Categoria: php

Pubblicato il

set a variable php from another webpage

This can be useful to build a multilingual website. The code is very simple. Suppose to have a variable lang of the body of you pages. Something like this:

<body lang="<?php if(empty($lang)) {echo "it";} else {echo"$lang";} ?>">

And suppose that you want set the lang (language) of the target page from a link in a starting page.

You can use a code like the following

In the starting (aaa.1.php): 

<p><a href="aaa.2.php?setlang=en">eng</a><br /><a href="aaa.2.php?setlang=it">ita</a><br /><a href="aaa.2.php?setlang=es">esp</a></p>

In the target page (aaa.2.php):

<?php
$lang = $_GET['setlang'];
?>
<html>
 <body lang="<?php if(empty($lang)) {echo "it";} else {echo"$lang";} ?>">
<p>your content here</p>
Pubblicato il

leaving xampp

For many years I used xampp (for Linux: Lampp), because of its simplicity, unlike the “native” Linux apache/php/mysql apps, wich seemed to me very difficult to configure.

The pro of xampp is its simplicity (with few mouse clicks you can do all to install and configure your local php/mysql sever). But the con is that your xampp apps don’t are updated regularly, and there can raise conflicts with Linux “native” mysql.

Therefore I decided to learn how to configure “native” (system-rooted, so to say) apache/php/mysql apps. I chose to install mariadb and not mysql.

And in these last weeks I managed to configure the server, with the following steps:

  • sudo apt install -y apache2
  • sudo apt install -y php
  • sudo apt install mariadb*
  • sudo mysql_secure_installation
  • sudo mysql -u root -p (and within >mysql shell
    • use mysql
    • GRANT ALL PRIVILEGES ON . TO 'root'@'localhost' WITH GRANT OPTION;
    • SHOW GRANTS FOR 'root'@localhost; //to check if it is all right
    • FLUSH PRIVILEGES;
    • exit;
  • sudo systemctl enable mariadb.service

Pubblicato il

How to switch a php variable according to the server address

I managed to switch my websites links (containing a php variable: $root) according to the server address. If they are in localhost the variable begins with: http://localhost , if they are on remote the variable is the remote address.

The php code is quite simple:

if ($_SERVER['SERVER_NAME'] == "localhost")
{$root_yourwebsiteA = "http://localhost/your path/yourwebsiteA/";
 $root_yourwebsiteB = "http://localhost/your path/yourwebsiteB/";
 $root_yourwebsiteC = "http://localhost/your path/yourwebsiteC/";
}
else 
{$root_yourwebsiteA = "http://remote path/yourwebsiteA/";
 $root_yourwebsiteB = "http://remote path/yourwebsiteB/";
 $root_yourwebsiteC = "http://remote path/yourwebsiteC/";
}