Bug #52899 [NEW]: Incorrect array key cast (string to integer) when key > PHP_INT_MAX

From: Operating system: Linux 32-bit PHP version: 5.2.14 Package: Scripting Engine problem Bug Type: Bug Bug description:Incorrect array key cast (string to integer) when key > PHP_INT_MAX Description: ------------ When using string as an array's key which looks like integer - the key is converted to integer. That is ok for integers not bigger than PHP_INT_MAX. But when the key is: PHP_INT_MAX < key < 3000000000 (on 32-bit system) the key is converted to incorrect integer (it overflows :) The key should remain string and not be converted to incorrect int. See test script, expected and actual results. Doc: http://www.php.net/manual/en/language.types.array.php A key may be either an integer or a string. If a key is the standard representation of an integer, it will be interpreted as such (i.e. "8" will be interpreted as 8, while "08" will be interpreted as "08"). Related bugs: #51430 #48254 #52025 Test script: --------------- $array['2000000000'] = 1; // ok $array['2147483647'] = 2; // ok $array['2147483648'] = 3; // incorrect $array['2999999999'] = 4; // incorrect $array['3000000000'] = 5; // ok again var_dump($array); Expected result: ---------------- array(5) { [2000000000]=> int(1) [2147483647]=> int(2) ["2147483648"]=> int(3) ["2999999999"]=> int(4) ["3000000000"]=> int(5) } Actual result: -------------- array(5) { [2000000000]=> int(1) [2147483647]=> int(2) [-2147483648]=> // int key overflow int(3) [-1294967297]=> // int key overflow int(4) ["3000000000"]=> int(5) } -- Edit bug report at http://bugs.php.net/bug.php?id=52899&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=52899&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=52899&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=52899&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=52899&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=52899&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=52899&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=52899&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=52899&r=needscript Try newer version: http://bugs.php.net/fix.php?id=52899&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=52899&r=support Expected behavior: http://bugs.php.net/fix.php?id=52899&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=52899&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=52899&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=52899&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=52899&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=52899&r=dst IIS Stability: http://bugs.php.net/fix.php?id=52899&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=52899&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=52899&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=52899&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=52899&r=mysqlcfg