Doc #74190 [NEW]: mysqli_num_rows return value on error
| From: | phpdoc at mail dot my1 dot info | Date: | Wed, 01 Mar 2017 10:29:20 +0000 |
| Subject: | Doc #74190 [NEW]: mysqli_num_rows return value on error | ||
| Groups: | php.doc.bugs | ||
| Request: | Send a blank email to doc-bugs+get-14469@lists.php.net to get a copy of this message | ||
From: phpdoc at mail dot my1 dot info
Operating system:
PHP version: Irrelevant
Package: Documentation problem
Bug Type: Documentation Problem
Bug description:mysqli_num_rows return value on error
Description:
------------
---
From manual page: http://www.php.net/mysqli-result.num-rows
---
it doesnt say what gets returned on error (for comparison
mysql_num_rows, according to the docs throws false).
by thorwing in a value that cant work (for example a string), it
returned NULL and a warning.
since both NULL and 0 are variables that are false-y and according to
http://php.net/manual/de/types.comparisons.php#types.comparisions-loose
both (NULL == 0) and (NULL == 0) evaluate to true there should be a
warning box, noting that strict comparison using === should be
appropriate, similar to http://php.net/manual/de/function.strpos.php
Test script:
---------------
<?php
var_dump(mysqli_num_rows("abc"));
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Edit bug report at https://bugs.php.net/bug.php?id=74190&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74190&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74190&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74190&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=74190&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=74190&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=74190&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=74190&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=74190&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=74190&r=support
Expected behavior: https://bugs.php.net/fix.php?id=74190&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=74190&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=74190&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=74190&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74190&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=74190&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=74190&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=74190&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=74190&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=74190&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=74190&r=mysqlcfg