[BUG] Issue with certain date format

[yellow1912]

Environment (please complete the following information):

• PHP IMAP version: Latest
• PHP Version: [e.g. 7.2]
• Type of execution: [php-fpm]

Describe the bug
The line 945 in Mailbox.php reads like this:

$dateRegex = '/\\s*\\(.*?\\)/';
                        $dateFormatted = \DateTime::createFromFormat(\DateTime::RFC2822, preg_replace($dateRegex, '', $dateHeader));
                        return $dateFormatted->format('Y-m-d H:i:s');

If the date does not meet the expected format, the $dateFormatted is a boolean variable so we need to ensure either throw an exception or just take current datetime as alternative?

To Reproduce

Use this date string for example: 7 Nov 2018 23:44:15 -0500

[Sebbo94BY]

You're right. This is causing the following error:

Error: Call to a member function format() on boolean

I would rather just take the current datetime as throwing an exception would always end in the result, that you can not parse these emails.

// Edit: Or we'll leave the date unformatted.

I'll commit this change this evening.

[Sebbo94BY]

This issue has been fixed. See references above.

• If the given $dateHeader is empty, it will throw an InvalidParameterException
• If the provided $dateHeader can not be formatted, it will return the current datetime (as before)
• If the provided $dateHeader could be formatted, it will return this formatted / normalized datetime

The latest release 3.0.12 includes this fix.