PHP web版各省市三日内天气预报

孤独海岸线 · 发表于 2017-4-9 14:18:21

<html>
<head>
<title>天气预报模块</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link href="CSS/style.css" rel="stylesheet">
</head>
<body>
<?php
//载入公共文件
require_once './common.php';
//调用省份，城市和代码的数组表文件
require_once S_ROOT.'./citycode.inc.php';
$country = '';//初始化变量
$weather = array();//定义数组
//如果传入城市编码参数，则根据该参数获取指定城市信息
if (isset($_GET['citycode']) && $_GET['citycode']!='' && strlen($_GET['citycode'])<6) {
$city = getcitybycode($_GET['citycode'],$p,$c,$n);
}elseif(isset($_COOKIE['citycode']) && $_COOKIE['citycode']!='') {
$city = getcitybycode($_COOKIE['citycode'],$p,$c,$n);
}
unset($country, $p, $c, $n);//销毁指定的变量

$htmlarr = get_cma_html($city['0']);
if(!is_array($htmlarr) || empty($htmlarr)){
die('读取中央气象局天气信息失败！');
}
//将读取的数据存储到XML中
$data_dir = DATAPATH.$city[3].'/';
$live_file = $data_dir.'live_'.$city['0'].'.xml';//将读取的天气信息存储到XML文件中
$cma_file = $data_dir.'cma_'.$city['0'].'.xml';//将读取的天气指数存储到XML文件中

if (!$cfg['cache']){
//无缓存，每次更新
$live_weather = get_live_weather($htmlarr);
$cma_weather = get_cma_weather($htmlarr);
} else {
mk_dir($data_dir);
if (!@file_exists($live_file)|| date("Ymd")>date("Ymd",filemtime($live_file)) || ($_SGLOBAL['timestamp']-filemtime($live_file))>$cfg['lw_cachetime']) {
@unlink($live_file);
//获取实况天气信息，并保存
$live_weather = get_live_weather($htmlarr);
save_weather_xml($live_weather, $live_file, 0);
} else {
$live_weather = read_weather_xml($live_file, 0);
}
if (!@file_exists($cma_file) || date("Ymd")>date("Ymd",filemtime($cma_file)) || ($_SGLOBAL['timestamp']-filemtime($cma_file))>$cfg['w_cachetime']) {
@unlink($cma_file);
//获取未来三日天气信息和指数查询，并保存
$cma_weather = get_cma_weather($htmlarr);
save_weather_xml($cma_weather, $cma_file, 1);
} else {
$cma_weather = read_weather_xml($cma_file, 1);
}
}
unset($htmlarr);//销毁指定的变量
foreach ($cma_weather['cma']['gif'] as $k => $v) {//遍历天气数组元素
list($gif[$k][0],$gif[$k][1]) = explode(',', $v);
}
?>
<table width="1004" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td width="258" height="144" rowspan="3" background="images/index_01.gif"> </td>
<td width="746" height="50" valign="top" background="images/index_02.gif"> </td>
</tr>
<tr>
<td width="746" height="34" valign="top" background="images/index_03.gif"> </td>
</tr>
<tr>
<td width="746" height="60" valign="top" background="images/index_05.gif"> </td>
</tr>
<tr>
<td colspan="2" valign="top">
<?php
define("_TPLPath_", S_ROOT.'./templates/');//定义模板路径
include template('weather.htm');//调用模板文件
?>
</td>
</tr>
<tr>
<td height="31" colspan="2" background="images/index_19.gif"> </td>
</tr>
</table>
</body>
</html>

