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  strange thing in PHP session variable and local variable

A few minutes ago, I noticed one strange thing when I did my PHP web application development.The situation is described below:I want to display a user's profile using a query parameter user=user_id as the parameter. And also the session variable when user logs in  is $_SESSION["user"].So before displaying the user's profile, I need to either get the query string parameter user and create a local variable called $user and assign value to it as $user=$_REQUEST["user"].Here comes the strange t...

   PHP,session,variable name,change automat     2011-06-13 12:23:59

  Twitter user database is hacked

According to Sina Tech, One hacker from Islamic Republic of Mauritania claimed today that he had acquired Twitter's entire user database and he shared over 15000 user account information on file sharing website Zippyshare.These information include the name of each account on Twitter, username and access tokens of third-party applications which have access to their Twitter accounts(such as Instagram or HootSuite).Twitter has yet to comment on the matter, but the company sent messages urging ...

   Twitter,Hacker,Access token     2013-08-20 10:49:44

  Short SASS tutorial

If you learned CSS before, you should know that CSS is not a programming language. You can use it to design webpage style, but you cannot use it for programming, i.e, CSS is what designer uses, not what programmer uses. Programmer may think that CSS is very troublesome, it has no variables, no conditional statements, it just allows line-by-line description of HTML elementsLuckily, CSS preprocessor appear which makes CSS programmable. The general idea of CSS preprocessor is using a programming la...

   CSS,SASS,programmable,variable,condition,comment     2012-06-22 08:38:18

  Groupon share price grows by 23% because of Google

There have been rumors that Google will acquire Groupon. This rumor makes Groupon's share price soar 23% in three weeks.Groupon's share price closed at $4.69 yesterday, which is Groupon's highest price since October 19. Since November 2011 IPO, Groupon's share price dropped 77%.Telsey Advisory Group analyst Tom Forte said Groupon's market capitalization shrunk to $3.07 billion, It's possible that Google may choose to acquire Groupon at this time. In fact, after there was news that Google was con...

   Groupon, Google, acquisition     2012-12-08 04:02:28

  20 bit operations programmers should know

While talking about bit operation, programmers usually think about its efficiency. In embedded programming and system core optimization, appropriate use of bit operations is always a fascinating. When finding a job, it will help you a lot if you use bit operations when writing codes. Mastering simple bit arithmetic skills is necessary. 1. Get maximum int value int getMaxInt(){           return (1 << 31) - 1;//...

   Bit operation, Tips     2012-12-19 12:53:33

  Use cases of Java enumeration

JDK 1.5 introduces a new type -- enumeration. In Java, it's just a small feature, but it can bring us much convenience.Here we summarize some use cases of Java enumeration. 1. Constant Prior to JDK 1.5, we can define constant as public static final..., now we can use enumeration to group all constants in one enum variable and it also provides some useful functions. public enum Color {     RED, GREEN, BLANK, YELLOW   }  2.In Swit...

   Java, Enum,enumeration     2013-01-05 09:15:30

  When will Google be back to China?

There will be news about Google returning back to China every now and then since the search giant left China in 2010. Every sign of change about Google in China will give people big hope on its return. But Chinese are still waiting for the dream to become true though nothing real happen until now. On Thursday, it seems there is "proof" again that Google is going back to China. In the morning, many Chinese noticed that the official Google China weibo(China's Twitter) account uploaded a photo with...

   GOOGLE,CHINA,SEARCH ENGINE,BAIDU     2017-03-02 09:39:51

  Handle ”cannot modify header information – headers already sent by”

Man PHP developers should encounter ”Warning: Cannot modify header information – headers already sent by ….” error before when executing a PHP script. Here are some solutions to this error. 1. Blank line Check whether there is any blank line after , especially in the files which are used in include() and require(0, some problems are caused by blank lines. 2. Add exit() after head() header (“Location: xxx”); exit(); 3. Use output cache <?php ob_start(); ...

   header sent, PHP error handle     2012-11-17 08:45:22

  The video Twitter is coming

 Last October, Vine was acquired by Twitter before it released. Now Twitter launched this app. Vine only supports 6 seconds video recording, when you tap on the screen, the video recording starts, when you finger leaves the screen, the video recording stops. It can contain a few frames in 6 seconds. You can share the video on Twitter and Facebook. Vine seems like a video version of Instagram because it allows user to record video and share it. It has the same features as Instagram such as L...

   Twitter,Vine,Video Twitter     2013-01-25 05:10:29

  Using MySQL Connector/C++ with Visual Studio 2010

MySQL Connector/C++ is one of the latest connectors for MySQL, developed by Sun Microsystems. The MySQL connector for C++ provides an object-oriented application programming interface (API) and a database driver for connecting C++ applications to the MySQL Server.When we want to build a database application with C++ using Visual Studio 2010, we may use the MySQL Connector/C++, but sometimes we may encounter different errors, either compile or runtime error. After tried many times, I finally made...

   MySQL Connector,C++,Visual Studio 2010,VS2010     2012-06-01 13:52:20

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