List Posts in a selected category on sidebar

The code for above is included below:

[<?php
$categories = get_the_category();
echo ‘

• ‘;
  foreach ($categories as $c) {
  if (strpos(get_permalink($post->ID), $c->slug) !== false) {
  echo ‘<h2><u>slug . ‘/”>’ . $c->name . ‘</u></h2>’;
  $current_cat = $c->cat_ID;
  }
  }
  $posts = get_posts(array(‘cat’ => $current_cat));
  if (!empty($posts)) {
  echo ‘

‘;
foreach ($posts as $p) {
echo ‘
• ID) . ‘”>’ . $p->post_title . ‘

‘;
}
echo ‘

‘;
}
echo ‘

‘;
?>]

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