<?php
if(!defined('IN_WEATHER')) {
exit('Access Denied');
}
// 通过用户指定的城市编码获取该城市信息,$citycode为城市编码,$p为省份数组,$c为城市数组,$n为城市编码数组
function getcitybycode($citycode,$p,$c,$n){
$flag = true;
foreach($n as $k => $arr){
if(in_array($citycode,$arr)){
$pkey = $k;
$flag = false;
break;
}
}
if($flag){
$pkey = '0';
$ckey = '0';
$citycode = $n[$pkey][$ckey];
}else{
$ckeyarr = array_keys($n[$pkey],$citycode);
$ckey = $ckeyarr[0];
}
$city = array($citycode,$p[$pkey],$c[$pkey][$ckey],$pkey);
return $city;
}
//通过用户ip得到用户所在位置，然后获取该城市信息,$citycode为城市编码,$p为省份数组,$c为城市数组,$n为城市编码数组
function getcitybyip($country,$p,$c,$n){
$pkey = getkey($p,$country); //获取省份数组下标
$ckey = getkey($c[$pkey],$country); //获取城市数组下标
$code = $n[$pkey][$ckey]; //取得相应省份所属的城市在中央天气预报信息库中的编码
$city= array($code,$country,$c[$pkey][$ckey],$pkey);
return $city;
}
function getkey($arr,$country){//获取数组的下标
if(is_array($arr)){
foreach($arr as $key => $val){
if(preg_match('/('.$val.')/',$country,$match)){
return $key;
}
}
}else{
if(preg_match('/('.$arr.')/',$country,$match)){
return $key;
}
}
return 0;
}
function mk_dir($dir) {//创建文件夹,@param $dir 文件夹路径
if(!@file_exists($dir)) {
@mkdir($dir, 0777);
}
}
/**
* 功能：通过城市编码从中国气象局天气预报页面读取信息
* 参数： $citycode为城市编码
* 说明：返回包含天气信息数组
*/
function get_cma_html($citycode) {
for ($i=0; $i<10; $i++) {
//中国气象局天气数据
if (false != ($htmlarr = file('http://www.cma.gov.cn/tqyb/weatherdetail/'.$citycode.'.html'))) {
return $htmlarr;
}
}
return false;
}
/**
* 功能：从天气数组中提取实况天气信息
* 参数： $htmlarr为天气信息文本
* 说明：返回实况天气信息数组
*/
function get_live_weather($htmlarr) {
$weather = array();
$weather['date'] = strip_tags($htmlarr[660]);
$weather['city'] = strip_tags($htmlarr[670]);
$weather['weather'] = strip_tags($htmlarr[674]);
$weather['temperature'] = strip_tags($htmlarr[675]);
$weather['wind'] = strip_tags($htmlarr[681]);
$weather['air'] = strip_tags($htmlarr[682]);
$weather['ultraviolet'] = strip_tags($htmlarr[683]);
$weather['a'] = strip_tags($htmlarr[684]);
$weather['gif'] = eregi_replace('(.+)*/tqyb/img/weather/(.+)*" width="20" height="20"></li>', "\\2", $htmlarr[671]);
return $weather;
}

