PHP: Notes

"PHP was originally an abbreviation of Personal Home Page, but it now stands for the recursive initialism PHP: Hypertext Preprocessor. " — Wikipedia

>>> PHP 8.2 released!

php --version : Check PHP version
php --help
php -S localhost:8000 : Start built-in webserver on port 8000

PHP Global Variables

PHP variables start with $.

Pre-defined, global scope.

$GLOBALS, $_SERVER, $_REQUEST, $_POST, $_GET, $_FILE, $_ENV, $_COOKIE, $_SESSION

PHP Online IDE

https://replit.com/

MVC Frameworks for Building PHP Web Applications

>>> CodeIgniter

>>> CakePHP

>>> Zend

>>> Lavarel

>>> Symphony

>>> Yii

References

PHP Tutorial | w3schools.com

Practice

>>> THM | Linux Backdoors - PHP Backdoors

Powershell: Enable Firewall Log

We sometimes need to enable Windows firewall's log to troubleshoot. Here is how.

MSSQL: Fix error 'Consistency validation for SQL Server registry keys'

While installing Microsof SQL Server 2012, I ran into the following error. "The SQL Server registry keys from a prior installation cannot be modified. To continue, see SQL Server Setup documentation about how to fix registry keys." How to fix Replace the D:\x64\FixSqlRegistryKey_x86.exe file with the original file from the ENU\SQLFULL_ENU.iso file downloading from Microsoft Download Center. This ISO file is 4.2GB. So you can click FixSqlRegistryKey_x86.exe to download this file only. After replacing that file, press Re-run to check. All rules are passed.

Linux command: ssh-keygen - Generate SSH Keys

ssh-keygen — authentication key generation, management and conversion

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