From:             jeb at webco dot tv
Operating system: Linux / Ubuntu or Fedora
PHP version:      5.1.4
PHP Bug Type:     Math related
Bug description:  Comparison operator fails with certain numbers

Description:
------------
Code 1 listed below does not work as expected. Code 2 does. Interesting
bug. If I replace the "<= 0.01" with "< 0.02", it does work as expected.

Reproduce code:
---------------
Code 1:
$data['low'] = 0.04;
$data['high'] = 0.05;

if ($data['high'] - $data['low'] <= 0.01)
        print "it works";

Code 2:
$data['low'] = 0.02;
$data['high'] = 0.03;

if ($data['high'] - $data['low'] <= 0.01)
        print "it works";

Expected result:
----------------
Both instances should print "it works."

Actual result:
--------------
Code 1 prints nothing.
Code 2 prints "it works".

-- 
Edit bug report at http://bugs.php.net/?id=37683&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=37683&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): 
http://bugs.php.net/fix.php?id=37683&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=37683&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=37683&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=37683&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=37683&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=37683&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=37683&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=37683&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=37683&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=37683&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=37683&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=37683&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=37683&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=37683&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=37683&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=37683&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=37683&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=37683&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=37683&r=mysqlcfg

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