Bug #74041 [NEW]: substr_count with length=0 broken
From: nikic
Operating system:
PHP version: 7.1.1
Package: *General Issues
Bug Type: Bug
Bug description:substr_count with length=0 broken
Description:
------------
substr_count() with length=0 currently is interpreted as using
length=strlen(haystack) instead. This bug has been introduced during the
implementation of negative offset support.
https://3v4l.org/fdbpO
Test script:
---------------
<?php
var_dump(substr_count("aaa", "a", 0, 0));
Expected result:
----------------
int(0)
Actual result:
--------------
int(3)
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Edit bug report at https://bugs.php.net/bug.php?id=74041&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74041&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74041&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74041&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=74041&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=74041&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=74041&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=74041&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=74041&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=74041&r=support
Expected behavior: https://bugs.php.net/fix.php?id=74041&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=74041&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=74041&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=74041&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74041&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=74041&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=74041&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=74041&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=74041&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=74041&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=74041&r=mysqlcfg
Thread (2 messages)
- nikic@php.net