php preg_match解析直方图字符串

Question

I have ImageMagick histogram color info in string, I want to parse string using php preg_match() function, sorry I have not more knowledge about Regular Expression.

<?php 
 $str = "588: ( 99, 75, 52) #634B34 srgb(99,75,52)";
 preg_match('/(?P<colors>\d+\:)/', $str, $matches);
 print_r($matches);
?>

Expected output

Array
(
    [colors] => 588,
    [red] => 99,
    [green] => 75,
    [blue] => 52
)

How do I get the desired output, or is there another way to get colors and density?

Answer 1

I think you want something like this,

(?P<colors>\d+):\s*\(\s*(?P<red>\d+),\s*(?P<green>\d+),\s*(?P<blue>\d+)

DEMO