Retrieve full email address from string

Question

I'm currently building a Slack bot using Laravel, and one of the features is that it can receive an email address and send a message to it.

The issue is that email addresses (e.g [email protected]) come through as <mailto:[email protected]|[email protected]> from Slack.

I currently have a function that retrieves the email from this:

public function getEmail($string)
{
    $pattern = '/[a-z0-9_\-\+]+@[a-z0-9\-]+\.([a-z]{2,3})(?:\.[a-z]{2})?/i';
    preg_match_all($pattern, $string, $matches);
    $matches = array_filter($matches);

    return $matches[0][0];
}

This seemed to be working fine with email addresses like [email protected], however it seems to fail when working with email addresses like [email protected] (which would come through as <mailto:[email protected]|[email protected]>. In these cases, the function is returning [email protected] as the email address.

I'm not great with regex, but is there something else I could use/change in my pattern, or a better way to fetch the email address from the string provided by Slack?

Answer 1

Could always take regex out of the equation if you know that's always the format it'll be in:

$testString = '<mailto:[email protected]|[email protected]>';

$testString = str_replace(['<mailto:', '>'], '', $testString);

$addresses = explode('|', $testString);

echo $addresses[0];