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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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2024-10-10 (Yesterday) RSS 2.0 feedNot enough user ratingsTotal: 10 This week: 10All time: 11,420 This week: 7Up
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.

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Name: Chun-Sheng, Li <contact>
Classes: 37 packages by
Country: Taiwan Taiwan

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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

  Files folder image Files (4)  
File Role Description
Accessible without login Plain text file composer.json Data Auxiliary data
Accessible without login Plain text file index.php Example Example script
Accessible without login Plain text file LICENSE Lic. License text
Accessible without login Plain text file README.md Doc. Documentation

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