1--TEST--
2Bug #23650 (strip_tags() removes hyphens)
3--FILE--
4<?php
5$str = <<< HERE
61:<!-- abc -  -->
72:<!doctype -- >
83:
94:<abc - def>
105:abc - def
116:</abc>
12
13HERE;
14
15echo strip_tags($str);
16echo strip_tags($str, '<abc>');
17?>
18--EXPECT--
191:
202:
213:
224:
235:abc - def
246:
251:
262:
273:
284:<abc - def>
295:abc - def
306:</abc>
31
32