Edit report at http://bugs.php.net/bug.php?id=54184&edit=1
ID: 54184 Updated by: der...@php.net Reported by: yuriy at vihv dot org Summary: (int)(1.13*100) returns 112 !!!!! (should be 113) -Status: Open +Status: Bogus Type: Bug Package: Unknown/Other Function Operating System: Linux 2.6.33.3-85.fc13 PHP Version: 5.3.5 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: ------------------------------------------------------------------------ [2011-03-07 16:56:13] yuriy at vihv dot org Description: ------------ Sample code below returns 112 instead of 113. echo (int)(113); and echo 1.13*100; works just fine. Other numbers like 2.13, 1.14 works fine Well, in fact i use php 5.3.3. No i wont upgrade. I've post some bug a few years ago and still get no response. So i post it here just in case. Go ahead, mark it as "could not reproduce" and go get one more cup of coffee... Or you can really check it, bug looks a bit ugly. Test script: --------------- <?php echo (int)(1.13*100); ?> Expected result: ---------------- 113 Actual result: -------------- 112 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=54184&edit=1
