Bug #71648 [NEW]: substr('abc', 3) returns string(0) "" for php7

From: sigma_z at sigma-scripts dot de Operating system: Ubuntu 14 PHP version: 7.0Git-2016-02-23 (snap) Package: Strings related Bug Type: Bug Bug description:substr('abc', 3) returns string(0) "" for php7 Description: ------------ When using substr on the end of a given string than it returns an emtpy string instead of a boolean false for php7 or greater. Test script: --------------- for php < 7 <?php substr('abc', 3) returns false ?> for php >= 7 <?php substr('abc', 3) returns string(0) "" ?> The documentation says (which does not apply for php7): <?php var_dump(substr('a', 1)); // bool(false) ?> Expected result: ---------------- Whether update the documentation on http://php.net/manual/en/function.substr.php if this is the desired behavior or fix substr() when trying to get the string on the end of the given string. -- Edit bug report at https://bugs.php.net/bug.php?id=71648&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71648&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71648&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71648&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71648&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71648&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71648&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71648&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71648&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71648&r=support Expected behavior: https://bugs.php.net/fix.php?id=71648&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71648&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71648&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71648&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71648&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71648&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71648&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71648&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71648&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71648&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71648&r=mysqlcfg