Swap html tags before php Insert

Question

I am creating a function so that HTML tags are changed when doing Insert, and then when retrieving.

I’m doing it properly?

CLASS

class handle
{
  public static function removeTag($target)
  {
    $output = preg_replace("#{~#", "<", $target);
    $output = preg_replace("#~}#", ">", $target);
    $output = preg_replace("#{{q}}#", '"', $target);
    return $output;
 }

  public static function colocaTag($target)
  {
    $output = preg_replace("<", "#{~#", $target);
    $output = preg_replace(">", "#~}#", $target);
    $output = preg_replace('"', "#{{q}}#", $target);
    return $output;
 }
}

When sending to the database:

$comTag = '<p class="important-text">Meu texto com tag </p>';
handle::removeTag($comTag);

Would arrive so in sql

{~p class={{q}}Important-text{{q}}~}My text without tag {~/p~}

Recovering in echo:

$SemTag = '{~p class={{q}}important-text{{q}}~}Meu texto sem tag {~/p~}';
echo handle::colocaTag($SemTag );

<p class="important-text">Meu texto com tag </p>

I’m on the right track?