From:
Operating system: openSuSE
PHP version: 5.3.2
Package: Scripting Engine problem
Bug Type: Feature/Change Request
Bug description:Arithmetic Operator: Addition maybe have a problem
Description:
------------
PHP version: 5.3.2
I think addition operator have a problem.
Pls run the script below and the code in "Test script" box.
<?php
$a = 16.99;
$b = 6.99;
$c = 10;
if ($a < ($b + $c)) {
print "<";
} else if ($a == ($b + $c)) {
print "==";
} else {
print ">";
}
print "\n";
print $a .":". ($b + $c);
print "\n";
?>
If the number is 16.98, the result will be ok.
Test script:
---------------
<?php
for ($x=0;$x<100;$x++ ) {
for ($y=10;$y<100;$y++) {
$str = $x.'.'.$y;
print $str;
$a = floatVal($str);
$b = floatVal($x);
$c = floatVal('0.'.$y);
if ($a < ($b + $c)) {
print "<";
} else if ($a == ($b + $c)) {
print "==";
} else {
print ">";
}
print "\n";
}
}
--
Edit bug report at http://bugs.php.net/bug.php?id=52188&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=52188&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=52188&r=trysnapshot53
Try a snapshot (trunk):
http://bugs.php.net/fix.php?id=52188&r=trysnapshottrunk
Fixed in SVN:
http://bugs.php.net/fix.php?id=52188&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=52188&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=52188&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=52188&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=52188&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=52188&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=52188&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=52188&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=52188&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=52188&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=52188&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=52188&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=52188&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=52188&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=52188&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=52188&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=52188&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=52188&r=mysqlcfg
