hamzeen/PHP-File-Viewer/tree/master
om/samknight/jquery-filePreview
om/web-fonts/ttf/tree/master
hprobotic/G gle-Sans-Font

which font uses go in search results
primary uses go sans, roboto, product sans
open sans

generate jpg from utf-8 encoded text file in php
The standard imagestring() function does not support utf-8.
must use imagettftext() and a font that contains the glyphs for your language.

split
$string = "Hello world\tthis is\na test";
$words = preg_split('/\s+/', $string, -1, PREG_SPLIT_NO_EMPTY);
$chars = mb_str_split($string, 1, "UTF-8");