is numeric? how about 1,000.00

[searain]

is_numeric -- Finds whether a variable is a number or a numeric string

But if have a 1,000.00

is_numeric(1,000.00) will return false, how can I make it return true when the value is 1,000.00?

Thanks!

[searain]

I want to tell if any numeric format value is input or not, such as 1,000.00 should be considered as numeric format value.

Thanks!

[stolzyboy]

well what you have is a floating point number, try [man]is_float[/man]

[searain]

But I am using it to test a form input. See the note I got from the php.net

Note: To test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric().

[stolzyboy]

i realize that, but if there are commas and periods, it will NEVER be numeric

[searain]

My problems are that, I want to use a function to test if the form input is a number or numeric string.

"To test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric()."

As the php.net note, using the is_numeric().

But is_numeric() rejects 1,000.00 these kind values. And I want these values, 1000,00 to be considered as a number and return true.

And I want an "offical" clean codes approach used by professionals, due to this will be used in my codes all over the sites.

Thanks.

[stolzyboy]

well you could do this, it will take out the periods, and commas for testing, if there is anything but commas, periods, or numbers, it will test false

<?
$original = "1,000.00";
//$original = "1,000.00sdsd";
$strip_comma = str_replace(",", "", $original);
$strip_period = str_replace(".", "", $strip_comma);
$new_value = $strip_period;

if (is_numeric($strip_period))
{
echo $original . " IS numeric";
}
else
{
echo $original . " IS NOT numeric";
}
?>

[drawmack]

ereg("/^{(0-9|,|.)+$/");}

if you want blanks allowed then replace + with *