Question

I’m trying to simulate a bbcode tag, like code below:

[code]this is code to render[/code]
[code attributeA=arg]this is code to render[/code]
[code attribute C=arg anotherAtributte=anotherArg]this is code to render[/code]

As you can see, the code tag can take as many attributes as needed, also could exists too many code tags in the same “publishment”. I only have dealed with easiest tags like img, b, a, i. For example:

$result = preg_replace('#\[link\=(.+)\](.+)\[\/link\]#iUs', '<a href="$1">$2</a>', $publishment);

That works fine since it returns the final markup. But, in the code tag I need to have the “attributes” and “values” in array in order to build the markup myselft according to these attributes in order to simulate someting like this:

$code_tag = someFunction("[code ??=?? ...] content [/code]", $array );

//build the markup myself
$attribute1 = array_contains("attribute1", $array)? $array["attribute1"] : "";
echo '<pre {$attribute1}>' . $array['content'] . </pre> 

So, I don’t expect that you do it entirely for me, I need you just help to take me to the right direction because I never have used regex.

Thank you in advance

Answer 1

I like to use preg_replace_callback for such things:

function codecb($matches)
{
    $original=$matches[0];
    $parameters=$matches[1];
    $content=$matches[2];
    return "<pre>". $content ."</pre>";
}

preg_replace_callback("#\[code(.*)\](.+)\[\/code\]#iUs", "codecb", $str);

so when you have [code argA=test argB=test]This is content[/code] then in the function “codecb” you will have:

$original = "[code argA=test argB=test]This is content[/code]"
$parameters = " argA=test argB=test"
$content = "This is content"

and can preg_match the arguments and return the replacement for the whole.