Description:
------------
When query string contains : (colon) parse_url() fails parses relative URIs improperly (like it happened before 5.4.7).

For 5.6 or older: If query string contains e.g. `a=1:337` then `port` will be `337`, when it's e.g. `a=b:c` then the port is correct.

https://3v4l.org/aBfGB

Test script:
---------------
<?php

var_dump(
    parse_url('//php.net/manual/en/function.parse-url.php?v=1:337')
);

Expected result:
----------------
array(3) {
  ["host"]=>
  string(7) "php.net"
  ["path"]=>
  string(33) "/manual/en/function.parse-url.php"
  ["query"]=>
  string(7) "v=1:337"
}

Actual result:
--------------
array(2) {
  ["path"]=>
  string(42) "//php.net/manual/en/function.parse-url.php"
  ["query"]=>
  string(7) "v=1:337"
}