--TEST-- Bug #53377 (imap_mime_header_decode() doesn't ignore \t during long MIME header unfolding) --SKIPIF-- <?php if (!extension_loaded("imap")) { die("skip imap extension not available"); } ?> --FILE-- <?php $s = "=?UTF-8?Q?=E2=82=AC?="; $header = "$s\n $s\n\t$s"; var_dump(imap_mime_header_decode($header)); --EXPECT-- array(3) { [0]=> object(stdClass)#1 (2) { ["charset"]=> string(5) "UTF-8" ["text"]=> string(3) "€" } [1]=> object(stdClass)#2 (2) { ["charset"]=> string(5) "UTF-8" ["text"]=> string(3) "€" } [2]=> object(stdClass)#3 (2) { ["charset"]=> string(5) "UTF-8" ["text"]=> string(3) "€" } }