PHP Remove duplicates in an array

Question

I am trying to remove duplicates from an array. As you can see below, the resulting list from the code contains two incidents of Sugar and Coffee. What can I do to effectively remove the duplicates from the list? (The code for this is actually much longer, and includes over 400 elements).

<?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>";
}
?>

Thankyou so much

swapnesh · Accepted Answer · 2013-09-11 05:24:51Z

5

Use array_unique function to remove duplicate values from an array.

answered Sep 11, 2013 at 5:24

swapnesh

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Comments

Rohan Kumar · Accepted Answer · 2013-09-11 05:28:00Z

3

Try this,

$FoodList=array_unique($FoodList);
if(!empty($FoodList))
{
    $str="<ul>";
    foreach ($FoodList as $key => $value)
    {
       $str.="<li>" . $value . "</li>";
    }
    $str.= "</ul>";
    echo $str;
}

answered Sep 11, 2013 at 5:28

Rohan Kumar

40.7k11 gold badges81 silver badges111 bronze badges

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