Doc #62101 [NEW]: Example coding error
From:
Operating system: Windows 7
PHP version: 5.3.13
Package: Documentation problem
Bug Type: Documentation Problem
Bug description:Example coding error
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
--
Edit bug report at https://bugs.php.net/bug.php?id=62101&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=62101&r=trysnapshot54
Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=62101&r=trysnapshot53
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=62101&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=62101&r=fixed
Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=62101&r=needdocs
Fixed in release: https://bugs.php.net/fix.php?id=62101&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=62101&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=62101&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=62101&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=62101&r=support
Expected behavior: https://bugs.php.net/fix.php?id=62101&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=62101&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=62101&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=62101&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=62101&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=62101&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=62101&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=62101&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=62101&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=62101&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=62101&r=mysqlcfg
Thread (2 messages)
- Jack dot Toering at LeadingEdgeITA dot com