Bug #79955 [NEW]: converting large floats to int leads to overflow or the arithmetical unit

From: peter dot fargas at informatik-handwerk dot de Operating system: PHP version: 8.0.0beta1 Package: Math related Bug Type: Bug Bug description:converting large floats to int leads to overflow or the arithmetical unit Description: ------------ (int](PHP_MAX_INT + 1) returns \PHP_INT_MIN. Increasing the argument passed, zero result can be achieved. Same goes for the \intval() function. This happens for all current PHP versions - reported by https://3v4l.org/iDnt4 7.2.0 - 7.2.33, 7.3.0 - 7.3.21, 7.4.0 - 7.4.9 8.0.0alpha1 - beta1 Test script: --------------- <?php echo '---- INTMAX vs INTMAX+1'. \PHP_EOL; var_dump(\PHP_INT_MAX); var_dump(\PHP_INT_MAX+1); echo '---- INTMAX to float and back'. \PHP_EOL; var_dump(\intval((float)\PHP_INT_MAX)); var_dump((int)((float)\PHP_INT_MAX)); echo '---- INTMAX+1 to float and back'. \PHP_EOL; var_dump(\intval(\PHP_INT_MAX+1)); var_dump((int)(\PHP_INT_MAX+1)); var_dump(\PHP_INT_MIN); echo '---- ...rendezvous point is...'. \PHP_EOL; var_dump(\intval(18446744073709551615)); Expected result: ---------------- one of: - \PHP_MAX_INT (just as the documentation states), a sign stable result - type error - zero Actual result: -------------- overflow or the arithmetical unit -- Edit bug report at https://bugs.php.net/bug.php?id=79955&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79955&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79955&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79955&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79955&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79955&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79955&r=support Expected behavior: https://bugs.php.net/fix.php?id=79955&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79955&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79955&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79955&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79955&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79955&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79955&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79955&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79955&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79955&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79955&r=mysqlcfg