perfect price format

[ps2gamer]

i need to figure out how to validate a price so that its:
(only numbers and commas here).(only 2 numbers here)

example:

2,000.45 = CORRECT
2#fffsafs = WRONG
hi = WRONG
' = WRONG
2,000,999.555 = WRONG (has 3 decimal numbers)
2,000,999.55 = CORRECT

[bubblenut]

Regular expressions. [man]PCRE[/man]

if(preg_match('/^[1-9][0-9,]*\.[0-9]{0,2}$/', $string)) {
  echo('OK');
} else {
  echo('BAD');
}

HTH
Bubble

[ps2gamer]

i cant get it to work

// Checks to see if the price is in correct form
function check_price() {
$check = "/^[1-9][0-9,]*.[0-9]{0,2}$/";
echo "$this->price";
if ((preg_match("$check", $this->price)) OR ($this->price != "")) {
return (false);

} else {

return (true);
}
}

// Check Price
$class1->price = "$game_price";
$check_price = $class1->check_price();
if(!$check_price) {
    $error = "Invalid Characters In Price";
	echo "bad";
	exit;
}

it says bad no matter what i put iin it

[bubblenut]

// Checks to see if the price is in correct form
function check_price() {
$check = "/^[1-9][0-9,]*.[0-9]{0,2}$/";
echo "$this->price";
if ((preg_match("$check", $this->price)) && ($this->price != "")) {
return (true);

} else {

return (false);
}
}

[LordShryku]

if ((preg_match("$check", $this->price)) OR ($this->price != "")) {

Using that, as long as you don't put in a blank string, it will return. Take out the or statement. It's assumed through the matching.

[ps2gamer]

this works fine, thanks, and now how do i check to see if a date is correct format

like

01 to 12 / 01 to 31 / 2000 to 2100

(2 numbers) / (2 numbers) / (4 numbers)

[bubblenut]

Go to the php manual and start learning [MAN=PCRE]PCRE[/man] for yourself. You're not going to be spoon fed all the answers.

[crimaniak]

Originally posted by bubblenut
Regular expressions. [man]PCRE[/man]

if(preg_match('/^[1-9][0-9,]*\.[0-9]{0,2}$/', $string)) {
  echo('OK');
} else {
  echo('BAD');
}

HTH
Bubble [/B]

0,,,,,,,,,.00 will be passed as good string
1.1 will be passed as good string

I think for price better is:

/^{[0-9]{1,3}(?:,[0-9]{3})*.(?:[0-9]{2})?$/}