快捷導(dǎo)航

PHP跨時(shí)區(qū)(UTC時(shí)間)應(yīng)用解決方案

更新時(shí)間：2013年01月11日 11:49:15 作者：

解決PHP跨時(shí)區(qū)應(yīng)用需要將將程序內(nèi)部時(shí)區(qū)設(shè)置為UTC時(shí)間.(UTC 也可以叫 GMT) 數(shù)據(jù)庫(kù)中存儲(chǔ)UTC時(shí)間等等，感興趣的朋友可以了解下

1.將程序內(nèi)部時(shí)區(qū)設(shè)置為UTC時(shí)間.(UTC 也可以叫 GMT)
PHP設(shè)置:
date_default_timezone_set("UTC");
Yii設(shè)置:
config/main.php 中添加 :'timeZone'=>'UTC',
如此設(shè)置后,PHP生成的時(shí)間基本都是UTC時(shí)間了.例如:
//輸出當(dāng)前UTC時(shí)間
date("Y-m-d H:i:s");

2.數(shù)據(jù)庫(kù)中存儲(chǔ)UTC時(shí)間.
可以用PHP控制,也可以通過設(shè)置數(shù)據(jù)庫(kù)時(shí)區(qū)來實(shí)現(xiàn).

3.服務(wù)端發(fā)送到前端的時(shí)間均為UTC時(shí)間格式, 由JS將其轉(zhuǎn)換為本地時(shí)間后進(jìn)行顯示.JS內(nèi)部數(shù)據(jù)與顯示數(shù)據(jù)分離.
JS轉(zhuǎn)換函數(shù)參考:

復(fù)制代碼代碼如下:

 
/** 
* 將UTC時(shí)間轉(zhuǎn)為本地時(shí)間 
* @param string utcTime utc時(shí)間字符串 格式 :'Y-m-d H:i:s' 
* @return string 本地時(shí)間字符串 格式 :'Y-m-d H:i:s' 
*/ 
function utcToLocal(utcTime) { 
if(utcTime==='0000-00-00 00:00:00' || utcTime===null || utcTime==='' || utcTime===undefined) 
return utcTime; 
var locTime = new Date(); //local時(shí)間對(duì)象 
utcTime=utcTime.replace("-", "/").replace("-", "/"); //火狐不兼容'-'分隔日期 
//解析字符串及本地時(shí)間賦值 
locTime.setTime(Date.parse(utcTime)-locTime.getTimezoneOffset()*60000); 
//本地時(shí)間字符串格式化 
var year = locTime.getFullYear(); 
var month = preZero(locTime.getMonth()+1); 
var date = preZero(locTime.getDate()); 
var hour = preZero(locTime.getHours()); 
var minute = preZero(locTime.getMinutes()); 
var second = preZero(locTime.getSeconds()); 
return year+'-'+month+'-'+date+' '+hour+':'+minute+':'+second; 
} 
/** 
* 將本地時(shí)間轉(zhuǎn)為UTC時(shí)間 
* @param string locTime utc時(shí)間字符串 格式 :'Y-m-d H:i:s' 
* @return string 本地時(shí)間字符串 格式 :'Y-m-d H:i:s' 
*/ 
function localToUtc(locTime) { 
if(locTime==='0000-00-00 00:00:00' || locTime==='0000-00-00' || locTime===null || locTime==='' || locTime===undefined) 
return locTime; 
var tmpTime = new Date(); 
var utcTime = new Date(); 
locTime=locTime.replace("-", "/").replace("-", "/"); //火狐不兼容'-'分隔日期 
//解析字符串 
tmpTime.setTime(Date.parse(locTime)); 
if(locTime.length>10) { 
var year = tmpTime.getUTCFullYear(); 
var month = preZero(tmpTime.getUTCMonth()+1); 
var date = preZero(tmpTime.getUTCDate()); 
var hour = preZero(tmpTime.getUTCHours()); 
var minute = preZero(tmpTime.getUTCMinutes()); 
var second = preZero(tmpTime.getUTCSeconds()); 
return year+'-'+month+'-'+date +' '+hour+':'+minute+':'+second; 
} else { 
//設(shè)置日期,保留本地時(shí)間(供UTC轉(zhuǎn)換用) 
utcTime.setFullYear(tmpTime.getFullYear()); 
utcTime.setMonth(tmpTime.getMonth());utcTime.setMonth(tmpTime.getMonth());//?若不重復(fù),則賦值無效 
utcTime.setDate(tmpTime.getDate()); 
var year = utcTime.getUTCFullYear(); 
var month = preZero(utcTime.getUTCMonth()+1); 
var date = preZero(utcTime.getUTCDate()); 
return year+'-'+month+'-'+date; 
} 
} 
//單個(gè)數(shù)字添加前導(dǎo)0 
function preZero(str) { 
return str.toString().length<2 ? '0'+str : str; 
} 