global

PHP global variables across files

由 我只是一个虾纸丫 提交于 2019-12-01 17:49:36
问题 Ok, maybe my brain is just shut off, but I can't get this to work. Here's the complete code: Page1.php: <?php $something = "hello"; include "Page2.php"; ?> Page2.php: <?php echo $something; ?> Desired output (when navigating to Page1.php): hello The real output is blank. I have tried putting the global keyword everywhere, and nothing happens. Am I missing something? 回答1: I cannot replicate this error, just tried this on my localhost and copied and pasted your code from here. I suspect you

Is there a way to identify all the unused global variable in a C project?

由 青春壹個敷衍的年華 提交于 2019-12-01 16:26:13
I'm cleaning up some C code. There are global variables everywhere, but not all of them are used. I want to clean up those. But it's too much work to test them one by one. Is there are easy way to do that? sarnold You can generate a list of all global variables in your directory using the very helpful ctags(1) command with the -x command line option: ctags -x --c-kinds=v --file-scope=no *.c This can be combined with the also-helpful gid(1) command (assuming you've run mkid(1) on your sources first): for name in `ctags -x --c-kinds=v --file-scope=no *.c | awk '{print $1;}' | sort -u` ; do gid

Global variable extend application class

由 筅森魡賤 提交于 2019-12-01 12:51:37
问题 So I am trying extend the base Application class and add member variables to create global variables like in this first solution of the link below. Android global variable This works if the member variable is a simple data type like a String or a Boolean . But how would you do it for a more complex data type? In my case i would like the member variable to be of type HashMap<String, Boolean> . I am setting three member variables in onActivityResult() (a boolean, a String , and a HashMap<String

Accessing variables in other functions in Python

由 天涯浪子 提交于 2019-12-01 12:47:24
问题 I'm new to python coming from a Java background and was wondering how to access variables from one function to another in Python. From this code: def method1(): var1 = randomArray[::2] var2 = randomArray[1::2] return var1 return var2 def method2(): for i in range (len(var1)): print i I would get error message: NameError: global name 'var1' is not defined Forgive the code, I'm just providing an example. Any advice on how to use var1 in method 2 would be of great help. Thanks. Edit: class

Issue with PHP include with global path

由 心已入冬 提交于 2019-12-01 11:40:32
问题 I have been facing an issue with the PHP includes. Based on the readings from internet, I have been using relative path to have the flexibility around. As long as I refer to a path directly in each file, like require_once '../includes/connection.php'; // it works fine. The issue starts when I refer to this path with a global constant require_once getDocumentRoot() . '/includes/connection.php', as it says the below error. Warning: require_once(/phpPractices/myApp/includes/connection.php):

swift global constants: cannot use another constant for initialization

由 南楼画角 提交于 2019-12-01 10:59:53
Here is what I am trying to do: class ViewController: UIViewController { let screenRect: CGRect = UIScreen.mainScreen().bounds let screenWidth = screenRect.width; let screenHeight = screenRect.height; let screenX = screenRect.origin.x let screenY = screenRect.origin.y override func viewDidLoad() { ...and so on Swift allows me to declare screenRect . However, it does not allow me to declare any other constants using this. It shows me the error: 'ViewController.Type' does not have a member named 'screenRect' How do I define these constants and why does not swift allow me to use another constnt

Global variables in modern C++

由 ↘锁芯ラ 提交于 2019-12-01 10:48:56
What are the (objective) disadvantages of creating a class where all members (attributes, functions) are static? In particular in comparison with the use of a namespace? Or would you rather create global variables/functions? I like creating static attributes because I find them "tidier." (I know exactly where they come from, etc.) I'm not very familiar with namespaces. And I'm not comfortable at all with global variables, because I'm not very familiar with C keywords such as extern and static . Further, if we consider the class class MyStaticClass { private: static int x; static double y;

C++ Global variables and initialization order

由 折月煮酒 提交于 2019-12-01 10:33:37
问题 Let's say, I've got a following simple code: Main.cpp #include "A.h" // For several reasons this must be a global variable in the project A a1; int _tmain(int argc, _TCHAR* argv[]) { // Another stuff return 0; } A.h #pragma once #include <string> class A { private: // The following works normal if we use simple types like int and etc. static std::string myString; public: A(); }; A.cpp #include "stdafx.h" #include "A.h" // This executes after A::A(), so we are losing all the modifyed content /

Global variables in modern C++

由 拈花ヽ惹草 提交于 2019-12-01 09:42:39
问题 What are the (objective) disadvantages of creating a class where all members (attributes, functions) are static? In particular in comparison with the use of a namespace? Or would you rather create global variables/functions? I like creating static attributes because I find them "tidier." (I know exactly where they come from, etc.) I'm not very familiar with namespaces. And I'm not comfortable at all with global variables, because I'm not very familiar with C keywords such as extern and static

Global Variables between different modules

由 我是研究僧i 提交于 2019-12-01 09:40:45
main.py: from module import * var=10 def func2(): print "func2:" ,var def main(): global var var=20 print "main - before", var func2() func1() print "main - after", var if __name__=='__main__': main() module.py from main import * def func1(): global var print "func1:", var The program prints: main - before: 20 func2: 20 func1: 10 main - after 20 'var' is a global variable. I would expect that the moment I change var's value, it will be changed wherever the variable 'var' appears. The only difference between func1 and func2 is that func1 is in another module. Still, I don't understand why the
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