/**
* 功能：从天气数组中提取三日天气信息
* 参数： $htmlarr为天气信息文本
* 说明：返回天气信息数组
*/
function get_cma_weather($htmlarr){
$waather = array();
list($dateregine,$weather['city']) = explode("   ",strip_tags($htmlarr['861']));
$arr['date'] = array($htmlarr['871'],$htmlarr['872'],$htmlarr['873']);
$arr['weather'] = array($htmlarr['883'],$htmlarr['890'],$htmlarr['897']);
$arr['temperature'] = array($htmlarr['917'],$htmlarr['918'],$htmlarr['919']);
$gif['gif'] = array($htmlarr['882'],$htmlarr['889'],$htmlarr['896']);
$winddirect = array($htmlarr['925'],$htmlarr['926'],$htmlarr['927']);
foreach($arr as $k => $v){
foreach($v as $key => $val){
$weather['cma'][$k][$key] = strip_tags($val);
}
}
foreach($winddirect as $k => $v){
$weather['cma']['winddirect'][$k] = htmlspecialchars(eregi_replace('(.+)*"b-cn">(.+)*</td>',"\\2",$v));
}
foreach ($gif['gif'] as $k => $v) {
$weather['cma']['gif'][$k] = eregi_replace('(.+)*/tqyb/img/weather/(.+)*" width="20" height="20"> <img src="/tqyb/img/weather/(.+)*" width="20" height="20"></td>',"\\3,\\2",$v);
}
return $weather;
}
/**
* 功能：从文本中提取指数查询
* 参数： $htmlarr为天气信息文本
* 说明：返回指数查询数组
*/
function get_zscx_weather($htmlarr) {
$zscx = array('cyzs'=>$htmlarr['974'],'gmzs'=>$htmlarr['978'],'clzs'=>$htmlarr['982'],'jtzs'=>$htmlarr['986'],'zszs'=>$htmlarr['990'],'gyzs'=>$htmlarr['994'],'fszs'=>$htmlarr['998'],'lxzs'=>$htmlarr['1002']);
foreach ($zscx as $k => $v) {
$weather[$k] = eregi_replace('(.+)*title="(.+)*">(.+)*</a></td>',"\\2",$v);
}
return $weather;
}
/**
* 功能：从指定的路径读取存储有天气信息的xml文件
* 参数： $filepath为文件路径
* 说明：返回天气信息数组
*/
function read_weather_xml($filepath, $mod=0){
$w = simplexml_load_file($filepath);
if ($mod == 0) {
$weather['city'] = $w->city;
$weather['date'] = $w->date;
$weather['weather'] = $w->weather;
$weather['temperature'] = $w->temperature;
$weather['wind'] = $w->wind;
$weather['air'] = $w->air;
$weather['ultraviolet'] = $w->ultraviolet;
$weather['gif'] = $w->gif;
foreach ($weather as $k => $v) {
$weather[$k] = iconv("utf-8","gb2312",$v);
}
} elseif ($mod == 1) {
$weather['city'] = iconv("utf-8","gb2312",$w->city);
$i = 0;
foreach ($w->data as $k => $v) {
foreach ($v as $key => $val) {
$weather['cma'][$key][$i] = iconv("utf-8","gb2312",$val);
}
$i++;
}
foreach ($w->zscx as $v){
foreach ($v as $key => $val) {
$weather['zscx'][$key] = iconv("utf-8","gb2312",$val);
}
}
}
return $weather;
}
/**
* 功能：将天气信息存储为指定的xml文件
* 参数： $w为该城市天气信息，$filepath为文件路径，$mod=0是表示实况天气信息，$mod=1为未来三日天气信息
*/
function save_weather_xml($w, $filepath, $mod=0){
$dom = new DomDocument();
$xmlstr = '<?xml version="1.0" encoding="gb2312"?>';
$xmlstr .= "<weatherinfo>";
if ($mod == 1) {
$xmlstr .= "<city>".$w['city']."</city>";
$datasize = count($w['cma']['date']);
for($i=0; $i<$datasize; $i++){
$xmlstr .= "<data>";
$xmlstr .="<date>".$w['cma']['date'][$i]."</date>";
$xmlstr .="<weather>".$w['cma']['weather'][$i]."</weather>";
$xmlstr .="<temperature>".$w['cma']['temperature'][$i]."</temperature>";
$xmlstr .="<winddirect>".$w['cma']['winddirect'][$i]."</winddirect>";
$xmlstr .="<gif>".$w['cma']['gif'][$i]."</gif>";
$xmlstr .="</data>";
}
} elseif ($mod == 0) {
foreach ($w as $k => $v) {
$xmlstr .= "<".$k.">".$v."</".$k.">";
}
}
$xmlstr .="</weatherinfo>";
$dom->loadXML($xmlstr);
$dom->save($filepath);
}
//模板调用
function template($tplfile, $tplpath = '', $tplcachepath = '', $userpack = '', $userpackpath = '') {
$tplpath = $tplpath != '' ? $tplpath : (defined("_TPLPath_") ? _TPLPath_ : '');
$tplfile = $tplpath.$tplfile;
$tplcachelimit = defined("_TPLCacheLimit_") ? _TPLCacheLimit_ : 0;
$cachefile = ($tplcachepath != '' ? $tplcachepath : (defined("_TPLCachePath_") ? _TPLCachePath_ : '')).str_replace(array('/', '.'), '_', $tplfile.($userpack ? '.'.($userpackpath ? $userpackpath : '').$userpack : '')).'.php';
$cachetime = @filemtime($cachefile);
if (@filemtime($tplfile) <= $cachetime && (!$tplcachelimit || time() - $cachetime <= $tplcachelimit)) return $cachefile;
include S_ROOT.'./libs/nemo.php';
$nemotpl = new nemo;
$nemotpl->userpack = $userpack ? ($userpackpath ? $userpackpath : $tplpath).$userpack.'.php' : '';
$nemotpl->template = file_get_contents($tplfile);
$nemotpl->cachefile = $cachefile;
$nemotpl->extraparms = ',\\\''.$tplpath.'\\\',\\\''.$tplcachepath.'\\\',\\\''.$userpack.'\\\',\\\''.$userpackpath.'\\\'';
return $nemotpl->compile();
}
?>

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