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82 lines
2.1 KiB
Markdown
82 lines
2.1 KiB
Markdown
# Tutorial 1: PHP Function w/ Input (3 minutes)
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This example will show you how to test and deploy PHP code to Oracle Functions. It will also demonstrate passing data in through stdin.
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### First, run the following commands:
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```sh
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# Initialize your function creating a func.yaml file
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fn init <DOCKERHUB_USERNAME>/php
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# Test your function.
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# This will run inside a container exactly how it will on the server. It will also install and vendor dependencies from Gemfile
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fn run
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# Now try with an input
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cat sample.payload.json | fn run
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# Deploy your functions to the Oracle Functions server (default localhost:8080)
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# This will create a route to your function as well
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fn deploy myapp
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```
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### Now call your function:
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```sh
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curl http://localhost:8080/r/myapp/php
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```
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Or call from a browser: [http://localhost:8080/r/myapp/php](http://localhost:8080/r/myapp/php)
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And now with the JSON input:
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```sh
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curl -H "Content-Type: application/json" -X POST -d @sample.payload.json http://localhost:8080/r/myapp/php
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```
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That's it! Our `fn deploy` packaged our function and sent it to the Oracle Functions server. Try editing `func.php`
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and then doing another `fn deploy`.
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### Note on Dependencies
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In PHP, you can create a [composer](https://getcomposer.org/) file in your function directory, then run:
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This will rebuild your gems and vendor them. PHP doesn't pick them up automatically, so you'll have to add this to the top of your `func.php` file:
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```php
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require 'vendor/autoload.php';
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```
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Open `func.php` to see it in action.
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# In Review
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1. We piped JSON data into the function at the command line
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```sh
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cat sample.payload.json | fn run
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```
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2. We received our function input through **stdin**
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```php
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$payload = json_decode(file_get_contents("php://stdin"), true);
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```
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3. We wrote our output to **stdout**
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```php
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echo "Hello World!\n";
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```
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4. We sent **stderr** to the server logs
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```php
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fwrite(STDERR, "--> this will go to stderr (server logs)\n");
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```
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5. We added PHP dependencies and enabled them using:
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```php
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require 'vendor/autoload.php';
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```
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# Next Up
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## [Tutorial 2: Input Parameters](examples/tutorial/params)
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