Update PHP version everywhere to 7.4, changed composer flag to :1 to …

…always use the most up-to-date composer:1 version.

Signed-off-by: Shikachuu <zcmate@gmail.com>

README.md

@@ -23,7 +23,7 @@ This repository contains the Classic OpenFaaS templates, but many more are avail
 | java11-vert-x | Java and [Vert.x](https://vertx.io/) | 11 | Debian GNU/Linux | of-watchdog | [Java LTS template](https://github.com/openfaas/templates/tree/master/template/java11-vert-x)
 | java11 | Java | 11 | Debian GNU/Linux | of-watchdog | [Java LTS template](https://github.com/openfaas/templates/tree/master/template/java11)
 | ruby | Ruby | 2.7 | Alpine Linux 3.11 | classic| [Ruby template](https://github.com/openfaas/templates/tree/master/template/ruby)
-| php7 | PHP | 7.2 | Alpine Linux | classic | [PHP 7 template](https://github.com/openfaas/templates/tree/master/template/php7)
+| php7 | PHP | 7.4 | Alpine Linux | classic | [PHP 7 template](https://github.com/openfaas/templates/tree/master/template/php7)
 | csharp | C# | N/A | Debian GNU/Linux 9 | classic | [C# template](https://github.com/openfaas/templates/tree/master/template/csharp)
 
 For more information on the templates check out the [docs](https://docs.openfaas.com/cli/templates/).

template/php7/Dockerfile

@@ -4,10 +4,10 @@ ARG BUILDPLATFORM
 FROM --platform=${TARGETPLATFORM:-linux/amd64} ghcr.io/openfaas/classic-watchdog:0.1.5 as watchdog
 
 # start with the official Composer image and name it
-FROM --platform=${TARGETPLATFORM:-linux/amd64} composer:1.7 AS composer
+FROM --platform=${TARGETPLATFORM:-linux/amd64} composer:1 AS composer
 
 # continue with the official PHP image
-FROM --platform=${TARGETPLATFORM:-linux/amd64} php:7.2-alpine
+FROM --platform=${TARGETPLATFORM:-linux/amd64} php:7.4-alpine
 
 # copy the Composer PHAR from the Composer image into the PHP image
 COPY --from=composer /usr/bin/composer /usr/bin/composer

template/php7/function/src/Handler.php

@@ -9,10 +9,10 @@
 class Handler
 {
     /**
-     * @param $data
-     * @return
+     * @param string $data
+     * @return string
      */
-    public function handle($data)
+    public function handle(string $data): string
     {
         return $data;
     }

template/php7/template.yml

@@ -1,7 +1,7 @@
 language: php7
 fprocess: php index.php
 welcome_message: |
-  You have created a new function which uses PHP 7.2.
+  You have created a new function which uses PHP 7.4.
   Dependencies and extensions can be added using the composer.json
   and php-extension.sh files.
   See https://github.com/openfaas/templates/blob/master/template/php7.