I documented the steps for my fresh install of High Sierra. Getting Oracle working can be a pain, hopefully this is helpful to someone.

Setting Up Laravel Development Environment On MacOS High Sierra (13.1) with Laravel Valet, PHP, and Oracle (OCI8)

Composer

Follow install instructions at https://getcomposer.org/download/

Make composer available globally

mv composer.phar /usr/local/bin/composer

Make sure the ~/.composer/vendor/bin directory is in your system's "PATH".

nano ~/.bash_profile

Add export PATH="~/.composer/vendor/bin:$PATH"

Homebrew

Follow install instructions at https://brew.sh/

MySQL

brew install mariadb

brew services start mariadb

Login (enter blank password)

mysql -u root -p

Set Password

SET PASSWORD FOR 'root'@'localhost' = PASSWORD('MyNewPass');

Install Sequel Pro https://sequelpro.com and make sure you can connect:

Host: 127.0.0.1
Username: root
Password: MyNewPass

PHP 7.1

From https://getgrav.org/blog/macos-sierra-apache-multiple-php-versions

brew tap homebrew/php

brew update

brew install php71

sudo chown -R `whoami`:admin /usr/local/share

brew link php71

Install PECL/PEAR

https://jason.pureconcepts.net/2012/10/install-pear-pecl-mac-os-x/

curl -O http://pear.php.net/go-pear.phar
sudo php -d detect_unicode=0 go-pear.phar

1. Type 1 and press return.
2. Enter: /usr/local/pear
3. Type 4 and press return.
4. Enter: /usr/local/bin
5. Press return

To verify PEAR, you should be able to type: pear version

Oracle InstantClient

From:

• http://www.oracle.com/technetwork/topics/intel-macsoft-096467.html
• https://gist.github.com/krisanalfa/09b765bb95012cd36fbd

Download:

• instantclient-basic-macos.x64-12.2.0.1.0.zip
• instantclient-sqlplus-macos.x64-12.2.0.1.0.zip
• instantclient-sdk-macos.x64-12.2.0.1.0.zip

Create and unzip all theses files into a the directory ~/lib

sudo ln -s ~/lib/sdk/include/*.h /usr/local/include/
sudo ln -s ~/lib/sqlplus /usr/local/bin/
sudo ln -s ~/lib/*.dylib /usr/local/lib/
sudo ln -s ~/lib/*.dylib.12.1 /usr/local/lib/
sudo ln -s /usr/local/lib/libclntsh.dylib.12.1 /usr/local/lib/libclntsh.dylib

Install autoconf

brew install autoconf

Install extention with pecl

sudo pecl install oci8

At the prompt enter: instantclient,/usr/local/lib

Add the following line to your php.ini /usr/local/etc/php/7.1/php.ini

extension=oci8.so

Run php -m to display loaded modules. Installation is successful if you see:

oci8

Laravel Valet

https://laravel.com/docs/5.5/valet

• Install Valet with Composer via composer global require laravel/valet.
• Run the valet install command. This will configure and install Valet and DnsMasq, and register Valet's daemon to launch when your system starts.

Fix NGINX 504 Gateway Time-out Error

Edit: /usr/local/etc/nginx/valet/valet.conf

Under server {, add

    client_max_body_size 128M;
    client_header_timeout 3000;
    client_body_timeout 3000;
    fastcgi_read_timeout 3000;
    fastcgi_buffers 8 128k;
    fastcgi_buffer_size 128k;

Restart with

valet stop
valet start