Example Description:1. The shelves of this example were built in 2012 for the development of real projects, and several small and medium-sized projects have been made on this shelf. There are two different versions, one for Hibernate and one for Ibatis.2. This example is a complete shelf of SSH, including basic rights management and curd examples. Rights manageme
PHP Single example mode to realize shopping cart function-php Instance tutorial complete this small function must write the need to develop good habits PHP shopping cart development requirements function is as follows 1: Shopping cart in Session 2: Single case mode to develop function: Add or delete to increase the reduction of a commodity
PHP Single example mode realization shopping cart function-php
implement; Import Sshinterface.axe; Public class Implements axe{ public stoneaxe () {} public String Chop () { // TODO auto-generated Method stub return "Cut the tree with an axe";} }Spring provides applicationcontext.xml to organize the various beans:12Beans3Xmlns= "Http://www.springframework.org/schema/beans"4Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"5xmlns:p= "http://www.springframework.org/schema/p"6Xsi:schemalocation= "Http://www.springframewo
1. Define
A singleton pattern ensures that a class has only one instance, and instantiates it and provides this instance to the entire system globally. Instead of creating an instance copy, it returns a reference to an instance stored within a singleton class.
2. Solve the problem/use scenario
In the case of database applications, a single example pattern can be used to avoid the resources consumed by a large number of new operations.If you need a cla
PHP file read operations involve more PHP file manipulation functions than file writes, which are described in detail in code instances.
The way in which data is stored in a text file is mainly three steps and some file operation functions are as follows:
1, open the file (file operation function: fopen)2, file data read (File operation function: fgets, file, ReadFile, feof, etc.)3, close the file (file operation function: fclose)
The following is still a PHP file read and write operation cod
Example one:
/** *
Multi-File Upload * *
@author Dream
Example two:
function upload () {$config [' upload_path '] = './uploads/';
* * Here uploads is relative to the index.php, that is, the entry file, this must not be mistaken Oh!
Otherwise, the error "The upload path does not appear to be valid.";
* * $config [' allowed_types '] = ' gif|jpg|png ';
/* I try to upload
The example of this article describes the search sort method of Cgridview association table in Yii. Share to everyone for your reference. The implementation methods are as follows:
The implementation method of search sort in Yii Cgridview Association table A little complicated, today I saw a foreigner wrote a game, I would like to tidy up and share with you friends, I believe it will be helpful to the study of YII framework.
First, check your blog d
different factory method patterns. In other literatures, simple factories are often discussed as a special case of the common factory model.Learning a simple factory model is a good preparation for learning the factory method pattern, and a good preparation for learning other patterns, especially the single case pattern and multiple example patterns.
2. Introduction of Simple Factory model
For example, t
This example describes the paging usage in thinkphp. Share to everyone for your reference, specific as follows:
Take an example.
Action page:
Public function Show () {
import ("ORG.") Util.page "); Import a paging class
$news =d ("News");
$count = $news->where (' content_type ' = '. $id)->count (); The total number of bars in the query record
$p = new Page ($count,);
$list = $contac
The business logic of CodeIgniter Controller is analyzed in this paper. Share to everyone for your reference, specific as follows:
The previous analysis of the public controller by module distribution, to facilitate the control of specific modules, and the specific implementation of the class is placed in the library. Is it appropriate to put it in the library? And where is the more business logic in the controller?
First of all, the understanding of several folders in CI
Helpers, Libraries:
different library.
$DB 1 = $this->load->database (' Default ', TRUE);
$DB 2 = $this->load->database (' Test ', TRUE);
But this way need to use when the initiative to load, not very convenient, we can be implemented in the My_model constructor, the return of the $DB1 to the Ci_controller of a property, and assign the property or clone to $this->db, For example:
Public function __construct ($group _name = ')
{
parent::__constru
This article illustrates the complete implementation of database data for the introduction of CI Framework sample. is for beginners to see, this is the easiest to pass the example. Share to everyone for your reference. The implementation methods are as follows:
1. Download CI framework
2. Configure
database.php configuration:
To set the connection parameter for the database server:
Copy Code code as follows:
$db [' Default '] [' host
example implementation.
Copy Code code as follows:
public class Singleton {
private static Singleton uniqueinstance = null;
Private Singleton () {
Exists only to defeat instantiation.
}
public static Singleton getinstance () {if (uniqueinstance = null) {
Uniqueinstance = new Singleton ();
}
return uniqueinstance;
}
Other methods ...}
Singleton by restricting the construction method to private, the
The routes.php usage of codeigniter configuration is analyzed in this paper. Share to everyone for your reference, specific as follows:
An array named $route is defined in application/config/routes.php to set the default route and 404 pages and to set up some matching methods.
The default configuration is as follows:
$route [' default_controller '] = "welcome";
$route [' 404_override '] = ';
DEFAULT_CONTROLLER Specifies the default controller name, 404_override specifies the nam
A few days ago some things, so this example to write until today, why take the phplib in the DB class? Many people in the study of PHP, may be the first contact with the template is Phplib, the reason is very simple: a lot of PHP learning materials are introduced phplib,phplib in PHP3 when the fire, one of the reasons is that it achieved in PHP3 did not implement the session function, Until now there are still a lot of people using phplib template tec
The main points of a single case pattern are three:
One is that a class can have only one instance;The second is that it must create this instance by itself;Third, it must provide this example to the whole system.
Copy Code code as follows:
/* Single example mode, the main points are as follows:
*
*
1. $_instance must be declared as a static private variable* 2. Constructors and cloning functi
Js and json interaction theory and example, and jsjson theory example
The theory and skills are explained in detail, which is of great significance in practical development.
JSON syntax can represent the following three types of values.
Quiet simple value: Use the same syntax as JavaScript to represent strings, values, Boolean values, and null in JSON.
JSON does not support special undefined values in Java
Yii2 database read/write splitting configuration example, yii2 example
To start using a database, you must first configure the database connection component and add the db component to the application configuration. (the "Basic" Web application is config/web. PHP), DSN (Data Source Name) is the Name of the Data Source, used to specify the database information. as follows:
Return [//... 'components' => [//..
CodeIgniter Configuration Session Usage example analysis, Session usage example
This example describes the session usage of CodeIgniter configuration. Share to everyone for your reference, as follows:
Just use CodeIgniter when the session was also confused, and then no longer use CI since the session, presumably still need to tidy up the session. To understand t
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