dynamic

问题 I need to be able to use prepared MYSQLI statements for security reasons. I need to be able to ORDER BY COLUMNNAME DIRECTION However, the COLUMNNAME is DYNAMIC as is the DIRECTION (ASC/DESC) When I bind mysqli parameters I get 'COLUMNNAME' 'ASC' or 'COLUMNNAME' 'DESC' Whereas what I need is NO QUOTES........ Is there anyway to do this? I have seen someone ask something similar in Are PHP MySQLi prepared queries with bound parameters secure? 回答1: It is not possible to use parameter binding for

问题 All, I have the following array and function, which will create a multidimensional array based on array key's that you specific. For every attribute you pass to the function, it will add another dimension to the array. Think of it as array sorting. The function supplied works great, but it uses eval, I had a hard time coming up with a function which was consistent and threw no errors without it. Let's start with an array: $array = array( array(‘name’ => ‘Person1’, ‘username’ => ‘username1’,

问题 In c++, I can create a 2D array with fixed number of columns, say 5, as follows: char (*c)[5]; then I can allocate memory for rows as follows c = new char[n][5]; where n can be any variable which can be assigned value even at run time. I would like to know whether and how can I dynamically allocate variable amount of memory to each row with this method. i.e. I want to use first statement as such but can modify the second statement. 回答1: Instead of a pointer to an array, you'd make a pointer

问题 I'd like to be able to loop through a list of xml layout files instead of having to specify a particular one in the setContentView argument. Obviously the types are incorrect, but something like: ArrayList<String> pages = new ArrayList<String>(); //(Where each of the xml pages are stored like R.layout.page1, R.layout.page2, etc) setContentView(pages.get(0)); Is this possible somehow? 回答1: You should use the ViewFlipper widget instead. Here is an example. It is cleaner to manage the content

问题 I'm working on a dynamic application with NHibernate. My goal is to create dynamic entities (both class type and mapping xml file) based on some data. For example suppose I want to create a Person entity dynamically in runtime and on the fly. I use Reflection.Emit to generate class type dynamically. For creating mapping dynamically I used Ayende's code.. But unfortunately this code does not work because mappings does not have Classes property. I tried to code as same as codes of Castle

问题 I am trying to write a Java file that receives the source code of a MapReduce job, compiles it dynamically and runs the job on a Hadoop cluster. To reach this, I have written 3 methods called compile(), makeJAR() and run_Hadoop_Job(). Everything works fine with the compilation and creation of the JAR file. However, when the job is submitted to Hadoop, as soon as the job starts, it faces problem with finding required Mapper/Reducer classes and throws a ClassNotFoundException for both the

问题 Context: Building an app that populates a table that takes in data from a asyc json dump. The cells are of a custom class (I defined). The main label in the cell can be very long. It is "placed" in storyboard within a prototype cell but customized via code (pretty standard stuff). Labels are resized in cellForRowAtIndexPath and rows are resized via heightForRowAtIndexPath -- rows are resized by forcing a call to cellForRowAtIndex like Massimo's answer here So per the question at hand - I've

问题 A few days ago, I asked a question regarding dynamically modifying a function's code midway through the outerlying script's execution and I was told to completely forget ever coming upon the notion. I'm not sure I understand why that is. Let me give an example: <script> var display = function(msg) { alert(msg); } // Now, at the moment, the display() function // is receiving a single parameter and alerting // it to the user. I'm now going to use eval() // to modify the display() function. eval

问题 This is a new attempt to pose a version of a question asked less successfully this morning. Consider the following program, which we'll run once inside Visual Studio 2010 and once more by double-clicking the executable directly namespace ConsoleApplication3 { delegate void myFoo(int i, string s); class Program { static void Main(string[] args) { Foo(1, "hello"); Delegate Food = (myFoo)Foo; Food.DynamicInvoke(new object[] { 2, null }); } static void Foo(int i, string s) { Console.WriteLine("If

问题 I'm building a MDI WEB application, and have a window created made by a article element, with a header and a section for content. Since it's an MDI app, the article is set to absolute , so it can overlap other windows. I need a scrollbar to appear in the content section, but not in the header . <article id="win3"> <header> … </header> <section> … </section> </article> CSS: article { position: absolute; min-width: 500px; width: 918px; margin: 0px; padding: 0px; overflow: hidden; background