Bug #75964 [NEW]: mysqli::query emits php warning instead of throwing an exception

From: Date: Thu, 15 Feb 2018 14:09:36 +0000
Subject: Bug #75964 [NEW]: mysqli::query emits php warning instead of throwing an exception
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-213971@lists.php.net to get a copy of this message
From:             andre dot swinka at gmail dot com
Operating system: CentOS release 6.9 (Final)
PHP version:      7.1.14
Package:          MySQLi related
Bug Type:         Bug
Bug description:mysqli::query emits php warning instead of throwing an exception

Description:
------------
The PHP manual states, that errors, which occur using mysqli, can be
converted into exceptions by using mysqli_report.

But even with corresponding settings made by using mysqli_report,
\mysqli::query() is not throwing an exception but is emitting a PHP
warning.

This makes it very hard to handle the issue locally as the emitted PHP
warning is hitting the PHP error handler instead of a local try-catch
block.

I am facing the issue with a mysql transaction deadlock/conflict right
now, but it can be reproduced easily with an empty query, see test
script and actual result.

mysqli should honor the settings made by using mysqli_report for all
kinds of error.

Test script:
---------------
<?php
mysqli_report(MYSQLI_REPORT_ERROR|MYSQLI_REPORT_STRICT);

$mysqli = new \mysqli('<host>', '<user>', '<pwd>',
'<database>'); //
replace <host>,.. with connection settings
$mysqli->query('');


Expected result:
----------------
PHP Fatal error:  Uncaught mysqli_sql_exception: mysqli::query(): Empty
query in /vagrant/test.php:5
Stack trace:
#0 /foo/test.php(5): mysqli->query('')
#1 {main}
  thrown in /foo/test.php on line 5


Actual result:
--------------
PHP Warning:  mysqli::query(): Empty query in /foo/test.php on line 5


-- 
Edit bug report at https://bugs.php.net/bug.php?id=75964&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=75964&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=75964&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=75964&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=75964&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=75964&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=75964&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=75964&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=75964&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=75964&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=75964&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=75964&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=75964&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=75964&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75964&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=75964&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=75964&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=75964&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=75964&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=75964&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=75964&r=mysqlcfg



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