无法使用IMAP搜索

Question

My email id have email with subject line "=?UTF-8?Q?=e2=99=a3?= Styles =?UTF-8?Q?=e2=99=a3?=" Now I want to use imap_search to search email with this subject line. But I am getting an error-:

Notice: Unknown: Unknown search criterion: STYLES (errflg=2) in Unknown on line 0

Below is search code I am using:

    $ToSearch=trim("=?UTF-8?Q?=e2=99=a3?= Styles to Freshen Up Your Home =?UTF-8?Q?=e2=99=a3?=");
        $unreadEmails= imap_search($loginToInbox,'SUBJECT  '.$ToSearch.' SINCE '.$dateToSearch.'');
var_dump($unreadEmails);

how can I search email with subject line.

Answer 1

It seems pretty clear to me: it's tripping on the word "Styles". That's because there's a space so it thinks there should be a new IMAP keyword. Try enclosing it in quotes:

$unreadEmails = imap_search($loginToInbox,'SUBJECT "'.$ToSearch.'" SINCE '.$dateToSearch);

You'll also have to be careful with that $dateToSearch - you'll probably have to enclose it in quotes as well, and also make sure it's in the format that the server expects (most likely RFC2822 - see section 3.3, Date and Time Specification. See this other question for an example of what it should look like.