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How to check for null in Twig?
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In addition, unlike the PHP isset() function, is defined will return true if a variable is defined and it's value is null.
– Pavel Petrov
Sep 19 '17 at 7:59
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How to fix “Headers already sent” error in PHP
... / 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 functions producing output
Raw <html> sections prior <?php code.
Why does it...
How to calculate the bounding box for a given lat/lng location?
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Here is a PHP implementation from the specification found at JanMatuschek.de: github.com/anthonymartin/GeoLocation.class.php
– Anthony Martin
Dec 3 '12 at 14:10
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Passing an Array as Arguments, not an Array, in PHP
I seem to remember that in PHP there is a way to pass an array as a list of arguments for a function, dereferencing the array into the standard func($arg1, $arg2) manner. But now I'm lost on how to do it. I recall the manner of passing by reference, how to "glob" incoming parameters ... but not ...
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...
Null vs. False vs. 0 in PHP
...other good "nothing" entities.
What is the difference, specifically in PHP? Does it have something to do with === ?
1...
Can an Option in a Select tag carry multiple values?
... options in a HTML form:
(the data will be collected and processed using PHP)
15 Answers
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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...
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...
DoModal() 不显示的问题总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
DoModal() 不显示的问题总结int nResponse = dlg.DoModal();对话框窗口不显示，返回值为-1。出现这种情况一般是.rc资源文件的问题导致。1、核对一下resource.h，本...int nResponse = dlg.DoModal();对话框窗口不显示，返回值为-1。
出现这种情况一...