PHP Two-dimensional arrays are based on an element to

This article mainly introduces the PHP two-dimensional array according to an element to the weight, has a certain reference value, now share to everyone, the need for friends can refer to

function Array_unset ($arr, $key) {             //Create a target array          $res = Array ();                foreach ($arr as $value) {                      //See if there                          are duplicates if (Isset ($res [$value [$key]]) {                   //have: Destroy                                     unset ($value [$key]);                                }             else{                                    $res [$value [$key]] = $value;             }            }          return $res;      }  $arr = Array (                            ' title ' = '              1111 ', ' date ' = ' ddddd '                                ),              Array (' title ' = ' 22222 ', ' Date ' = ' fffffff '),              Array (' title ' = ' 1111 ', ' date ' = ' ggggggg ')  );  $NEWARR = Array_unset_tt ($arr, ' title ');  Echo ' <pre> ';    Print_r (Array_values ($NEWARR));