1. Install PHP Development Evironment

1.1. Install

macOS

$ brew install php

Check the version:

$ php -v
PHP 8.3.11 (cli) (built: Aug 30 2024 16:34:18) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.11, Copyright (c) Zend Technologies

Debian

$ sudo apt install php
$ sudo apt install php-mysql
$ sudo apt install php-mbstring
$ sudo apt install php-xml
$ sudo apt install php-gd
$ sudo apt install php-imagick

1.2. Configure

macOS

See where to find ini configuration:

$ php --ini
Configuration File (php.ini) Path: /usr/local/etc/php/8.3
Loaded Configuration File:         /usr/local/etc/php/8.3/php.ini
Scan for additional .ini files in: /usr/local/etc/php/8.3/conf.d
Additional .ini files parsed:      /usr/local/etc/php/8.3/conf.d/ext-opcache.ini

For macOS Monterey, you need to disable loading opcache, for there is no way to set code sign for it. To do this, edit file /usr/local/etc/php/8.3/conf.d/opcache.ini:

 [opcache]
-zend_extension="/usr/local/opt/php/lib/php/20230831/opcache.so"
+#zend_extension="/usr/local/opt/php/lib/php/20230831/opcache.so"

Debian

Use development config:

$ sudo ln -snvf php.ini-development /etc/php/8.2/apache2/php.ini 
'/etc/php/8.2/apache2/php.ini' -> 'php.ini-development'

Set mod to access session dir:

$ sudo chmod a+r /var/lib/php/sessions/