Downgrade php 8.0 to 7.4

sudo yum install yum-utils -y

 1049  sudo yum-config-manager --disable remi-php5*

 1050  sudo yum-config-manager --disable remi-php80

 1051  sudo yum-config-manager --disable remi-test

 1052  sudo yum-config-manager --enable remi-php74

 1053  sudo yum remove php php-* -y   (Remove php)

 1054  sudo yum install roundcube phpmyadmin -y  (optional)

 1061  sudo dnf install php php-cli php-common

 1062  php -version

 1063  sudo service httpd restart

Upgrade php 7 to 8 (7.4 to 8.0)

 For Redhat(RHEL 7)  or centos 7

sudo yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

 1001  sudo yum install -y https://rpms.remirepo.net/enterprise/remi-release-7.rpm

 1002  sudo yum -y install yum-utils

 1003  sudo yum-config-manager --disable 'remi-php*'

 1005  sudo dnf install php php-cli php-common

 1006  sudo yum-config-manager --disable remi-php54

 1007  sudo yum-config-manager --disable remi-php74

 1008  sudo yum-config-manager --enable remi-php80

 1009  sudo yum update

 1010  php -v

* Want to disable last remi and enable new remi

Can't use Jquery UI in Laravel Boilerplate (date picker)

 Solution:

Put jquery ui library file after manifest.js

Do you want to find the issue please comment all js library files except jquery.

then put this code for check UI loaded

<script>
    $(document).ready(function() {
        if (jQuery.ui) {
            alert("loaded");
        }else
        {
            alert("not loaded");
        }

})
</script>

 then check and uncomment commented libraries one by one

Can't run XAMPP - MySql

 This is as a result of some files in C:\xampp\mysql\data\mysql getting corrupted.

Solution:

1. Back up C:\xampp\mysql\data
2. Copy all file C:\xampp\mysql\backup
3. Paste and replace existing file in: C:\xampp\mysql\data, except for the ibdata1 file.
   Leaving ibdata1 will help against table does not exist error.

Yii2: Cannot perform RBAC migration (You should configure “authManager”…)

Problem was quite simple: The configuration was not used. yii migrate is a console command and usually the configuration for such commands is placed in a seperated file.

In case of yii2-app-base template, from which I have created my application, there is a config/console.php configuration file where the authManager needs to be declared. It is not sufficient to have it in the config/web.php declared only.

In case of yii2-app-advanced the authManager should be declared in console/config/main.php and not in the backend or frontend configuration files.

Build a REST API using Yii2 PHP Framework

 https://www.youtube.com/watch?v=XyHHMvRt6Cw

.htaccess for Yii 2 advanced

 Setting .htaccess for Yii2 advanced in Windows using Open Server. On the server with the unix system a .htaccess will work too, is checked.

Step-by-step instruction

Step 1

At the root of the project (@app) add a .htaccess with the following content:

<IfModule mod_rewrite.c>
    Options +FollowSymlinks
    RewriteEngine On
</IfModule>
 
<IfModule mod_rewrite.c>    
    RewriteCond %{REQUEST_URI} ^/(admin)
    RewriteRule ^admin/assets/(.*)$ backend/web/assets/$1 [L]
    RewriteRule ^admin/css/(.*)$ backend/web/css/$1 [L]
    RewriteRule ^admin/js/(.*)$ backend/web/js/$1 [L]
    RewriteCond %{REQUEST_URI} !^/backend/web/(assets|js|css|js)/
    RewriteCond %{REQUEST_URI} ^/(admin)
    RewriteRule ^.*$ backend/web/index.php [L]
    RewriteCond %{REQUEST_URI} ^/(assets|css|js|images)
    RewriteRule ^assets/(.*)$ frontend/web/assets/$1 [L]
    RewriteRule ^css/(.*)$ frontend/web/css/$1 [L]
    RewriteRule ^js/(.*)$ frontend/web/js/$1 [L]
    RewriteRule ^images/(.*)$ frontend/web/images/$1 [L]
    RewriteRule ^(.*)$ frontend/web/$1 [L]
    RewriteCond %{REQUEST_URI} !^/(frontend|backend)/web/(assets|css|js)/
    RewriteCond %{REQUEST_URI} !index.php
    RewriteCond %{REQUEST_FILENAME} !-f [OR]
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^.*$ frontend/web/index.php
</IfModule>

Where admin - path to the @backend/web.

Step 2

In the folder @frontend/web add the file .htaccess with the following content:

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

Step 3

In the file @frontend/config/main.php in item components of array add:

'request' => [
    'baseUrl' => '',
],
'urlManager' => [
    'enablePrettyUrl' => true,
    'showScriptName' => false,
    'rules' => [
        '' => 'site/index',                                
        '<controller:\w+>/<action:\w+>/' => '<controller>/<action>',
    ],
],

Step 4

In the folder @backend/web add the file .htaccess with the following content:

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.phpp
RewriteRule . index.php

Step 5

In the file @backend/config/main.php in item components of array add:

'request' => [
    'baseUrl' => '/admin',
],
'urlManager' => [
    'enablePrettyUrl' => true,
    'showScriptName' => false,
    'rules' => [
        '' => 'site/index',                                
        '<controller:\w+>/<action:\w+>/' => '<controller>/<action>',
    ],
],

Well done)