Edit report at https://bugs.php.net/bug.php?id=64491&edit=1
ID: 64491 Updated by: ni...@php.net Reported by: mihai at iorga dot eu Summary: float numbers won't add up -Status: Open +Status: Not a bug Type: Bug Package: Math related Operating System: any PHP Version: 5.4.13 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: ------------------------------------------------------------------------ [2013-03-22 14:09:13] mihai at iorga dot eu Description: ------------ echo (int)((0.1 + 0.7) * 10); Test script: --------------- echo (int)((0.1 + 0.7) * 10); ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64491&edit=1