chore(appengine/cloudsql): redirect to newer sample (GoogleCloudPlatform#1191)

Author: Ace Nassri

appengine/php72/cloudsql/README.md

@@ -1,97 +1,3 @@
 # Cloud SQL on App Engine Standard for PHP 7.2
 
-This sample application demonstrates how to use [Cloud SQL on App Engine for PHP 7.2](https://cloud.google.com/appengine/docs/standard/php7/using-cloud-sql).
-
-## Setup
-
-Before you can run or deploy the sample, you will need to do the following:
-
-1. Create a [Second Generation Cloud SQL](https://cloud.google.com/sql/docs/create-instance)
-   instance. You can do this from the [Cloud Console](https://console.developers.google.com)
-   or via the [Cloud SDK](https://cloud.google.com/sdk). To create it via the
-   SDK use the following command:
-
-        $ gcloud sql instances create YOUR_INSTANCE_NAME
-
-1. Create a database for the sample, for instance `cloudsql_sample`:
-
-        $ gcloud sql databases create cloudsql_sample --instance=YOUR_INSTANCE_NAME
-
-1. Set the root password on your Cloud SQL instance:
-
-        $ gcloud sql users set-password root --host % --instance YOUR_INSTANCE_NAME --password YOUR_INSTANCE_ROOT_PASSWORD
-
-1. Clone the repository and CD into the directory for this sample
-
-        git clone https://github.com/GoogleCloudPlatform/php-docs-samples.git
-        cd php-docs-samples/appengine/php72/cloudsql
-
-1. Update `app.yaml` (or if you're using CloudSQL with PostgreSQL, update `app-postgres.yaml`)
-   with your configuration values. These values are used when the application is deployed:
-
-        env_variables:
-            # Replace USER, PASSWORD, DATABASE, and CONNECTION_NAME with the
-            # values obtained when configuring your Cloud SQL instance.
-            CLOUDSQL_USER: USER
-            CLOUDSQL_PASSWORD: PASSWORD
-            CLOUDSQL_DSN: "mysql:dbname=DATABASE;unix_socket=/cloudsql/CONNECTION_NAME"
-
-## Deploy to App Engine
-
-**Prerequisites**
-
-- Install the [Google Cloud SDK](https://developers.google.com/cloud/sdk/).
-
-**Deploy with gcloud**
-
-If you haven't already, authenticate gcloud using your Google account and
-configure gcloud to use your project ID:
-
-```sh
-gcloud auth login
-gcloud config set project YOUR_PROJECT_ID
-```
-
-Next, deploy your application:
-
-```sh
-gcloud app deploy
-gcloud app browse
-```
-
-The last command will open `https://{YOUR_PROJECT_ID}.appspot.com/`
-in your browser.
-
-If your CloudSQL instance is running PostgreSQL instead of MySQL, deploy using
-`app-postgres.yaml` instead:
-
-```sh
-gcloud app deploy app-postgres.yaml
-```
-
-## Run locally
-
-To run the sample locally, you will want to use the [CloudSQL proxy](https://cloud.google.com/sql/docs/mysql/sql-proxy#install).
-The CloudSQL proxy allows you to connect to your CloudSQL instance locally without
-having to set up firewall rules.
-
-```sh
-./cloud_sql_proxy \
-    -instances YOUR_INSTANCE_NAME \
-    -dir /cloudsql \
-    -credentials /path/to/your_service_account_credentials.json
-```
-
-Then set your CloudSQL environment variables and run the PHP web server:
-
-```sh
-# set local connection parameters (but replace the uppercase words!)
-export CLOUDSQL_USERNAME=USER
-export CLOUDSQL_PASSWORD=PASSWORD
-export CLOUDSQL_DSN="mysql:dbname=DATABASE;unix_socket=/cloudsql/CONNECTION_NAME"
-
-php -S localhost:8080
-```
-
-Now you can view the app running at [http://localhost:8080](http://localhost:8080)
-in your browser.
+This sample has been moved to [cloud_sql](../../../cloud_sql).