Checking text for a string to run though function

[jobbe]

Hi, I have written a function which will replace a string like:

 

{-type:button|info:item|text:Read more about item-}

 

with the following

 

<input type="button" class="button" href="popup.php?r=item" value="Read more about item" />

 

The problem with this function is that I cannot run this on the entire page, since it would just return the first button.

So I need help.

I need a function that will check a string of text for the following combination: {- some text -}

And then replace that string with the output from the function.

 

It's important that the content between {- and -} can be changed, since the content acts as "variables" for my function.

 

<?PHP
function replaceText($str){
$dat = explode('{-',$str);
$dat = explode('-}',$dat[1]);
$dat = explode('|',$dat[0]);
foreach($dat as $id => $str){
	$out = explode(':',$str);
	$new[$out[0]] = $out[1]; 
}
if($new['type']=='button') return '<input type="button" class="button" href="popup.php?r='.$new['info'].'" value="'.$new['text'].'" />';
if($new['type']=='link') {
	$http = 'http://';
	if($new['secure']=='yes') $http = 'https://';
	return '<a class="button" href="'.$http.$new['link'].'" target="'.$new['target'].'">'.$new['text'].'</a>';
}
}

$str_1 = '{-type:button|info:item|text:Read more about item-}';
$str_2 = '{-type:link|target:blank|link:www.google.com|secure:no|text:Read more about item-}';

$str = $str_1.$str_2;

echo replaceText($str_1).'<br />';
echo replaceText($str_2).'<br />';
echo replaceText($str).'<br />';
?>

[Psycho]

make the function recursive where it searches for text matching the pattern, replaces it and then calls the function again until all matches have been found/replaced. I made a lot of changes to your function to remove inefficiencies.

 

function replaceText($str)
{
    //Search the string for a {} match
    if(preg_match("#{-[^-]+-}#", $str, $matchAry)==0)
    {
        //If no matches found return the string
        return $str;
    }

    //Parse the match found
    $matchStr = $matchAry[0];
    $data = array();
    foreach(explode('|', substr($matchStr, 2, -2)) as $pair)
    {
        list($name, $value) = explode(':', $pair);
        $data[$name] = $value;
    }

    //Determine replacement string for match found
    switch($data['type'])
    {
        case 'button':
            $replaceStr = "<input type=\"button\" class=\"button\" href=\"popup.php?r={$data['info']}\" value=\"{$data['text']}\" />";
            break;

        case 'link':
            $http = ($data['secure']=='yes') ? 'https://' : 'http://';
            $replaceStr = "<a class=\"button\" href=\"{$http}{$data['link']}\" target=\"{$data['target']}\">{$data['text']}</a>";
            break;

        default:
            //Need a default to prevent infinite loops
            $replaceStr = '';
    }

    //Repalce the matched {} string witht he replacement defined
    $str = str_replace($matchStr, $replaceStr, $str);
    //Call function recursively until all {} matches are replaces
    return replaceText($str);
}

$str_1 = '{-type:button|info:item|text:Read more about item-}';
$str_2 = '{-type:link|target:blank|link:www.google.com|secure:no|text:Read more about item-}';
$str = $str_1.$str_2;

echo replaceText($str);

 

Output:

<input type="button" class="button" href="popup.php?r=item" value="Read more about item" />
<a class="button" href="http://www.google.com" target="blank">Read more about item</a>

[jobbe]

Thanks mjdamato - Works