global-variables

问题 I am facing issue with the global variable, when i run in the django development server it works fine, but in apache it doesn't work here is the code below: red= "/project3/test/" def showAddRecipe(request): #global objc if "userid" in request.session: objc["ErrorMsgURL"]= "" try: urlList= request.POST URL= str(urlList['url']) URL= URL.strip('http://') URL= "http://" + URL recipe= __addRecipeUrl__(URL) if (recipe == 'FailToOpenURL') or (recipe == 'Invalid-website-URL'): #request.session[

问题 I need to declare a global variable which is only available if a certain function is called. If that function is not called than that variable should not be available. void function() { // if this function is called then declare int a=10; // as global so other function can use this } How can I do such a thing in c? 回答1: C is not a dynamic language - all declared variables exist (subject to scoping rules) at all times. You cannot test whether a variable has been declared , that's the compilers

问题 I want to declare a global variable in my model and will use it accordingly. syntax below is just example how I want to use it, may not be proper syntax. But I want to know proper syntax for this to implement. global $stddata call to 1st function via ajax: add a array of data to this global variable. global $stddata = array(1=>"a",2=>"b"); after user triggers some event call to 2nd function via ajax: Access the array stored in global variable above. echo $stddata 回答1: Your question is similar

问题 here is my plugin activation code $classified_category_name = 'classified'; $credit_table_name = 'credits'; $credit_table_version = 0.1; register_activation_hook(__FILE__, 'LBH_Classifieds_Activate'); function LBH_Classifieds_Activate() { global $wpdb; global $classified_category_name; global $credit_table_name; global $credit_table_version; $table_name = $wpdb->prefix . $credit_table_name; if($wpdb->get_var("SHOW TABLES LIKE '$table_name'") != $table_name) { $sql = "CREATE TABLE " . $table

问题 I Have a WinForm with 2 Text boxes to input ServerName and Database, RadioButtons to switch between providers, and 1 Button to build ConnectionStrings depending of inputs. _ServerName and _DatabaseName are Global variables. I would like to build the connection string outside the Form and get the result returned to a label control in my Form, the code in my external class is as next: public static string _ServerName { get; set; } public static string _Base { get; set; } public static

问题 I'm creating a jenkins pipeline which is used on different environments / builds. Each Build has different parameters: deploy destination, passwords, usernames etc. I have some common settings all these builds share, which i have added in the "Jenkins" -> "Configuration" -> "Global properties" as a key value. Lets say i have added a key value par with : Name : CommonName Value : Money I now want to be able to, in my pipeline, to access this CommonName variable. I've tried everything. println

问题 This question is a continuation of the comments at Using Local Special Variables, regarding how best to avoid global variables. As I understand it, global variables are problematic mainly because they have the potential to interfere with referential transparency. Transparency is violated if an expression changes a global value using information outside its calling context (eg, a previous value of the global variable itself, or any other external values). In these cases evaluating the

问题 I've quite a few functions that uses some global variables to hold an object to be reused throughout the library, e.g.: from some.other.lib import Object1, Object2, Object3, Object4, Object5 def function1(input): global _object1 try: _object1 except NameError: _object1 = Object1 return _object1.func1(input) def function2(input): global _object2 try: _object2 except NameError: _object2 = Object2 # Use function1 to do something to the input return _object2.func2(function1(input)) def function3

问题 I basically want to know how global variables work in a javascript/JQuery environment. I am most familiar with a language called processing which I've been told is java-based. I expected variables in javascript and JQuery to behave like the ones in processing, but they do NOT work as I expect and I cannot for the life of me wrap my head around it. I have a very simple example made up to illustrate my confusion: var what=""; $(document).ready(function(){ $("p").click(function () { what="p"; })

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . According to this post Global variables in Java it describes how to define a global variables in java by using static public class Example { public static int a; public static int b; } But at same time in other post Why are there no global variables in Java? this question contradicts . So my question is what