PHP realizes the method of deleting the same elements and duplicate values ​​in the array in the two-dimensional array

This article mainly introduces the method of PHP to delete the same elements in the two-dimensional array and the duplicate values ​​​​of the array, involving PHP's array traversal, judgment, comparison and other related operation skills. Friends in need can refer to it

The example in this article describes the method of PHP to delete the same elements and duplicate values ​​in the array in a two-dimensional array. Share it with everyone for your reference, the details are as follows:

function assoc_title($arr, $key)
{
  $tmp_arr = array();
  foreach ($arr as $k => $v) {
    if (in_array($v[$key], $tmp_arr)) {
      unset($arr[$k]);
    } else {
      $tmp_arr[] = $v[$key];
    }
  }
  return $arr;
}//assoc_title end
$key_title = 'stu_name';
$quchong = assoc_title($teachers, $key_title);
echo "<table border=\"1\" bordercolor=\"#CCCCCC\" cellpadding=\"0\" cellspacing=\"0\" style=\"border-collapse:collapse\" width=\"20%\">";
echo "<tr><td>id</td><td>学生名</td><td>电话</td></tr>";
$i = 1;
foreach ($quchong as $key => $vale) {
  if ($vale[&#39;stu_name&#39;] == "游开琳" or $vale[&#39;stu_name&#39;] == "韩建通") {
    continue;
  }
  echo "<tr><td>{$i}</td><td>{$vale[&#39;stu_name&#39;]}</td><td>{$vale[&#39;tel&#39;]}</td></tr>";
  $i++;
}
echo "</table>";

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