Retrieve all colors from CSS file and store into array 1

[Sleidia]

Hi,

Using PHP, what would be the easiest way to retrieve all colors from a CSS file and store them all into an array?

Thanks!

 

[feherke]

Hi

See how Color is defined in CSS 2.1 then parse out all matching strings with [tt]preg_match_all()[/tt].

Feherke.

http://rootshell.be/~feherke/

 

[feherke]

Hi

Hmm... I think the situation is not so simple as I though first. If shorthand properties are used with named colors, it can be tricky :

* {
  background: url(image.png) aliceblue repeat-x center 33%;
}

Feherke.

http://rootshell.be/~feherke/

 

[feherke]

Hi

Your question is an interesting one. I think I would do it like this :

$css=file_get_contents('example.css');

preg_match_all('/\b(?:color|background|border)[^:]*:(.*?);/',$css,$rule);

$value=array();
foreach ($rule[1] as $one) $value=array_merge($value,preg_split('/\s+/',$one));

$value=array_unique($value);

$value=array_filter($value,'check');

print_r($value);

function check($what)
{
  $keyword=array('none','inherit','repeat','repeat-x','repeat-y','no-repeat','scroll','fixed','top','bottom','left','right','center','thin','medium','thick','hidden','dotted','dashed','solid','double','groove','ridge','inset','outset','collapse');
  if (substr($what,0,1)=='#') return true;
  if (strtolower(substr($what,0,3))=='rgb') return false;
  if (is_numeric(substr($what,0,1))) return false;
  if (substr($what,0,1)=='.') return false;
  if (strtolower(substr($what,0,3))=='url') return false;
  if (in_array($what,$keyword)) return false;
  return true;
}

Feherke.

http://rootshell.be/~feherke/

 

[Sleidia]

Thanks a lot feherke

Actually, I would only need to catch #------ style colors.
So, preg_match_all would be enough.

But I suck at PREGs

Thanks again!

 

[feherke]

Hi

Doh, that is too simple.

$css=file_get_contents('example.css');
                                             
preg_match_all('/#[[:xdigit:]]{3}(?:[[:xdigit:]]{3})?/',$css,$color);
                                                           
print_r($color[0]);

Feherke.

http://rootshell.be/~feherke/

 

[Sleidia]

ahahaha ... thanks for showing me how much I suck at it

And most of all, thanks for taking time to post the right PREG sequence.

Have a nice day