need regular expression for max(x1, x2, ..)

[mash4077]

Hi there,

i need a regexp to test strings like "max(x, y)", "max(x, y, z)".
In other words, i have to check the correctens of the php-function max().

How can i do this? 😕

Thanx,
mash4077

[bpat1434]

"#max(([0-9]{1,3}),(\s)?([0-9]{1,3})(,(\s)?[0-9]{1,3})?)#"

That should work....

Yes... yes it does work.....

$strings = array('max(23, 54)', 'max(157,72,83)', 'max(22,15, 0)');
$pattern = "#max\(([0-9]{1,3}),(\s)?([0-9]{1,3})(,(\s)?[0-9]{1,3})?\)#";

foreach($strings as $string)
{
	if(preg_match($pattern, $string))
	{
		echo '<span style="color: #00f;"><b>Match Found!!</b></span> <i>'.$string.'</i><br />';
	}
	else
	{
		echo '<span style="color: #f00;"><b>No Match!!</b></span> <i>'.$string.'</i><br />';
	}
}

The only limitation is the size of the numbers. Right now they are 3 digit numbers (0 - 999). If you need larger than 1000, just edit where I have "{1,3}" to be "{1,X}" where X is the length of the number (4 integers (2195), 7 integers (4281052)).

~Brett