arrays

1. Merging arraysThe Array_merge () function merges the arrays together, returning a federated array. The resulting array begins with the first input array parameter and is forced in the order in which the following array parameters appear. In the

Listing 1. Simple Roll Roll Device Many games and game systems need dice. Let's start with the simple part: roll a six-sided dice. In fact, scrolling a six-sided dice is a random number from 1 to 6. In PHP, this is very simple: echo rand (1,6);. In

/** * Rewind the array's internal pointer back to a * @param array & $arr * @return Mixed returns the value of the previous cell and returns FALSE when there are no more units * If the array contains an empty cell, or if the value of the cell is 0,

Array ("Key" => "value"); Display array Print_r ($array); Use the compact () function to create a new array and make the argument a cell of the new array; $newArray = Compact ("Red", "green", "yellow", "Blue", "array"); Use the Extract ()

Project polymorphism Polymorphism is the ability of an object to decide which object to invoke, based on the parameters of the object passed at run time. For example If you have a figure class, it defines a draw method. and derived the circle and

Random | Show presumably you'll use JavaScript to randomly display pictures. But what if the information of the picture (such as links) is constantly changing, or modified and added by the user? I have a way here. Put the picture information (such

function | Array (Coolman) PHP is one of the most popular server-side script languages because of its fast, reliable, cross-platform application and open source code, and today I talk to you about the application of array-related functions in PHP4.0

c++| Object | array problem: public class Test { public static void Main (string[] args) { Person[] A = new person[2]; for (int i = 0; i { A[i].age = i; Null pointer exception System.out.println (A[i].age); } } } Class Person { public int age;

First, see the simplest situation. There are two arrays: Copy CodeThe code is as follows: $arr 1 = array (1,9,5); $arr 2 = array (6,2,4); Array_multisort ($arr 1, $arr 2); Print_r ($arr 1); The order to get is 1,5,9 Print_r ($arr 2); The order to

So when I see this article, I just know that, there is a DBA function can be used, ah, a careful look at the DBA this function of the installtion, found that support Inifile is also from the PHP5 to begin to realize. Well, the corresponding DBA can

Program first, remoting Foundation What is remoting, in short, we can look at it as a distributed approach. From the perspective of Microsoft's products, it can be said that remoting is an upgrade of DCOM, it improved a lot of functions, and

js| Create | graphics There is a technology that produces neat, fine-grained histograms in Java Server Pages (JSPs) that can be used as a reusable background. In order to achieve the purpose of reusability, you need to make the size of the graphics

Oracle Area information for SGA The SGA (System global Area) global zone is combined with some of the necessary background processes called instances (Instance). said it is the global zone is comprised of global variables and data structures, and

Dim id Id=request.querystring ("id") Dim Myfso Set Myfso=createobject ("Scripting.FileSystemObject") If Myfso. FileExists (Server.MapPath ("./news_content/" &id& "TXT")) Then Myfso. DeleteFile (Server.MapPath ("./news_content/" &id& ". txt")) ' #####

cgi|dhtml| Client Client cgi--combine JavaScript, DHTML to implement BackOffice of BBS (only once with server). Recently saw a lot of friends asked about the form element operation problem, the following I wrote a BBS BackOffice part of the post to

1. ArrayThe PHP array is actually an associative array, or a hash table. PHP does not need to declare the size of an array in advance, and you can create an array in a way that is directly assignable. For example: Most traditional, use numbers to do

Instance 7: Array value basic operations Copy CodeThe code is as follows: $arr =array (' A ' => ' you ', ' B ' => ' me ', ' he '); $arr []= "Other"; echo $arr [' B ']. "; $arr [' C ']= '];/to a null value, but still occupy the position of echo

Instance 15 directory creation, deletion Copy CodeThe code is as follows: $dirfile = "folder"; $dirfile =iconv ("UTF-8", "GB2312", $dirfile);//transcoding, otherwise you will see the inside of Windows is garbled, but the program can operate

Recursion | currency | chinese | conversion Recently because of the project reason, need to write a currency number conversion Chinese algorithm, first in the net looked for a moment, the results found that none of the columns are replaced by the

As a mid-level Phper rookie. Bored to love in the various PHP forums blindly turn. See a lot of PHP beginners have asked many of the same questions. And I have encountered it when I was learning PHP. Let PHP beginners take some detours. So suddenly