feat: add support for "Get Contacts by Emails" endpoint

[funder7]

Fixes

Makes the Get contacts by emails endpoint usable by adding the relative phpDoc method.

Checklist

• I acknowledge that all my contributions will be made under the project's license
• I have made a material change to the repo (functionality, testing, spelling, grammar)
• I have read the Contribution Guidelines and my PR follows them
• I have titled the PR appropriately
• I have updated my branch with the main branch
• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary documentation about the functionality in the appropriate .md file
• I have added inline documentation to the code I modified

[funder7]

@twilio-dx any news about this PR? Thanks

[tiwarishubham635]

Hi @funder7! We have added this to our list and looking into it. Thanks!

[tiwarishubham635]

Hi @funder7! I just check this one. The endpoint is already accessible if you have your contacts added. It throws 404 when there are no contacts previously added. I firstly created a contact with my sendgrid account with some email id say - [email protected]. Then I executed this script and it wokred for me giving a 200 response and fetched the required contact.

`<?php
// Uncomment next line if you're not using a dependency loader (such as Composer)
// require_once '/sendgrid-php.php';

$apiKey = getenv('SENDGRID_API_KEY');
$sg = new \SendGrid($apiKey);
$request_body = json_decode('{
"emails": [
"[email protected]"
]
}');

try {
$response = $sg->client->marketing()->contacts()->search()->emails()->post($request_body);
print $response->statusCode() . "\n";
print_r($response->headers());
print $response->body() . "\n";
} catch (Exception $ex) {
echo 'Caught exception: '. $ex->getMessage();
}`
So I don't think this change is required. Can you check?