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How to Implement a PHP Google Cloud Response Generator Learning from the Example Hello World HTTP Function: PHP example of Google Cloud function

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Version License PHP version Categories
helloworld_http_func 1.0MIT/X Consortium ...5PHP 5, Web services, Hosting
Description 

Author

Chun-Sheng, Li

This package provides a PHP example of the Google Cloud function.

It provides a script that can call the Google Cloud functions PHP framework to install a given cloud function.

The package provides an example function to dispatch HTTP requests received by Google Cloud HTTP serves to output a Hello World message.

Innovation Award
PHP Programming Innovation award nominee
October 2024
Number 8		 Google Cloud is a well-known cloud hosting service that provides scalable hosting solutions.

Google Cloud allows HTTP requests to Web servers to be processed using functions written in many programming languages.

This package provides a simple example that shows how to create Google cloud functions that PHP developers can use to implement their own Google cloud functions.

Manuel Lemos
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Name: Chun-Sheng, Li <contact>
Classes: 39 packages by
Country: Taiwan Taiwan
Age: 31
All time rank: 20966 in Taiwan Taiwan
Week rank: 22 Up1 in Taiwan Taiwan Up

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Example

<?php

use Google\CloudFunctions\FunctionsFramework;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use GuzzleHttp\Psr7\Response;


// Register the function with Functions Framework.
// This enables omitting the `FUNCTIONS_SIGNATURE_TYPE=http` environment
// variable when deploying. The `FUNCTION_TARGET` environment variable should
// match the first parameter.
FunctionsFramework::http('helloHttp', 'helloHttp');

function helloHttp(ServerRequestInterface $request)
{
    $headers = ['Access-Control-Allow-Origin' => '*'];
    $statusCode = 204;

    if ($request->getMethod() === 'OPTIONS') {
        // Send response to OPTIONS requests
        $headers = array_merge($headers, [
            'Access-Control-Allow-Methods' => 'GET',
            'Access-Control-Allow-Headers' => 'Content-Type',
            'Access-Control-Max-Age' => '3600'
        ]);
        return new Response($statusCode, $headers, '');
    }
    $name = 'World';
    $body = $request->getBody()->getContents();
    if (!empty($body)) {
        $json = json_decode($body, true);
        if (json_last_error() != JSON_ERROR_NONE) {
            throw new RuntimeException(sprintf(
                'Could not parse body: %s',
                json_last_error_msg()
            ));
        }
        $name = $json['name'] ?? $name;
    }
    $queryString = $request->getQueryParams();
    $name = $queryString['name'] ?? $name;
    $statusCode = 200;

    return new Response($statusCode, $headers, json_encode(['message' => sprintf('Hello, %s!', htmlspecialchars($name))]), '');
}

Details

helloworld_http

Introduction

This is the example for GCP Cloud function with PHP.

Deployment

  • Clone this repository.
  • Running the `compoer install` command to install required dependencies.
  • Running the following command to deploy this function: 
function_name="your function name"
REGION="your GCP region"

gcloud functions deploy ${function_name} \
    --gen2 \
    --runtime=php82 \
    --region="$REGION" \
    --source=. \
    --entry-point=helloHttp \
    --trigger-http \
    --allow-unauthenticated

  • Running the following command to delete the function: 
function_name="your function name"
REGION="your GCP region"

gcloud functions delete ${function_name} --region="$REGION"

References

  • https://cloud.google.com/functions/docs/create-deploy-http-php
  • https://cloud.google.com/functions/docs/samples/functions-http-cors

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Accessible without login Plain text file index.php Example Example script
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Accessible without login Plain text file README.md Doc. Documentation

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