Bug #75611 [NEW]: array_slice BC breaking

From: nodex at icloud dot com Operating system: MacOs and Ubuntu PHP version: 7.1.12 Package: Arrays related Bug Type: Bug Bug description:array_slice BC breaking Description: ------------ When using array_slice on a smaller array, PHP 7.1.4 (untested newer versions) returns a blank array if the size of the array is less than the $length parameter of array_slice In php 5.6 this was not the case, the function simply returned the entire array if it was shorter. Surely this must be a bug or are we now meant to count the array to check it's the right size before calling array_slice? Test script: --------------- # Basic reproduction test $array = range(0,10); $slice = array_slice($array,12); // same with and without the offset parameter! print_r($slice); // Empty! $array = range(0.5); $slice = array_slice($array,3); print_r($slice); // As expected 3 elements! -- Edit bug report at https://bugs.php.net/bug.php?id=75611&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75611&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75611&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75611&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75611&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75611&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75611&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75611&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75611&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75611&r=support Expected behavior: https://bugs.php.net/fix.php?id=75611&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75611&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75611&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75611&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75611&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75611&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75611&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75611&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75611&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75611&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75611&r=mysqlcfg