Edit report at https://bugs.php.net/bug.php?id=64390&edit=1
ID: 64390 Updated by: johan...@php.net Reported by: bugzilla77 at gmail dot com Summary: round() corrupted -Status: Open +Status: Not a bug Type: Bug Package: Math related Operating System: Win 7 PHP Version: 5.5.0alpha5 Block user comment: N Private report: N New Comment: Floating point values have a limited precision. Hence a value might not have the same string representation after any processing. That also includes writing a floating point value in your script and directly printing it without any mathematical operations. If you would like to know more about "floats" and what IEEE 754 is, read this: http://www.floating-point-gui.de/ Thank you for your interest in PHP. . Previous Comments: ------------------------------------------------------------------------ [2013-03-08 11:45:17] bugzilla77 at gmail dot com Description: ------------ Negative zero in mathematics does not exist. Test script: --------------- <?=round(-0.1)?> Expected result: ---------------- 0 Actual result: -------------- -0 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64390&edit=1
