Bug #64668 [Opn->Nab]: Casting from string containing exponential notation number to int

Edit report at https://bugs.php.net/bug.php?id=64668&edit=1 ID: 64668 Updated by: johannes@php.net Reported by: biowep at gmail dot com Summary: Casting from string containing exponential notation number to int -Status: Open +Status: Not a bug Type: Bug Package: *Programming Data Structures Operating System: Windows 7 x64 SP1 PHP Version: 5.4.14 Block user comment: N Private report: N New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php the cast from string to int cuts the number of on the first non-digit (essentially using the system's atoi() function) this is expected behavior. Previous Comments: ------------------------------------------------------------------------ [2013-04-18 17:34:06] biowep at gmail dot com Description: ------------ When trying to cast a numeric string value in the exponential notation to int, the result doesn't match with the initial value. While the casting to float from string works well. Also casting to int from the same value stored in a float variable workes well. The function intval() has the same problem. Test script: --------------- <?php echo 1E2 . "<br />"; echo (float)1E2 . "<br />"; echo (int)1E2 . "<br />"; echo intval(1E2) . "<br />"; echo (float)"1E2" . "<br />"; echo (int)"1E2" . "<br />";//problem echo intval("1E2") . "<br />";//problem ?> Expected result: ---------------- 100 100 100 100 100 100 100 Actual result: -------------- 100 100 100 100 100 1 1 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64668&edit=1