Add dev/+php

dev/+php/env.zsh

@@ -0,0 +1 @@
+path=(~/.composer/vendor/bin $path)

dev/+php/install

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+case $OSTYPE in
+    darwin*)
+        brew tap homebrew/homebrew-php
+        brew install php71 composer
+        ;;
+    linux*)
+        if [[ -f /etc/arch-release ]]; then
+            sudo pacman --needed --noconfirm -S php composer
+        fi
+        ;;
+esac
+
+# global packages
+composer global require \
+    d11wtq/borus \
+    phpunit/phpunit \
+    techlivezheng/phpctags