Description:
------------
---
From manual page: http://www.php.net/mysqli.poll#refsect1-mysqli.poll-examples
---
This script below is a copy and paste from the example with comments added.  If reap_async_query() fails, $processed will not be incremented, which means it will always remain less than the number of rows in $all_links, meaning "while ($processed < count($all_links))" will remain true, thereby creating and endless loop.

The easiest way to duplicate is to misspell one of the field names in the query string.  However, time there is a query problem, this behavior will occur.


Test script:
---------------
$link1 = mysqli_connect();
$link1->query("SELECT 'test'", MYSQLI_ASYNC);
$all_links = array($link1);
$processed = 0;
do {
    $links = $errors = $reject = array();
    foreach ($all_links as $link) {
        $links[] = $errors[] = $reject[] = $link;
    }
    if (!mysqli_poll($links, $errors, $reject, 1)) {
        continue;
    }
    foreach ($links as $link) {	
        if ($result = $link->reap_async_query()) {   // if reap fails
            print_r($result->fetch_row()); 
            mysqli_free_result($result); 
            $processed++;                            // this not incremented
        }
    }
} while ($processed < count($all_links));	     // this always true