index.php

本邮编区号查询系统的数据应该是迄今为止公布过的最全的（6万多条）

<?php
set_time_limit(0);
$q = trim($_GET['q']); //关键词
$page = intval($_GET['p']); //页数
if($page==0) $page=1;

$r_num = 0; //结果个数
$p_num = 40; //每页结果的数据条数
$result = "";

$shengpy = array('B','T','H','S','N','L','J','H','S','J','Z','A','F','J','S','H','H','H','G','G','H','C','S','G','Y','X','S','G','Q','N','X','X','A','T');
$sheng = array('北京','天津','河北','山西','内蒙古','辽宁','吉林','黑龙江','上海','江苏','浙江','安徽','福建','江西','山东','湖南','湖北','河南','广东','广西','海南','重庆','四川','贵州','云南','西藏','陕西','甘肃','青海','宁夏','新疆','香港','澳门','台湾');

if($q){
	switch ($_GET['w']){
		case "sheng":
		case "diqu":
		case "shi":
		case "cun":
		case "youbian":
		case "quhao":
			$keydb = "cache/".$_GET['w']."/".urlencode($q).".htm";
			break;
		default:
			$keydb = "cache/all/".urlencode($q).".htm";
			break;
	}

	if (!@file_exists($keydb)){
		$dreamdb=file("data/pc.dat");//读取区号文件
		$count=count($dreamdb);//计算行数

		for($i=0; $i<$count; $i++) {
			$keyword=explode(" ",$q);//拆分关键字
			$dreamcount=count($keyword);//关键字个数
			$detail=explode("\t",$dreamdb[$i]);

			for ($ai=0; $ai<$dreamcount; $ai++){
				switch ($_GET['w']){
					case "sheng":
						@eval("\$found = eregi(\"$keyword[$ai]\",\"$detail[0]\");");
						break;
					case "diqu":
						@eval("\$found = eregi(\"$keyword[$ai]\",\"$detail[1]\");");
						break;
					case "shi":
						@eval("\$found = eregi(\"$keyword[$ai]\",\"$detail[2]\");");
						break;
					case "cun":
						@eval("\$found = eregi(\"$keyword[$ai]\",\"$detail[3]\");");
						break;
					case "youbian":
						@eval("\$found = eregi(\"$keyword[$ai]\",\"$detail[4]\");");
						break;
					case "quhao":
						@eval("\$found = eregi(\"$keyword[$ai]\",\"$detail[5]\");");
						break;
					default:
						@eval("\$found = eregi(\"$keyword[$ai]\",\"$dreamdb[$i]\");");
						break;
				}

				if(($found)){
					$r_num++;
					if(fmod($r_num, $p_num)==0) $r .= "\n";
					$r .= '<tr height="24"><td><a href="?q='.urlencode($detail[0]).'&w=sheng">'.$detail[0].'</a></td><td><a href="?q='.urlencode($detail[1]).'&w=diqu">'.$detail[1].'</a></td><td><a href="?q='.urlencode($detail[2]).'&w=shi">'.$detail[2].'</a></td><td><a href="?q='.urlencode($detail[3]).'&w=cun">'.$detail[3].'</a></td><td><a href="?q='.$detail[4].'&w=youbian">'.$detail[4].'</a></td><td><a href="?q='.trim($detail[5],"\n\r").'&w=quhao">'.trim($detail[5],"\n\r").'</a></td></tr>';
					if($r_num>=$p_num*($page-1)+1 && $r_num<=$p_num*$page){
						$result .= '<tr height="24"><td><a href="?q='.urlencode($detail[0]).'&w=sheng">'.$detail[0].'</a></td><td><a href="?q='.urlencode($detail[1]).'&w=diqu">'.$detail[1].'</a></td><td><a href="?q='.urlencode($detail[2]).'&w=shi">'.$detail[2].'</a></td><td><a href="?q='.urlencode($detail[3]).'&w=cun">'.$detail[3].'</a></td><td><a href="?q='.$detail[4].'&w=youbian">'.$detail[4].'</a></td><td><a href="?q='.trim($detail[5],"\n\r").'&w=quhao">'.trim($detail[5],"\n\r").'</a></td></tr>';
					}
					break;
				}
			}
			$p = ceil($r_num/$p_num); //结果实际页数
		}
		//将数据缓存下来
		$fp = @fopen($keydb,"a");
		@fwrite($fp,$r_num."\n".$r);
		@fclose($fp);
	}else{
		$dreamdb=file($keydb);
		$r_num = trim($dreamdb[0],"\n\r");
		$p = ceil($r_num/$p_num); //结果实际页数
		if($page>$p) $page=$p;
		$result = $dreamdb[$page];
	}

	for($i=1; $i<=$p; $i++){
		$post_l .= '<a href="?q='.urlencode($q).'&p='.$i;
		if($_GET['w']) $post_l .= '&act='.$_GET['w'];
		if($i==$page){
			$post_l .= '"><font color="red">['.$i.']</font></a> ';
		}else{
			$post_l .= '">['.$i.']</a> ';
		}
	}
	$post_l = '<tr><td align="center" style="font-size:14px;padding:10px;" bgcolor="#EDF7FF">分页：'.$post_l.' (共计'.$r_num.'个，每页'.$p_num.'个)</td></tr>';

	$result = '<table width="700" cellpadding="2" cellspacing="0" style="border:1px solid #B2D0EA;"><tr><td style="background:#EDF7FF;padding:0 5px;color:#014198;" height="26" valign="middle"><b>找到'.$r_num.'个与 <a href="./?q='.urlencode($q).'"><font color="#c60a00">'.$q.'</font></a> 相关的邮编区号</b></td></tr><tr><td><table cellpadding="4" cellspacing="4" width="100%" style="text-align:center"><tr style="text-align:center;font-weight:bold;" height="26" bgcolor="#efefef"><td width="80">省</td><td>地区</td><td>市县</td><td>乡镇村</td><td width="80">邮政编码</td><td width="60">电话区号</td></tr>'.$result.'</table></td></tr>'.$post_l.'</table>';
}
?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<?
switch ($_GET['w']){
	case "sheng":
		$qw = "省份: ";
		break;
	case "diqu":
		$qw = "地区: ";
		break;
	case "shi":
		$qw = "市县: ";
		break;
	case "cun":