encoding - PHP trouble converting encoded Hebrew (ISO-8891-8-i) string back to Hebrew characters -

the subject of email working is:

=?iso-8859-8-i?b?4gnjceqj5qnmcecj6anpceoj6wnsce0j7w==?= 

however, no combination of decoding (or mb_convert_encoding) seems return looking like

בגדהוזחטיךכלםמן 

i noticing iso-8891-8-i seems missing of php's docs, i'm hoping i'm missing obvious.

figured out :)

// fix logical/visual order encodings, e.g. iso-8859-8-i; php doesn't support conversion these encodings drop ordering part of encoding string     if ( stripos($from_encoding, 'iso-8859-8') !== false )     {         $from_encoding = 'iso-8859-8';     } 

it's -i portion mb_convert_encoding doesn't like.