Description:
------------
In the code below, i get wrong results with php 5.2.3 and 5.2.2.

The code tries to round 3 digit numbers to 2 digit numbers. Round fails at 1.225 and calculated numbers at 4.264.

Iam creating a big calculating software with this language and i hope this is my mistake :)

Reproduce code:
---------------
<?php
	for ( $i=0.01;$i<10;$i=$i+0.003 )
	{ 
		echo $i." -> ".calcRound( $i )."<br>";
		echo round($i,2)."<br>";
	}

	function calcRound( $inNumber )
	{
		$intnum = $inNumber*100;
		$intnum = (int) $intnum;

		$decnum = $inNumber*100;

		if ( $decnum - $intnum > 0.4 ) { $intnum++; }

		return $intnum / 100;
	}
?>

Expected result:
----------------
...
1.255 -> 1.26 (calculated round)
1.26 (round function)
...

...
4.264 -> 4.26 (calculated round)
4.26 (with round function)
4.267 -> 4.27 (calculated round)
...

Actual result:
--------------
...
1.255 -> 1.26 (calculated round)
1.25 (round function)
...

...
4.264 -> 4.27 (calculated round)
4.26 (with round function)
4.2670000000001 -> 4.27 (calculated round)
...