How to write a regexp condition?

Question

Regular Expressions

$content = " +  +  +  +  + ";
$pattern = ____ тут regexp ____;
if (preg_match($pattern, $content, $matches) > 0) {
   echo $matches[0];
}

And I should get everything except what starts with [[- or [[!-, but as a result you don't need to get "!"

$param_1
$param_2
*param_3
*param4_

Help good people

Answer 1

/\[\[\!?(?!\-).(\w+)\]\]/