Simple script to quickly create a fresh WordPress installation in a subfolder.

RoboFile.php

<?php declare( strict_types=1 );

final class RoboFile extends \Robo\Tasks {

	public function createEmpty( string $name, string $tld = 'localhost', string $email = '[email protected]' ) {
		$io   = $this->io();
		$root = __DIR__;

		$io->title( 'Creating an empty local WordPress site' );

		$this->collectionBuilder()
		     ->addTask(
			     $this->taskExec( "mkdir {$root}/{$name}" )
		     )
		     ->rollback(
			     $this->taskDeleteDir( "{$root}/{$name}" )
		     )
		     ->addTaskList( [
			     $this->taskExec( "cd {$root}/{$name}" ),
			     $this->taskExec( 'valet secure' )
			          ->arg( $name ),
			     $this->taskExec( 'wp core download' )
			          ->option( "path={$root}/{$name}" ),
			     $this->taskExec( 'wp core config' )
			          ->option( "path={$root}/{$name}" )
			          ->option( "dbname={$name}" )
			          ->option( 'dbuser=root' )
			          ->option( 'dbpass=root' ),
			     $this->taskExec( 'wp db create' )
			          ->option( "path={$root}/{$name}" ),
			     $this->taskExec( 'wp core install' )
			          ->option( "path={$root}/{$name}" )
			          ->option( "url=https://{$name}.{$tld}" )
			          ->option( "title={$name}" )
			          ->option( 'admin_user=admin' )
			          ->option( 'admin_password=password' )
			          ->option( "admin_email={$email}" ),
		     ] )
		     ->completion(
			     $this->taskOpenBrowser( "https://{$name}.{$tld}" )
		     )
		     ->run();
	}
}