Receive 404 after uncomment enablePrettyUrl YII2 - php

Question

After uncomment enablePrettyUrl get 404 error
For example:
The requested URL /site/index was not found on this server.
Apache/2.4.7 (Ubuntu) Server at yiibasic.com Port 80
When I comment it again, everything is working
'components' => [
'urlManager' => [
'enablePrettyUrl' => true,
'showScriptName' => false,
'rules' => [
],
],
]
Can't understand what the problem is.
.htaccess:
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . index.php

Answer 1

The (Yii2) URL manager supports two URL formats:
the default URL format;
the pretty URL format.
By default 'enablePrettyUrl' is set to false this mean that the url have the format
your/index.php?r=post%2Fview&id=100
If you uncomment 'enablePrettyUrl' => true,
'components' => [
'urlManager' => [
//'enablePrettyUrl' => true,
'showScriptName' => false,
'rules' => [
],
],
]
you enable the format for prettyUrl like:
/index.php/post/100
like as you easy see the two format are different so an explict call based on a format return a 404 error .. when you change the urlManager format enabling or disabling pretty url ..
you can call the url avoiding this problem using urlHelper
use yii\helpers\Url;
echo Url::to(['post/view', 'id' => 100]);
with this helper Yii2 create the proper url according on the pretty url enabling state in use
You can find a brief guide on yii2 routing here http://www.yiiframework.com/doc-2.0/guide-runtime-routing.html

Answer 2

After adding .htaccess file in your ./web folder (if using basic template ), you must then add some rules in the urlManager section of your web.php config file...see below
'urlManager' => [
'enablePrettyUrl' => true,
'showScriptName' => false,
'enableStrictParsing' => false,
'rules' => array(
'<controller:\w+>/<id:\d+>' => '<controller>/view',
'<controller:\w+>/<action:\w+>/<id:\d+>' => '<controller>/<action>',
'<controller:\w+>/<action:\w+>' => '<controller>/<action>',
),
],