First important point is that
Module_Rewrite is enabled on your server(LAMP,WAMP,XAMP..etc)
For do URL rewiring in yii2 framework Create one .htaccess file and put in /web folder
RewriteEngine on
# If a directory or a file exists, use it directly
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# Otherwise forward it to index.php
RewriteRule . index.php
second step
config folder common/config/main-local.php
add to components array
'urlManager' => [
'class' => 'yiiwebUrlManager',
// Disable index.php
'showScriptName' => false,
// Disable r= routes
'enablePrettyUrl' => true,
'rules' => array(
'<controller:w+>/<id:d+>' => '/view',
'<controller:w+>/<action:w+>/<id:d+>' => '/',
'<controller:w+>/<action:w+>' => '/',
),
],