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Install PHP 7.3 on macOS 11

Warning! This PHP version is end-of-life!

PHP 7.3 reached end of life on 06 Dec 2021 and is no longer being updated. It's strongly recommended to upgrade to the latest version as soon as possible. You can read the official PHP migration guide here.

Installing PHP 7.3 on macOS 11

Prerequisites

macOS 11 (Big Sur) installed
Admin access to your Mac
Homebrew package manager installed
Terminal application

Installation

Open Terminal
Update Homebrew:
```
brew update
```
Install PHP 7.3:
```
brew install [email protected]
```
Link PHP 7.3:
```
brew link [email protected]
```

Add PHP to your PATH:

echo 'export PATH="/usr/local/opt/[email protected]/bin:$PATH"' >> ~/.zshrc

Reload your shell configuration:
```
source ~/.zshrc
```

Verification

Check PHP version:
```
php -v
```

Expected output:

PHP 7.3.x (cli) (built: ...) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.x, Copyright (c) 1998-2018 Zend Technologies

Verify PHP configuration:
```
php -i
```