SH to install Laravel LAMP on AWS. Basically a copy-paste from AWS tutorial with composer and mbstring.

lamp.sh

sudo yum update -y
sudo yum install -y httpd24 php70 php70-mbstring mysql56-server php70-mysqlnd
sudo service httpd start
sudo chkconfig httpd on
# Check security group allowing http incoming connections - Apache test page should be visible

# Setup www group and future permissions
sudo groupadd www
sudo usermod -a -G www ec2-user
sudo usermod -a -G www apache
sudo chown -R ec2-user:www /var/www
sudo chmod 2775 /var/www
find /var/www -type d -exec sudo chmod 2775 {} \;
find /var/www -type f -exec sudo chmod 0664 {} \;

# Test PHP
echo "<?php phpinfo(); ?>" > /var/www/html/phpinfo.php
rm /var/www/html/phpinfo.php

# Setup MySql
sudo service mysqld start
sudo mysql_secure_installation
sudo chkconfig mysqld on

# Install composer globally
installComposer

# Composer installation function
function installComposer {
  cd
  EXPECTED_SIGNATURE=$(wget -q -O - https://composer.github.io/installer.sig)
  php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
  ACTUAL_SIGNATURE=$(php -r "echo hash_file('SHA384', 'composer-setup.php');")
  if [ "$EXPECTED_SIGNATURE" != "$ACTUAL_SIGNATURE" ]
  then
      >&2 echo 'ERROR: Invalid installer signature'
      rm composer-setup.php
      exit 1
  fi
  php composer-setup.php --quiet
  RESULT=$?
  rm composer-setup.php
  exit $RESULT
}

This will leave a correct setup for Laravel running in Amazon EC2. Don't forget to run 'composer install' and 'php artisan key:generate'