帝国CMS三级联动+结合项

<?php 
/* 
作者：pkkgu; 
应用：PHP 读取js省市区地址库 用于前台列表结合项筛选;
$type 0 省 
$type 1 市 
$type 2 区
$num 省为空，市或区时值为市或区的编号
函数放到 userfun.php
*/ 
function read_file_content($type=0,$num='') 
{ 
	if($type==0){
		$FileName="skin/peiyou/js/city/js/json-array-of-province.js";
		$len=6;
	}
	elseif($type==1){
		$FileName="skin/peiyou/js/city/js/json-array-of-city.js";
		$len=2;
	}
	elseif($type==2){
		$FileName="skin/peiyou/js/city/js/json-array-of-district.js";
		$len=4;
	}
	//open file 
	$fp=fopen($FileName,"r"); 
	$data=""; 
	while(!feof($fp)) 
	{ 
		//read the file 
		$data.=fread($fp,4096); 
	} 
	//close the file 
	fclose($fp); 
	//delete the file 
	//unlink($FileName); 
	//return the content from the file 
	$ret='';
	$data=json_decode($data);
	for($i=0;$i<count($data);$i++){
		if($type==0||($type!=0&&substr($num,0,$len)==substr($data[$i]->code,0,$len))){
			$ret.="##".$data[$i]->name.','.$data[$i]->code;
		}
	}
	return $ret;
	//echo $data; 
} 
?>

<?php
//前台列表模版应用
$fieldandval=array();
// functiong read_file_content userfun.php
$getpro=(int)$_GET['pro'];
$profvar=',pro';
$proval=read_file_content();
$fieldandval['pro']='<SPAN>省：</SPAN>|==|全部,'.$proval;
$cityfvar='';
$townfvar='';
if($getpro){
	$cityfvar=',city';
	$cityval=read_file_content(1,$getpro);
	$fieldandval['city']='<SPAN>市：</SPAN>|==|全部,'.$cityval;
	$getcity=(int)$_GET['city'];
	if($getcity){
		$townfvar=',town';
		$townval=read_file_content(2,$getcity);
		$fieldandval['town']='<SPAN>县：</SPAN>|==|全部,'.$townval;
	}
}
//要显示的结合项字段列表，多个字段用半角逗号“,”隔开zjyx
$fieldandvar='sex,zjyx'.$profvar.$cityfvar.$townfvar;
//字段显示选项设置，多项用双“#”号隔开，格式：选项说明|==|内容1,值1##内容2,值2
$fieldandval['sex']='<SPAN>性别要求：</SPAN>|==|全部,##男,男##女,女';
$fieldandval['zjyx']='<SPAN>陪伴类型：</SPAN>|==|全部,##私人陪游,商务陪游##交友陪游,异国陪游';
$fieldandval['price']='<SPAN>求聘报酬：</SPAN>|==|全部,##免费,免费##面议,面议##200元以上/天,200元以上/天##1000-3000元/月,1000-3000元/月##3000-6000元/月,3000-6000元/月##6000元以上/月,6000元以上/月';
user_ShowFieldandChange($fieldandvar,$fieldandval);
?>

<!-- 模型字段HTMl 后台 注意：模型需要加6个字段（三个用于存中文） -->
<script src="/skin/peiyou/js/city/js/script.js" type="text/javascript"></script> 
<select id="pro" name="pro"> 
<option value="0">请选择省份</option> 
</select> 
<select id="city" name="city"> 
<option value="0">请选择城市</option> 
</select> 
<select id="town" name="town"> 
<option value="0">请选择区县</option> 
</select> 

<!--下列为初始值(可选,编辑表单时设置)--> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[pro]))?>" id="pre_pro"/> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[city]))?>" id="pre_city"/> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[town]))?>" id="pre_town"/> 
<!--下列为中文说明--> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[pro1]))?>" id="pro1" name="pro1" /> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[city1]))?>" id="city1" name="city1" /> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[town1]))?>" id="town1" name="town1" />
<!-- 模型字段HTMl 前台 注意：模型需要加6个字段（三个用于存中文） -->
<script src="/skin/peiyou/js/city/js/script.js" type="text/javascript"></script> 
<select id="pro" name="pro"> 
<option value="0">请选择省份</option> 
</select> 
<select id="city" name="city"> 
<option value="0">请选择城市</option> 
</select> 
<select id="town" name="town"> 
<option value="0">请选择区县</option> 
</select> 

<!--下列为初始值(可选,编辑表单时设置)--> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":DoReqValue($mid,'town',stripSlashes($r[pro]))?>" id="pre_pro"/> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":DoReqValue($mid,'town',stripSlashes($r[city]))?>" id="pre_city"/> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":DoReqValue($mid,'town',stripSlashes($r[town]))?>" id="pre_town"/> 
<!--下列为中文说明--> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":DoReqValue($mid,'town',stripSlashes($r[pro1]))?>" id="pro1" name="pro1" /> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":DoReqValue($mid,'town',stripSlashes($r[city1]))?>" id="city1" name="city1" /> 
<input type="hidden" value="<?=$ecmsfirstpost==1?"":DoReqValue($mid,'town',stripSlashes($r[town1]))?>" id="town1" name="town1" />