Thursday, May 16, 2019

Redirect a page with variable in PHP with POST method

When a form submit I want to redirect to another page with some variable in the POST method.

We can't redirect page with post values in PHP directly.
In that case, there are several other options we can use. Here is one of them.

If we can use javascript as most sites are doing.

 we can do it as below.

<form name='fr' action='redirectpage.php' method='POST'>
      <input type='hidden' name='var1' value='val1'>
      <input type='hidden' name='var2' value='val2'>

<script type='text/javascript'>;

This will post all variables to redirectpage.php.

I hope this will help you.

Thursday, May 2, 2019

Dynamic PHP variable

PHP allows you to use dynamic variable names, called variable variables. You can name a variable with the value stored in another variable. That is, one variable contains the name of another variable.

$Bangladesh = 147570;
$dhaka = 11500;
$cityname = "Bangladesh";
echo "The size of $cityname is ${$cityname}";
$cityname = "dhaka";
echo "The size of $cityname is ${$cityname}";
The output from this code is
The size of Bangladesh is 147570
The size of dhaka is 11500


Saturday, January 19, 2019

Install phpmyamin in Raspberry Pi

First, install MySQL which is a free opensource database system.

sudo apt install mysql-server php-mysql
The PHPMyAdmin installation is pretty quick and easy, we simply have to use the packet manager with this command :
sudo apt install phpmyadmin
but here we're going to install phpmyadmin in a another way. go to phpmyadmin website then download as zip. unzip the copy to var/www/html path.

After install mysql go cmd to set new password for root
sudo mysql_secure_installation   
 [to set new pass type none then entry new password]

To login mysql go cmd and type
sudo mysql -p -u root 
Then add new super user to access phpmyadmin
set password for user esteemsoft
CREATE USER ‘esteemsoft’@’%’ IDENTIFIED BY ‘password’ 
Done!!! now go to localhost/phpmyadmin and enjoy....

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