PHP implementation get and set User access page language class, PHP page _php tutorial

PHP implementation get and set User access page language class, PHP page

This article describes the implementation of PHP to get and set the user Access page language class, share to everyone for your reference. The specific analysis is as follows:

The instance user Language Class gets/sets the page language that the user accesses, and if the user does not set the access language, reads Accept-language. Display the corresponding page according to the language selected by the user (English, Simplified Chinese, Traditional Chinese)

The UserLang.class.php class file is as follows:

<?php/** user Language Class gets/sets the language of the page that users access, reads Accept-language * date:2014-05-26 * author:fdipzone * If the user does not have set access language ver:1.0 * Func: * Public get get user access language * Public set Set User access language * Private Getacceptlanguage get HTTP_ACC  Ept_language */Class userlang{//class start private $name = ' userlang ';//cookie name private $expire = 2592000; Cookie expire/** initialization * @param String $name cookie name * @param int $expire Cookie expire */PU     Blic function __construct ($name = ", $expire =null) {//Set cookie name if ($name! =") {$this->name = $name; }//Set cookie expire if (Is_numeric ($expire) && $expire >0) {$this->expire = intval ($expire     ); }}/** gets the user access language */Public function get () {//To determine if the user has set the language if (isset ($_cookie[$this->name])) {$lan     g = $_cookie[$this->name];     }else{$lang = $this->getacceptlanguage ();   } return $lang; }/** Set User access language * @paraM String $lang User Access language */Public function set ($lang = ') {$lang = Strtolower ($lang); can only be in English, Simplified Chinese, Traditional Chinese if (In_array ($lang, Array (' en ', ' SC ', ' TC ')) {Setcookie ($this->name, $lang, Time () + $this-&gt     ; expire); }}/** gets http_accept_language */Private Function Getacceptlanguage () {$lang = Strtolower ($_server[' HTTP_ACC      Ept_language ']);     if (In_array (substr ($lang, 0,5), Array (' ZH-TW ', ' Zh_hk '))) {$lang = ' TC ';     }elseif (In_array (substr ($lang, 0,5), Array (' ZH-CN ', ' ZH-SG ')) {$lang = ' SC ';     }else{$lang = ' en ';   } return $lang;  }}//class end?>

The Demo sample program is as follows:

<?php  require "UserLang.class.php";  $obj = new Userlang (' Sitelang ', 3600); echo $obj->get (). '
';?>

I hope this article will be helpful for you to learn PHP programming.

PHP How to implement restrictions on user access, such as a is the login page, B is to display the user Information page, how to let the user only through a to access B?

In the B page, you can determine the value of $_server[' Http_referer ' to get access from a, you can write the following code:
echo $_server[' Http_referer '];
if ($_server[' http_referer ']!= ' normal access to the contents shown above ') exit;

How to use PHP and HTML to access the database in the Web page and implement user login?

Say the main use of the function bar, the specific code, depends on your own requirements, but also a lot.

mysql_connect () This function is used to connect the MySQL database
mysql_query () This function is used to execute the SQL statement, the user logged in, here to query the database there is no user name and password and user input are the same record, there is a validation.
Mysql_fetch_array ()
HTML section:

</form>

Specifically, read the manual or look for an example.
 

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