Bug #74810 [NEW]: Something odd about ordering of func_get_args() result in 7.2

From: daverandom Operating system: Any PHP version: 7.2.0alpha2 Package: Scripting Engine problem Bug Type: Bug Bug description:Something odd about ordering of func_get_args() result in 7.2 Description: ------------ When using func_get_args() in combination with array_slice() in 7.2, the results are incorrect. Hard to succinctly describe, see code sample. https://3v4l.org/oSFoM Test script: --------------- <?php function test_func_get_args() { var_dump(func_get_args()); // as expected } function test_array_slice($array) { var_dump(array_slice($array, 1)); // as expected } function test_array_slice_with_func_get_args() { var_dump(array_slice(func_get_args(), 1)); // ??? } $input = [1, 2, 3]; echo "=-=-=-= TEST func_get_args() =-=-=-=\n"; test_func_get_args(...$input); echo "\n=-=-=-= TEST array_slice() =-=-=-=\n"; test_array_slice($input); echo "\n=-=-=-= TEST 3 =-=-=-=\n"; test_array_slice_with_func_get_args(...$input); Expected result: ---------------- =-=-=-= TEST func_get_args() =-=-=-= array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } =-=-=-= TEST array_slice() =-=-=-= array(2) { [0]=> int(2) [1]=> int(3) } =-=-=-= TEST 3 =-=-=-= array(2) { [0]=> int(2) [1]=> int(3) } Actual result: -------------- =-=-=-= TEST func_get_args() =-=-=-= array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } =-=-=-= TEST array_slice() =-=-=-= array(2) { [0]=> int(2) [1]=> int(3) } =-=-=-= TEST 3 =-=-=-= array(2) { [0]=> int(1) [1]=> int(2) } -- Edit bug report at https://bugs.php.net/bug.php?id=74810&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74810&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74810&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74810&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=74810&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=74810&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=74810&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=74810&r=needscript Try newer version: https://bugs.php.net/fix.php?id=74810&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=74810&r=support Expected behavior: https://bugs.php.net/fix.php?id=74810&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=74810&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=74810&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=74810&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74810&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=74810&r=dst IIS Stability: https://bugs.php.net/fix.php?id=74810&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=74810&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=74810&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=74810&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=74810&r=mysqlcfg