Description:
------------
The sample script (Example #2) from your web page:
"https://www.php.net/manual/en/expect.examples-usage.php" 
has been used.

It works  under php5 and expect 0.3.3 but not under php7 and expect 0.4.0.

It should be easy to reproduce the issue. Just issue the script on a linux system. I have worked with expect 0.3.3 and prior versions since about 8 years. I never had any issues. I was pretty happy to see 0.4.0 with support of php7 but it really has some issues!

In your documentation "https://www.php.net/manual/en/function.expect-expectl.php" you write: "If match is provided, then it is filled with the result of search. The matched string can be found in match[0]. The match substrings (according to the parentheses) in the original pattern can be found in match[1], match[2], and so on, up to match[9] (the limitation of libexpect)."

This does not work in the current version. The result of search does not fill "match". §match[0] is not filled!



Test script:
---------------
Your own script does not work:
"https://www.php.net/manual/en/expect.examples-usage.php"


Expected result:
----------------
...
case UNAME:
$uname .= $match[0];
print "Result: $uname";
break;
...


=>
$uname provid

Actual result:
--------------
...
case UNAME:
$uname .= $match[0];
print "Result: $uname";
break;
...


=>
$uname does not provide a result!