php8: add CI runtime test

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

lang/php8/test.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+case "$1" in
+	php8-cgi)
+		php8-cgi -v | grep "$2"
+		;;
+	php8-cli)
+		php8-cli -v | grep "$2"
+		;;
+	php8-fpm)
+		php8-fpm -v | grep "$2"
+		;;
+	php8-mod-*)
+		PHP_MOD="${1#php8-mod-}"
+		PHP_MOD="${PHP_MOD//-/_}"
+
+		opkg install php8-cli
+
+		php8-cli -m | grep -i "$PHP_MOD"
+		;;
+	*)
+		;;
+esac