!preg_match("/^[".$str_chinacode."]{".$msg_len1.",".$msg_len2."}$/".$str_utf8_u."is",$msg_val)) return false;
		return true;
	}

	static function tel($msg_val) {
		if(!preg_match("/^([0-9]{3,4}[-|\s]{0,1}){0,1}[0-9]{7,8}$/is",$msg_val) && !self::mobile($msg_val)) return false;
		return true;
	}

	static function mobile($msg_val) {
		if(!preg_match("/^[1][0-9]{10}$/is",$msg_val)) return false;
		return true;
	}

	static function email($msg_val) {
		if(!preg_match("/^[a-zA-Z0-9]+([.a-zA-Z0-9_-])*@([a-zA-A0-9_-])+(.[a-zA-Z0-9_-]+)+[a-zA-Z0-9_-]$/",$msg_val)) {
			return false;
		}
		return true;
	}

	static function domain($msg_url) {
		if(preg_match('/^([a-z-0-9_-]*\.){0,1}[a-z0-9_-]+\.[a-z]{2,3}$/is',$msg_url)) {
			return true;
		}else{
			return false;
		}
	}

	static function pic($msgval , $msgext = "") {
		if( $msgval == "" && $msgext == "" ) return false;
		$str_ext = $msgext;
		if($str_ext == "") $str_ext = end(explode("." , $msgval));
		$str_ext = strtolower($str_ext);
		if(in_array($str_ext , array("jpg","jpeg","gif","png","bmp","ico"))) {
			return true;
		}else{
			return false;
		}
	}

	static function flash($msgval , $msgext="") {
		if( $msgval == "" && $msgext == "" ) return false;
		$str_ext = $msgext;
		if( $str_ext == "" ) $str_ext = end(explode($msgval,"."));
		$str_ext = strtolower($str_ext);
		if( in_array($str_ext , array("swf")) ) {
			return true;
		}else{
			return false;
		}
	}

	static function media($msgval , $msgext="") {
		if($msgval == "" && $msgext == "") return false;
		$str_ext=$msgext;
		if($str_ext == "") $str_ext = end(explode($msgval,"."));
		$str_ext = strtolower($str_ext);
		if( in_array($str_ext,array("mp3","flv","rm","wmv")) ) {
			return true;
		}else{
			return false;
		}
	}
	static function rar($msgval , $msgext="") {
		if($msgval == "" && $msgext == "") return false;
		$str_ext=$msgext;
		if($str_ext == "") $str_ext = end(explode($msgval,"."));
		$str_ext = strtolower($str_ext);
		if( in_array($str_ext,array("rar","zip","7z","cab")) ) {
			return true;
		}else{
			return false;
		}
	}
	static function doc($msgval , $msgext="") {
		if($msgval == "" && $msgext == "") return false;
		$str_ext=$msgext;
		if($str_ext == "") $str_ext = end(explode($msgval,"."));
		$str_ext = strtolower($str_ext);
		if( in_array($str_ext,array("doc","xls","xlsx","docx","txt")) ) {
			return true;
		}else{
			return false;
		}
	}
	static function assoc($arr) { 
		if(!is_array($arr)) return false;
		return array_keys($arr) !== range(0, count($arr) - 1); 
	} 
	static function serialized( $data ) { 
		// if it isn't a string, it isn't serialized 
		if(empty($data)) return false;
		if ( !is_string( $data ) ) 
			return false; 
		$data = trim( $data ); 
		if ( 'N;' == $data ) 
			return true; 
		if ( !preg_match( '/^([adObis]):/', $data, $badions ) ) 
			return false; 
		switch ( $badions[1] ) { 
			case 'a' : 
			case 'O' : 
			case 's' : 
				if ( preg_match( "/^{$badions[1]}:[0-9]+:.*[;}]\$/s", $data ) ) 
					return true; 
				break; 
			case 'b' : 
			case 'i' : 
			case 'd' : 
				if ( preg_match( "/^{$badions[1]}:[0-9.E-]+;\$/", $data ) ) 
					return true; 
				break; 
		} 
		return false; 
	}
	static function wap() {
		$agent = fun_get::agent();
		if(!in_array($agent,array('','ipad'))) {
			return true;
		} else {
			return false;
		}
	}
}