Question

I’m using this with success

$str = "{source}do_something";
if(substr($str, 0, 8) == "{source}")

but what should I do if I’ve

$str = "<br><br>{source}do_something";

the goal is to be able of adding blank lines (as many as needed) before firing up my do_something

Thanks

EDIT

ok, so I need to run the function

menu;vertical,true

but I also need to have those blank lines before my menu

my string is

<br><br><br><div>{source}_menu_;vertical,true{/source}</div>

with no line breaks I use

if(substr($pos, 0, 8) == "{source}") {
    $campos = substr_replace($description, '', 0, 8);
    $campos = substr($campos, 0, -9);
    $funcao = explode(";", $campos);
    call_user_func_array($funcao[0], array($funcao[1]));
}

now I need the same thing but with the line breaks, so the browser actually renders line breaks and then runs the function.

I hope my english is good enough to make this clear…

Thanks

NEW EDIT with solution

$startTag = "{source}";
$endTag = "{/source}";
$initial_strpos = strpos($str, $startTag);
$final_strpos = strpos($str, $endTag);
if ($initial_strpos !== false) {
    $beforeTag = substr($str, 0, $initial_strpos);
    echo htmlspecialchars_decode($beforeTag, ENT_QUOTES);
    $start = $initial_strpos + strlen($startTag);
    $innerText = substr($str, $start, strpos($str, $endTag)-$start);
    $funcao = explode(";", $innerText);
    call_user_func_array(array_shift($funcao), $funcao);
    $aferTag = strpos($str, $final_strpos);
    echo htmlspecialchars_decode($aferTag, ENT_QUOTES);
}

this will print my line breaks and run my function.

Answer 1

If you have to check the first 8 characters specifically, then you should remove the <br>s from the string before doing the substring:

if (substr(str_replace("<br>", "", $str), 0, 8) == "{source}")

This won’t work if the string is slightly different, i.e. <br />. The best way to do this would probably be:

if (strpos($str, "{source}") !== false)

EDIT

How about this? It should get the text between the {source}{/source} tags and split them by ;, then take the first entry as the function name and the second as parameters to the function.

$startTag = "{source}";
$endTag = "{/source}";
$strpos = strpos($str, $startTag);
if ($strpos !== false)
{
    $start = $strpos + strlen($startTag);
    $innerText = substr($str, $start, strpos($str, $endTag)-$start);
    list($functionName, $parameters) = explode(";", $innerText);
    call_user_func_array($functionName, explode(",", $parameters));
}