[SOLVED] validate float

[asmith]

how can i validate a number float with just 2 decimal .

example :

 

5.01  valid

5      valid

5.001  invalid

0.05 valid

 

6650.5  valid

1.5      valid

 

!

 

[~n[EO]n~]

This falls under Regex

http://www.phpfreaks.com/forums/index.php/board,43.0.html

anyway , do this quick test 

<?php
$test = array(
"5.01",
"5",
"5.001",
"0.05",
"6650.5",
"1.5",
"2.323"
);

// if there's a dot, min 1 no max 2 no..
$regex = '/^\d+(.\d{1,2})?$/';

// test numbers ...
foreach ($test as $number) {
if (preg_match($regex, $number)) {
echo "valid ";
} else {
echo "invalid ";
}
echo $number."<Br>";
}

?>

[asmith]

thanks