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PHP Sample for AWS Cloud9

This sample enables you to run some PHP scripts in an AWS Cloud9 development environment.

Note

This sample assumes you already have the AWS Cloud9 IDE for your AWS Cloud9 development environment open in your web browser, and that you're using an AWS Cloud9 EC2 development environment that is connected to an Amazon EC2 instance running Amazon Linux. In you're using a different operating system or using an AWS Cloud9 SSH development environment, you might need to adapt this sample's instructions to correctly install and configure this sample's required tools. To create an environment, see Creating an Environment.

When you're using this sample, be sure you're signed in to AWS with the AWS account ID and name and password of the user you created or identified in Team Setup.

Creating this sample may result in charges to your AWS account. These include possible charges for services such as Amazon EC2 and Amazon S3. For more information, see Amazon EC2 Pricing and Amazon S3 Pricing.

Step 1: Install Required Tools

In this step, you install PHP, which is required to run this sample.

Note

The following procedure installs PHP only. To install related tools such as an Apache web server and a MySQL database, see Tutorial: Installing a LAMP Web Server on Amazon Linux in the Amazon EC2 User Guide for Linux Instances.

  1. In a terminal session in the AWS Cloud9 IDE, confirm whether PHP is already installed by running the php --version command. (To start a new terminal session, on the menu bar, choose Window, New Terminal.) If successful, the output contains the PHP version number. If PHP is installed, skip ahead to Step 2: Add Code.

  2. Run the yum update command to help ensure the latest security updates and bug fixes are installed.

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    sudo yum -y update
  3. Install PHP by running the install command.

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    sudo yum -y install php56

    For more information, see Installation and Configuration on the PHP website.

Step 2: Add Code

In the AWS Cloud9 IDE, create a file with this content, and save the file with the name hello.php. (To create a file, on the menu bar, choose File, New File. To save the file, choose File, Save.)

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<?php print('Hello, World!'); print("\nThe sum of 2 and 3 is 5."); $sum = (int)$argv[1] + (int)$argv[2]; print("\nThe sum of $argv[1] and $argv[2] is $sum."); ?>

Step 3: Run the Code

  1. In the AWS Cloud9 IDE, on the menu bar, choose Run, Run Configurations, New Run Configuration.

  2. On the [New] - Idle tab, choose Runner: Auto, and then choose PHP (cli).

  3. For Command, type hello.php 5 9. In the code, 5 represents $argv[1], and 9 represents $argv[2]. ($argv[0] represents the name of the file (hello.php).)

  4. Choose the Run button, and compare your output.

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    Hello, World! The sum of 2 and 3 is 5. The sum of 5 and 9 is 14.

            Output of running the PHP code in the AWS Cloud9 IDE

Step 4: Install and Configure the AWS SDK for PHP

You can enhance this sample to use the AWS SDK for PHP to create an Amazon S3 bucket, list your available buckets, and then delete the bucket you just created.

In this step, you install and configure the AWS SDK for PHP, which provides a convenient way to interact with AWS services such as Amazon S3, from your PHP code. Before you can install the AWS SDK for PHP, you should install Composer. After you install the AWS SDK for PHP, you must set up credentials management in your environment. The AWS SDK for PHP needs these credentials to interact with AWS services.

To install Composer

Run the curl command with the silent (-s) and show error (-S) options, piping the Composer installer into a PHP archive (PHAR) file, named composer.phar by convention.

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curl -sS https://getcomposer.org/installer | php

To install the AWS SDK for PHP

Use the php command to run the Composer installer to install the AWS SDK for PHP.

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php composer.phar require aws/aws-sdk-php

This command creates several folders and files in your environment. The primary file you will use is autoload.php, which is in the vendor folder in your environment.

For more information, see Installation in the AWS SDK for PHP Getting Started Guide.

To set up credentials management in your environment

Each time you use the AWS SDK for PHP to call an AWS service, you must provide a set of credentials with the call. These credentials determine whether the AWS SDK for PHP has the appropriate permissions to make that call. If the credentials don't cover the appropriate permissions, the call will fail.

In this step, you store your credentials within the environment. To do this, follow the instructions in Call AWS Services from an Environment, and then return to this topic.

For additional information, see the "Creating a client" section of Basic Usage in the AWS SDK for PHP Getting Started Guide.

Step 5: Add AWS SDK Code

In this step, you add some more code, this time to interact with Amazon S3 to create a bucket, list your available buckets, and then delete the bucket you just created. You will run this code later.

In the AWS Cloud9 IDE, create a file with this content, and save the file with the name s3.php.

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<?php require './vendor/autoload.php'; date_default_timezone_set('YOUR_TIME_ZONE'); $bucketName = $argv[1]; $s3 = new Aws\S3\S3Client([ 'region' => 'YOUR_REGION', 'version' => '2006-03-01' ]); # Lists all of your available buckets in this AWS Region. function listMyBuckets($s3) { print("\nMy buckets now are:\n"); $promise = $s3->listBucketsAsync(); $result = $promise->wait(); foreach ($result['Buckets'] as $bucket) { print("\n"); print($bucket['Name']); } } listMyBuckets($s3); # Create a new bucket. print("\n\nCreating a new bucket named '$bucketName'...\n"); try { $promise = $s3->createBucketAsync([ 'Bucket' => $bucketName ]); $promise->wait(); } catch (Exception $e) { if ($e->getCode() == 'BucketAlreadyExists') { exit("\nCannot create the bucket. " . "A bucket with the name '$bucketName' already exists. Exiting."); } } listMyBuckets($s3); # Delete the bucket you just created. print("\n\nDeleting the bucket named '$bucketName'...\n"); $promise = $s3->deleteBucketAsync([ 'Bucket' => $bucketName ]); $promise->wait(); listMyBuckets($s3); ?>

In the preceding code, replace these placeholders.

  • Replace YOUR_TIME_ZONE with your default time zone ID. For example, for the Pacific Time Zone, use America/Los_Angeles. For more IDs, see List of Supported Timezones on the PHP website.

  • Replace YOUR_REGION with the ID of an AWS Region. For example, for the US East (Ohio) Region, use us-east-2. For more IDs, see Amazon Simple Storage Service (Amazon S3) in the Amazon Web Services General Reference.

Step 6: Run the AWS SDK Code

  1. In the AWS Cloud9 IDE, on the menu bar, choose Run, Run Configurations, New Run Configuration.

  2. On the [New] - Idle tab, choose Runner: Auto, and then choose PHP (cli).

  3. For Command, type s3.php YOUR-BUCKET-NAME , where YOUR-BUCKET-NAME is the name of the bucket you want to create and then delete.

    
                  Running the AWS SDK for PHP code in the AWS Cloud9 IDE
  4. Choose the Run button, and compare your output.

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    My buckets now are: Creating a new bucket named 'my-test-bucket'... My buckets now are: my-test-bucket Deleting the bucket named 'my-test-bucket'... My buckets now are:

Step 7: Clean Up

To prevent ongoing charges to your AWS account after you're done using this sample, you should delete the environment. For instructions, see Deleting an Environment.