feat: add PHP application template

php/.dockerignore

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+.cartesi
+vendor

php/.gitignore

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+.bundle
+.cartesi
+vendor

php/Dockerfile

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+# syntax=docker.io/docker/dockerfile:1
+
+# This enforces that the packages downloaded from the repositories are the same
+# for the defined date, no matter when the image is built.
+ARG UBUNTU_TAG=noble-20240827.1
+ARG APT_UPDATE_SNAPSHOT=20240827T030400Z
+
+################################################################################
+# riscv64 base stage
+FROM --platform=linux/riscv64 ubuntu:${UBUNTU_TAG} AS base
+
+ARG APT_UPDATE_SNAPSHOT
+ARG DEBIAN_FRONTEND=noninteractive
+RUN <<EOF
+set -eu
+apt update
+apt install -y --no-install-recommends ca-certificates
+apt update --snapshot=${APT_UPDATE_SNAPSHOT}
+EOF
+
+FROM base AS builder
+
+ARG DEBIAN_FRONTEND=noninteractive
+RUN <<EOF
+set -e
+apt-get install -y --no-install-recommends \
+  php8.3-cli \
+  php8.3-curl \
+  composer \
+  git \
+  unzip
+rm -rf /var/apt/lists/*
+EOF
+
+WORKDIR /usr/src/app
+
+COPY composer.json composer.lock ./
+RUN composer install
+
+FROM base
+
+ARG MACHINE_EMULATOR_TOOLS_VERSION=0.14.1
+ADD https://github.com/cartesi/machine-emulator-tools/releases/download/v${MACHINE_EMULATOR_TOOLS_VERSION}/machine-emulator-tools-v${MACHINE_EMULATOR_TOOLS_VERSION}.deb /
+RUN dpkg -i /machine-emulator-tools-v${MACHINE_EMULATOR_TOOLS_VERSION}.deb \
+  && rm /machine-emulator-tools-v${MACHINE_EMULATOR_TOOLS_VERSION}.deb
+
+LABEL io.cartesi.rollups.sdk_version=0.10.0
+LABEL io.cartesi.rollups.ram_size=128Mi
+
+ARG DEBIAN_FRONTEND=noninteractive
+RUN <<EOF
+set -e
+apt-get update
+apt-get install -y --no-install-recommends \
+  busybox-static \
+  php8.3-cli \
+  php8.3-curl
+rm -rf /var/lib/apt/lists/* /var/log/* /var/cache/*
+useradd --create-home --user-group dapp
+EOF
+
+ENV PATH="/opt/cartesi/bin:${PATH}"
+
+COPY --from=builder /usr/src/app/vendor /usr/src/app/vendor
+
+WORKDIR /usr/src/app
+COPY index.php .
+
+ENTRYPOINT ["rollup-init"]
+CMD ["php", "index.php"]

php/composer.json

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+{
+    "require": {
+        "guzzlehttp/guzzle": "^7.0"
+    }
+}