#46297 [Opn->Bgs]: Round Issue

ID: 46297 Updated by: derick@php.net Reported By: rob at washeretoo dot com -Status: Open +Status: Bogus Bug Type: Math related Operating System: Linux PHP Version: 5.2.6 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://docs.sun.com/source/806-3568/ncg_goldberg.html Thank you for your interest in PHP. . Previous Comments: ------------------------------------------------------------------------ [2008-10-15 05:19:16] rob at washeretoo dot com Description: ------------ round (1125.005, 2) returns "1125.01" as expected round(11125.005, 2) returns "11125" when the value before the decimal point gets to large it simply strips the decimal point value off!?? Reproduce code: --------------- print round (1125.005, 2); print round(11125.005, 2); Expected result: ---------------- round(11125.005, 2) should return 11125.01 Actual result: -------------- round(11125.005, 2) returns 11125 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=46297&edit=1