Basics for php lsp (#664)

* Update php.lua

* Update default-config.lua

* Update lv-config.example.lua

ftplugin/php.lua

@@ -1,4 +1,25 @@
 require'lspconfig'.intelephense.setup {
     cmd = { DATA_PATH .. "/lspinstall/php/node_modules/.bin/intelephense", "--stdio" },
-    on_attach = require'lsp'.common_on_attach
-}
+    on_attach = require'lsp'.common_on_attach,
+    handlers = {
+        ["textDocument/publishDiagnostics"] = vim.lsp.with(
+            vim.lsp.diagnostic.on_publish_diagnostics, {
+                virtual_text = O.lang.php.diagnostics.virtual_text,
+                signs = O.lang.php.diagnostics.signs,
+                underline = O.lang.php.diagnostics.underline,
+                update_in_insert = true
+
+            })
+    },
+	filetypes = O.lang.php.filetypes,
+	settings = {
+		intelephense = {
+			format = {
+				braces = O.lang.php.format.braces
+			},
+			environment = {
+				phpVersion = O.lang.php.environment.php_version
+			},
+        }
+	};
+}