[Resolved] Preg_Match Pattern

[john tindell]

Hey I have a patteren which will match the [] (bbCode) style tags in a piece of text, but i cannot get it to match the tags if the span over mulitple lines

$string = <<<eof
sd as da [b][u][i][c]sample text[/c][/i][/u][/b] asd

fasdf
[c][small][b]Hello World[/b][/small][/c]

adhsdaof usdsdiof ;adsljfdf as [u]wow[/u]sdasd
sdfgsdfs[r]way
 out[/r]
eof;

$pattern = '/\[.*?\].*?\[\/.*?\]/U';
$match_count = preg_match_all($pattern,$string,$array);
print_r($array); 

output

Array
(
    [0] => Array
        (
            [0] => [b ][u ][i ][c ]sample text[/c ][/i ][/u ][/b ]
            [1] => [c ][small ][b ]Hello World[/b ][/small ][/c ]
            [2] => [u ]wow[/u ]
        )

)

If anyone can help me match code over multiple lines would be great.

Thanks

[sciguyryan]

Muli-lines are bad for pattern matching, you can match a new line with the following:

  $pattern = '#\[(.*?)\]((\n){0,})(.*?)((\n){0,})\[\/(.*?)\]#si';
  $match_count = preg_match_all($pattern,$string,$array);
  print_r($array); 

Should do it

Cheers,

Ryan Jones

[john tindell]

Hey thanks for the reply, I kept having problems with matching the tags that i want so i ended up using the tag names to create the pattern.

$tags = array(
    'b' => 'font-weight:bold;',
    'u' => 'text-decoration: underline;',
    'i' => 'font-style: italic;',
    'small' => 'font-size:10px;',
    'large' => 'font-size:16px;',
    'hb' => 'font-weight:bold;font-size:16px;',
    'hu' => 'text-decoration: underline;font-size:16px;',
    'hbu' => 'font-weight:bold;text-decoration: underline;font-size:16px;',
    'h' => 'font-size:16px;',
    'c' => 'text-align:center;',
    'l' => 'text-aligb:left;',
    'r' => 'text-align:right;');
        
        
foreach($tags as $tag =>$val)
{
    $list .= $tag . "|";
}
$list = substr($list,0,strlen($list)-1);            
$pattern = '#\[('. $list .')\].*?\[\/('. $list .')\]#si';
$match_count = preg_match_all($pattern,$string,$array); 

It matched and works, though im not 100% sure why it works over multiple lines when i havent asked it too? O well. Thanks for the reply.