Doesn't see the character in the database?

Question

PHP

Encoding seems to be ok. In the database there is such a fragment of text with a hyphen:

Regular /-/ismdoes not see it, what could be the problem and how to determine what kind of character this is?

Answer 1

It is rather not a classic "hyphen" (-), but an em or short dash ("-" or "-"). Alt codes 0151 and 0150 respectively.