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What is the most accurate way to retrieve a user's correct IP address in PHP?

... We use: /** * Get the customer's IP address. * * @return string */ public function getIpAddress() { if (!empty($_SERVER['HTTP_CLIENT_IP'])) { return $_SERVER['HTTP_CLIENT_IP']; } else if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ips = explode(',', $_SER...
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RESTful call in Java

...rns you an InputStream. You will then have to convert your input stream to string and parse the string into it's representative object (e.g. XML, JSON, etc). Alternatively, Apache HttpClient (version 4 is the latest). It's more stable and robust than java's default URLConnection and it supports mos...
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Cast int to varchar

I have below query and need to cast id to varchar 8 Answers 8 ...
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Finding the type of an object in C++

...add that you can find the class type with: #include <typeinfo> ... string s = typeid(YourClass).name() share | improve this answer | follow | ...
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How to activate “Share” button in android app?

...android.content.Intent.ACTION_SEND); sharingIntent.setType("text/plain"); String shareBody = "Here is the share content body"; sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Subject Here"); sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody); startActivity(Intent.cre...
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Regular expressions in an Objective-C Cocoa application

...to your project. (My complaint against RegExKitLite is that it extends NSString via category, but it can be considered as a feature too. Also it uses the nonpublic ICU libraries shipped with the OS, which isn't recommended by Apple.) ...
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Catch Ctrl-C in C

... (1) pause(); return 0; } void INThandler(int sig) { char c; signal(sig, SIG_IGN); printf("OUCH, did you hit Ctrl-C?\n" "Do you really want to quit? [y/n] "); c = getchar(); if (c == 'y' || c == 'Y') exit(0); else signa...
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App Inventor 2 串口通信教程 - USB串口与蓝牙串口 · App Inventor 2 中文网

...块接收数据(来自手机 App) if (Serial.available() > 0) { char command = Serial.read(); switch (command) { case '1': // 打开 LED digitalWrite(13, HIGH); Serial.println("LED ON"); break; case '0': // 关闭 LED digital...
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Scalar vs. primitive data type - are they the same thing?

... structs, etc. A scalar is a "single" value - integer, boolean, perhaps a string - while a compound is made up of multiple scalars (and possibly references to other compounds). "Scalar" is used in contexts where the relevant distinction is between single/simple/atomic values and compound values. ...
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Parse JSON in C#

...xt, although there are a number of examples out there with simplified JSON strings. 7 Answers ...