Re: [PHP] Unexpected result in floor function

2003-11-17 Thread Marek Kilimajer
ruben wrote: Hi: Why is the "floor" function returning 27564 instead of 27565 in this script? PHP version is 4.2.2. Thanks! Ruben. #!/usr/bin/php -q $b = 275.65 * 100; $b = (int)$b; /* $b was a floating point number with value something like 27564.989, when displayed it shows correctly

Re: [PHP] Unexpected result in floor function

2003-11-17 Thread Randal Neirynck
This has to do with the floating point precision. I quote the manual: It is quite usual that simple decimal fractions like 0.1 or 0.7 cannot be converted into their internal binary counterparts without a little loss of precision. This can lead to confusing results: for example, floor((0.1+0.7)*10)