note 47911 modified in language.operators.comparison by danbrown
| From: | danbrown@php.net | Date: | Thu, 18 Jun 2009 14:14:53 +0000 |
| Subject: | note 47911 modified in language.operators.comparison by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-157088@lists.php.net to get a copy of this message | ||
Hi folks,
to the float comparison problem...
This worked for me:
<?php
//! 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,$f2)?("equal"):("not
equal"))."<br />";
?>
--was--
Hi folks,
to the float comparison problem...
This worked for me:
//! compare two floating point values, return true if they are equal
//! (enough) or false otherwise
function float_equal($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 />";
http://php.net/manual/en/language.operators.comparison.php