running a function through large text

Chadian22

I have a blog post, and i want to run the function ... functionit() on.. ive created this function to look for pictureit(), and it successfully does it job but only one instance, how would i have my function run through out the entire block of text.

function functionit($text){
$slicedup = strrchr($text, 'pictureit(');
$slicedup = str_replace("pictureit(", "", $slicedup);
$slicedup = str_replace(strrchr($slicedup, ')'),"",$slicedup);

list($id, $style, $width, $height, $comments, $float) =
   split(":", $slicedup, 6);
echo "id: $id , style: $style, width: $width, height: $height, comments: $comments, float: $float";
}

functionit("blah blah blah pasdfa pictureit(id:style:width:height:comments:float) asdfa");

i was practicing on that block of text.. but what if i had more than one pictureit() it only caught the 2nd instance found... and ill probably have several pictureit() functions. i figure there's a while statememnt needed, but i do not know how to implement it.

Weedpacket

Using a regular expression would almost certainly be easier. What precisely do you want the result to be (in terms of the original $text)?

Chadian22

well in my blogposts im going to be doing something like hey yeah check out my pictures from the weekend pictureit($pictureid, etc) , but then i want to take that function look for pictureit( and take the data in the picture(it and actually put it in to a function ive made called pictureit(. I just want to find where it says pictureit(asdf:asdfa:adsfa) and replace it with the function pictureit() that i have created.

edit: sorry, so i am search $text , for pictureit() but at the same time taking the values inbetween the () that ive typed and inserting them into an actual function called picture it, to seperate the values i have chosen : (semi-colon). so an example would be, pictureit(id:othervalue:again:differentvalue)

vaaaska

http://www.php.net/preg_replace_callback/

Something like...

	function parse($text)
	{
		$f = '|pictureit(.*)|sUi';
		return preg_replace_callback($f,'pictureit',$text);	
	}

But I'm quite horrible with regex... ;P

There is a more direct way, I think, but I can't remember...

Chadian22

think your on to something but its not being formatted right , i dunno.

Warning: Missing argument 2 for pictureit() in C:\pear\bbcode.php on line 35

Warning: Missing argument 3 for pictureit() in C:\pear\bbcode.php on line 35

Warning: Missing argument 4 for pictureit() in C:\pear\bbcode.php on line 35

Warning: Missing argument 5 for pictureit() in C:\pear\bbcode.php on line 35

Warning: Missing argument 6 for pictureit() in C:\pear\bbcode.php on line 35

i parsed with parse($text);

$text = "blah blah blah pasdfa pictureit(id:style:width:height:comments:float)a asdfaasss lets get another instance of the function in here pictureit(id2:style2:width2:height2:comments2:float2)asdfasdf";

vaaaska

This is still rather crude, but it's hacked up from something I had laying around. However, I'm changing the way you input your functions...

I'm sure somebody could come along and sort out a regex to work with my previous example, but like I said, I'm rather untalented in that department and it would take me all day to get it right.

These work...

function parse($text) 
{ 
	$f = '/<pictureit:(\S+)\b(.*)(?:(?<!br )(\/))?'.chr(62).'(?(3)|(.+)<\/pictureit:\1>)/sUi';
	return preg_replace_callback($f,'pictureit',$text);     

}

// just to show that the callback is working...
// you'll need to sort it out from here...
function pictureit($arr)
{
	$f = implode(',',$arr);
	return $f;
}

// notice how i've changed your function call...
$text = "blah blah blah pasdfa <pictureit:id,style,width,height,comments,float/> a asdfaasss lets get another instance of the function in here <pictureit:id,style,width,height,comments,float/> asdfasdf";  

echo parse($text);