note 47911 added to language.operators.comparison
| From: | sven dot heyll at web dot de | Date: | Sun, 05 Dec 2004 09:19:46 +0000 |
| Subject: | note 47911 added to language.operators.comparison | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-81384@lists.php.net to get a copy of this message | ||
Hi folks,
to the float comparison problem...
This worked for me:
//! compare two floating point values, return true if they are equal
//! (enough) or false otherwise
function float_equal($f1, $f2)
{
return ($f1 > $f2) ? (false) : (!($f1 < $f2));
}
// compare floats
$f1 = 0.037;
$f2 = 1000387.978;
echo "$f1 and $f2 are ".(float_equal($f1,$f2)?("equal"):("not
equal"))."<br />";
$f1 = 0.3;
$f2 = 0.3;
echo "$f1 and $f2 are ".(float_equal($f1,$f2)?("equal"):("not
equal"))."<br />";
----
Manual Page -- http://www.php.net/manual/en/language.operators.comparison.php
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