Codacy error : "All output should be run through an escaping function" in PHP project

Question

I'm developing a small blog for school project using PHP. My school wants me to use Codacy to check my code quality. It gives me some error that I can't resolve.. I am doing this :

<div class="error-code">
      <div class="err"><?= $error[0] ?></div>
      <i class="far fa-question-circle fa-spin"></i>
      <div class="err2"><?= $error[2] ?></div>
</div>

Codacy gave me this error : "All output should be run through an escaping function" about this code <?= $error[O] ?>. So I made a function on my View class :

public function clean($string)
{
   return htmlentities($string);
}

And I call it like this :

<div class="error-code">
      <div class="err">
            <?= $this->clean($error[0]); ?>
      </div>
      <i class="far fa-question-circle fa-spin"></i>
      <div class="err2">
            <?= $this->clean($error[2]); ?>
      </div>
</div>

$this is my View class.

The display is still good but Codacy still gives me the same error on the same line of code...

Answer 1

等待大神解答