$es = [];
$es[] = ['hello_world and/other.planets', 'hello_world-20and-2fother.planets']; // allowed chars
$es[] = ['hello/world+-#@{}', 'hello-2fworld-2b-2d-23-40-7b-7d']; // escaped chars
+ $es[] = ["LF-\nTAB-\tCR-\remojiskullđź’€", 'LF-2d-aTAB-2d-9CR-2d-demojiskull-f0-9f-92-80']; // short with emoji
+ $es[] = ["LF-\nTAB-\tCR-\remojibombđź’Łemojiskullđź’€", '-5d9324e052f6e10240dce5029c5e8525']; // long with emoji
$es[] = ['123456789 123456789 123456789 123456789 123456789 123', '123456789-20123456789-20123456789-20123456789-20123456789-20123']; // spaces are escaped
$es[] = ['123456789-123456789-123456789-123456789-123456789-123456789-123', '123456789-123456789-123456789-123456789-123456789-123456789-123']; // long but allowed
$es[] = ['123456789-123456789-123456789-123456789-123456789-123456789-1234', '-afe584fe1d38b9a007df7d7ba30558e2']; // too long, md5 fallback