ID: 47576
User updated by: fischikowski at web dot de
-Summary: code-execution dependent on echo
Reported By: fischikowski at web dot de
Status: Open
Bug Type: Scripting Engine problem
Operating System: Windows Vista 32bit
PHP Version: 5.2.9
New Comment:
I could shorten the test-code (the previous was my original working
code):
function test() {
$array = array("test");
foreach($array as $element) {
for($j=0;$j<5;$j++) {
continue 2;
}
return true;
}
return false;
}
echo test()?"true":"false";
I expect, that this returns false, because "continue 2" should step to
the next foreach-loop (and "return true" should not be executed).
But it happens, that true is returned instead.
If you insert echo ""; in front of the "return true" everything
works fine again (it then returns false).
I also noticed, that the outer loop has to be a foreach-loop, if it was
a for-loop the result would be also correct.
Previous Comments:
------------------------------------------------------------------------
[2009-03-05 17:34:29] fischikowski at web dot de
Description:
------------
The echo ""; affects the "return true;" below.
As long as the echo is there everything works as expected, if you put
"//" in front of the echo, the return will be called even if it should
not.
Reproduce code:
---------------
function matchHostList($host, $list_file) {
$host = explode(".", $host);
//$list_contents = explode("\n", file_get_contents($list_file));
$list_contents = array("www.google.de");
foreach($list_contents as $list_host) {
$list_host = explode(".", rtrim($list_host));
//if the list-host is more specific than the tested host we
can't
match
if(count($host) < count($list_host))
continue;
for($i = 1;$i<=count($list_host) && $i <= count($host);$i++) {
if($list_host[count($list_host)-$i] !=
$host[count($host)-$i])
continue 2;
}
echo ""; //this is necessary to avoid wrong return
return true;
}
return false;
}
echo matchHostList("false.google.de", "")?"true":"false";
Expected result:
----------------
When running as shown above this returns false (because "continue 2;"
continues the loop above the "return true;"), this is OK.
If you remove the echo ""; above the "return true;" You would expect
that nothing changes (because we only removed some null-output), but in
fact the return value changes to true.
Actual result:
--------------
see Expected result
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=47576&edit=1
