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How to calculate the difference between two dates using PHP?
...mponents.
* If the interval doesn't have a time component (years, months, etc)
* That component won't be displayed.
*
* @param DateInterval $interval The interval
*
* @return string Formatted interval string.
*/
function format_interval(DateInterval $interval) {
$result = "";
if ($int...
写出高质量代码的10个Tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...。
基础的数据结构与算法,掌握好这些在解决一些特定问题时,可以以更加优雅有效的方式处理。
基础的设计原则,无需完全掌握23种经典设计模式,只需要了解一些常用的设计原则即可,甚至你也可以只了解什么是低耦合,...
mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
...been removed in php version 7.
Check $result before passing it to mysql_fetch_array. You'll find that it's false because the query failed. See the mysql_query documentation for possible return values and suggestions for how to deal with them.
$username = mysql_real_escape_string($_POST['username'...
Are global variables in PHP considered bad practice? If so, why?
...e to access values that you need, for example get_query_var() in Wordpress etc.
– user2098467
Oct 23 '15 at 2:29
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How to fix “Headers already sent” error in PHP
...eader are:
header / header_remove
session_start / session_regenerate_id
setcookie / setrawcookie
Output can be:
Unintentional:
Whitespace before <?php or after ?>
The UTF-8 Byte Order Mark specifically
Previous error messages or notices
Intentional:
print, echo and other functi...
你不得不知道的6个用好大数据的秘诀 - 资讯 - 清泛网 - 专注C/C++及内核技术
...时候,利用太复杂先进的数据分析工具往往也会带来很多问题, 不过如果我们能够通过分析大量的数据来得到最终的结果,那就不用怀疑了,你就干吧,至少方向肯定是对的。
秘诀二:要区分清楚“森林”和“树”
现在,企...
乘着App的创业浪潮 行业短信也迎来了新生和爆发 - 资讯 - 清泛网 - 专注C/C...
...新生之后,如何提升用户体验,解决消息延迟、被拦截等问题成为了行业短信面临的最大难题。
逆势崛起:验证短信迎来脱胎换骨
毫无疑问,短信正在死亡,最具有代表性的便是拜年短信。除夕是拜年短信发送的高峰,甚至...
LINUX下用PHPIZE安装PHP GD扩展 - PHP - 清泛IT论坛,有思想、有深度
...ir --with-jpeg-dir --with-gd
sudo make
make install
sudo vi /app/php5/etc/php.ini //修改PHP配置文件
extension=gd.so //添加这一行,重启PHP服务
---------------------------------------
安装gd,加上参数重新编译php也可以解决。
http://bbs...
创业公司如何实施敏捷开发 - 资讯 - 清泛网 - 专注C/C++及内核技术
...这个东西并不是神器,实施了就可以解决所有软件公司的问题,而是要结合自己公司的特点和问题摸索出适合自己的一套模式。
大家都知道,创业公司刚开始需要研发出一款产品并且能够使公司赚钱的产品,不过大部分创业公...
Best way to test for a variable's existence in PHP; isset() is clearly broken
...ng them as though they were. However, since they can be iterated, counted, etc, a missing value is not the same as one whose value is null.
The answer in this case, is to use array_key_exists() instead of isset().
Since this is takes the array to check as a function argument, PHP will still raise ...