php学习小结-date
php学习总结-date
在用PHP5.3以上的PHP版本时,只要是涉及时间的会报一个错误
echo date("D")."******";
?>
输出如下
"PHP Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'UTC' for '8.0/no DST' instead in"
以下答案为我查找的http://blog.sina.com.cn/s/blog_5cd54bb40100n0tg.html
实际上,从 PHP 5.1.0 ,当对使用date()等函数时,如果timezone设置不正确,在每一次调用时间函数时,都会产生E_NOTICE 或者 E_WARNING 信息。而又在php5.1.0中,date.timezone这个选项,默认情况下是关闭的,无论用什么php命令都是格林威治标准时间,但是PHP5.3中好像如果没有设置也会强行抛出了这个错误的,解决此问题,只要本地化一下,就行了。
以下是三种方法(任选一种都行):
一、在页头使用date_default_timezone_set()设置 date_default_timezone_set('PRC'); //东八时区 echo date('Y-m-d H:i:s');
二、在页头使用 ini_set('date.timezone','Asia/Shanghai');
三、修改php.ini。打开php5.ini查找date.timezone 去掉前面的分号修改成为:date.timezone =PRC
重启http服务(如apache2或iis等)即可。
XXX可以任意正确的值。对于我们国内来说:可以为以下值:Asia/Chongqing ,Asia/Shanghai ,Asia/Urumqi (依次为重庆,上海,乌鲁木齐)港台地区可用:Asia/Macao ,Asia/Hong_Kong ,Asia/Taipei (依次为澳门,香港,台北),还有新加坡:Asia/Singapore,当然PRC也行。
PRC:中华人民共和国的英文翻译 the People's Republic of China
UTC:协调世界时--coordinated universal time;UTC ,与世界时差一秒内

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