PHP删除数组中的重复项

Question

我试图从数组中删除重复项.如下所示,代码中的结果列表包含两个Sugar和Coffee事件.如何有效地从列表中删除重复项？(这个代码实际上要长得多,并且包含400多个元素).

<?php    
     $FoodList = array();
     $zb = Milk
     $cd = Bread
     $dc = Orange
     $ce = Apple
     $ec = KiwiFruit
     $cg = GrapeFruit
     $gc = Cucumber
     $ch = Biscuit
     $hc = Caramel
     $dv = Juice
     $ci = SoftDrink
     $ic = Banana
     $cj = Tea
     $cl = Sugar
     $jc = Coffee 
     $ck = Yoghurt
     $kc = Pizza Base
     $lc = Tuna

     if ($_POST['Dairy'] == 'Yes') { //Radio check box
         array_push($FoodList, $zb, $cd, $dc, $ce, $ec);
     }
     if ($_POST['GlutenFree'] == 'Yes') {
         array_push($FoodList, $cg, $gc, $ch, $hc, $dv);
     }
     if ($_POST['Fruit'] == 'Yes') {
         array_push($FoodList, $ci, $ic, $cj, $jc, $cl);
     }
     if ($_POST['Sweets'] == 'Yes') {
         array_push($FoodList, $jc, $ck, $kc, $cl, $lc);    
     }
     foreach ( $FoodList as $key => $value ) {
         echo "<li>" . $value . "</li>";
     }
     echo "</ul>";
}
?>

非常感谢

Answer 1

使用array_unique函数从数组中删除重复值.