Doc #73123 [NEW]: Substr documentation is wrong and misleading

From: gregoire dot daussin at gmail dot com Operating system: PHP version: 5.6.26 Package: Documentation problem Bug Type: Documentation Problem Bug description:Substr documentation is wrong and misleading Description: ------------ --- From manual page: http://www.php.net/function.substr --- Substr documentation talks about characters everywhere, while the function does not cut string characters wise but bytes wise, this is especially true for UTF-8. The documentation should talk about bytes, and make a note about mb_substr. Please fix, it is confusing, I've lied to since years :(. -- Edit bug report at https://bugs.php.net/bug.php?id=73123&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=73123&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=73123&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=73123&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=73123&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=73123&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=73123&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=73123&r=needscript Try newer version: https://bugs.php.net/fix.php?id=73123&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=73123&r=support Expected behavior: https://bugs.php.net/fix.php?id=73123&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=73123&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=73123&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=73123&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=73123&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=73123&r=dst IIS Stability: https://bugs.php.net/fix.php?id=73123&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=73123&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=73123&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=73123&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=73123&r=mysqlcfg