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smtpapi-php

This php library allows you to quickly and more easily generate SendGrid X-SMTPAPI headers.

BuildStatus Latest Stable Version

Installation

The following recommended installation requires http://getcomposer.org.

Add the following to your composer.json file.

{  
  "minimum-stability" : "dev",
  "require": {
    "sendgrid/smtpapi": "0.0.1"
  }
}

Then at the top of your script require the autoloader:

require 'vendor/autoload.php';                                         

Alternative: Install from zip

If you are not using Composer, simply download and install the latest packaged release of the library as a zip.

Then require the library from package:

require("path/to/smtpapi-php/smtpapi-php.php");

Previous versions of the library can be found in the version index.

Usage

Initializing

$header    = new Smtpapi\Header();

jsonString

This gives you back the stringified json formatted X-SMTPAPI header. Use this with your smtp client of choice.

$header    = new Smtpapi\Header();
$header->jsonString();

addTo

$header    = new Smtpapi\Header();
$header->addTo('[email protected]');
$header->addTo('[email protected]');

setTos

$header    = new Smtpapi\Header();
$header->setTos(array('[email protected]', '[email protected]'));

addSubstitution

$header    = new Smtpapi\Header();
$header->addSubstitution('keep', array('secret')); // sub = {keep: ['secret']}
header->addSubstitution('other', array('one', 'two'));   // sub = {keep: ['secret'], other: ['one', 'two']}

setSubstitutions

$header    = new Smtpapi\Header();
$header->setSubstitutions(array('keep' => array('secret'))); // sub = {keep: ['secret']}

addUniqueArg

$header    = new Smtpapi\Header();
$header->addUniqueArg('cat', 'dogs');

setUniqueArgs

$header    = new Smtpapi\Header();
$header->setUniqueArgs(array('cow' => 'chicken'));
$header->setUniqueArgs(array('dad' => 'proud'));

addCategory

$header    = new Smtpapi\Header();
$header->addCategory('tactics'); // category = ['tactics']
$header->addCategory('advanced'); // category = ['tactics', 'advanced']

setCategories

$header    = new Smtpapi\Header();
$header->setCategories(array('tactics', 'advanced')); // category = ['tactics', 'advanced']

addSection

$header    = new Smtpapi\Header();
$header->addSection('-charge-': 'This ship is useless.');
$header->addSection('-bomber-', 'Only for sad vikings.');

setSections

$header    = new Smtpapi\Header();
$header->setSections(array('-charge-' => 'This ship is useless.'));

addFilter

$header    = new Smtpapi\Header();
$header->addFilter('footer', 'enable', 1);
$header->addFilter('footer', 'text/html', '<strong>boo</strong>');

setFilters

$header    = new Smtpapi\Header();
$filter = array( 
  'footer' => array( 
    'setting' => array( 
      'enable' => 1,
      "text/plain" => 'You can haz footers!'
    )
  )
); 
$header->setFilters($filter);

SendGrid SMTP Example

The following example builds the X-SMTPAPI headers and adds them to swiftmailer. Swiftmailer then sends the email through SendGrid. You can use this same code in your application or optionally you can use sendgrid-php.

$transport  = Swift_SmtpTransport::newInstance('smtp.sendgrid.net', 587);
$transport->setUsername("sendgrid_username");
$transport->setPassword("sendgrid_password");

$mailer     = Swift_Mailer::newInstance($transport);

$message    = new Swift_Message();
$message->setTos(array("[email protected]"));
$message->setFrom("[email protected]");
$message->setSubject("Hello");
$message->setBody("%how% are you doing?");

$header           = new Smtpapi\Header();
$header->addSubstitution("%how%", array("Owl"));

$message_headers  = $message->getHeaders();
$message_headers->addTextHeader("x-smtpapi", $header->jsonString());

try {
  $response = $mailer->send($message);
  print_r($response);
} catch(\Swift_TransportException $e) {
  print_r('Bad username / password');
}

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

Running Tests

The existing tests in the test directory can be run using PHPUnit with the following command:

composer update --dev
cd test
../vendor/bin/phpunit
```

or if you already have PHPUnit installed globally.

```bash
cd test
phpunit
```

#### Testing uploading to Amazon S3

If you want to test uploading the zipped file to Amazon S3 (SendGrid employees only), do the following.

```
export S3_SIGNATURE="secret_signature"
export S3_POLICY="secret_policy"
export S3_BUCKET="sendgrid-open-source"
export S3_ACCESS_KEY="secret_access_key"
./scripts/s3upload.sh
```

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Build SendGrid X-SMTPAPI headers in PHP.

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