Get Part of the String if with conditional prefix [+ and suffix +]

Question

How can I get part of the string with conditional prefix [+ and suffix +], and then return all of it in an array?

example:

$string = 'Lorem [+text+] Color Amet, [+me+] The magic who [+do+] this template';

// function to get require
function getStack ($string, $prefix='[+', $suffix='+]') {
    // how to get get result like this?
    $result = array('text', 'me', 'do'); // get all the string inside [+ +]

    return $result;
}

many thanks...

Answer 1

You can use preg_match_all as:

function getStack ($string, $prefix='[+', $suffix='+]') {
        $prefix = preg_quote($prefix);
        $suffix = preg_quote($suffix);
        if(preg_match_all("!$prefix(.*?)$suffix!",$string,$matches)) {
                return $matches[1];
        }
        return array();
}

Code In Action

Answer 2

Here’s a solution with strtok:

function getStack ($string, $prefix='[+', $suffix='+]') {
    $matches = array();
    strtok($string, $prefix);
    while (($token = strtok($suffix)) !== false) {
        $matches[] = $token;
        strtok($prefix);
    }
    return $matches;
}