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Why is it said that “HTTP is a stateless protocol”?
HTTP has HTTP Cookies. Cookies allow the server to track the user state, the number of connections, last connection, etc.
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Stack, Static, and Heap in C++
...c object in its destructor. For shared_ptr reference, see boost documents: http://www.boost.org/doc/libs/1_37_0/libs/smart_ptr/shared_ptr.htm
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postgresql return 0 if returned value is null
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Why does int num = Integer.getInteger(“123”) throw NullPointerException?
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From http://konigsberg.blogspot.com/2008/04/integergetinteger-are-you-kidding-me.html:
getInteger 'Determines the integer value of the system property with the specified name.'
You want this:
Integer.parseInt("123")
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整合phpcms v9和discuz X3.2实现同步登陆、退出免激活 - 更多技术 - 清泛网...
...参数配置如下：
应用名称：phpsso
应用的主 URL：http：//localhost/phpcms/phpsso_server （必填， phpcms 安装路径，视实际情况而定，最后不要带斜线）
应用 IP：（选填，正常情况下留空即可。如果由于域名解析问题导致 UCent...
User recognition without cookies or local storage
...ss
Proxy IP Address (users often use the same proxy repeatedly)
Cookies
HTTP Cookies
Session Cookies
3rd Party Cookies
Flash Cookies (most people don't know how to delete these)
Web Bugs (less reliable because bugs get fixed, but still useful)
PDF Bug
Flash Bug
Java Bug
Browsers
Click Track...
Reintegrate can only be used if revisions X through Y were previously merged from to reintegra
...ranch if you get a message something like this:
$ svn merge --reintegrate https://server.blah/source/orb/branches/bronze_services
svn: Reintegrate can only be used if revisions 650 through 694 were previously merged from
https://server.blah/source/orb/trunk to the reintegrate source, but this ...
How to click or tap on a TextView text
...t;?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout android:id="@+id/LinearLayout01" android:layout_width...
Can I record/play macros in Visual Studio 2012/2013/2015/2017/2019?
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Stand out and vote for bringing macros back!
http://visualstudio.uservoice.com/forums/121579-visual-studio/suggestions/2650757-bring-back-macros
UPDATE (10/4/2013):
Yay! Thank to your votes the macros are now considered for return! Keep pushing!
We are currently review...
Why would one omit the close tag?
...st sed/awk or regex-oneliners). In particular:
phptags tag tidier
https://fossil.include-once.org/phptags/
Which could generally be used to --unclose php tags for third-party code, or rather just fix any (and all) actual whitespace/BOM issues:
phptags --warn --whitespace *.php
It al...