php - Use function but run it again if it has the same result as function before -

so i've made function random colour. problem im gonna print same function 8 times , dont want 2 of prints return same variable. want run function again if has printed colour before.

function random_color(){ $color_numb = "8";  $color = rand(1, $color_numb);  if($color == "1"){   $type = "blue"; } if($color == "2"){   $type = "red"; } if($color == "3"){   $type = "orange"; } if($color == "4"){   $type = "green"; } if($color == "5"){   $type = "yellow"; } if($color == "6"){   $type = "black"; } if($color == "7"){   $type = "purple"; } if($color == "8"){   $type = "white"; } return $type;  } print random_color(); print random_color(); print random_color(); print random_color(); print random_color(); print random_color(); print random_color(); print random_color(); 

so idea how can manage this?

instead of random_color() function , 8 prints, try :

$colors = array(); $colors[] = "blue"; $colors[] = "red"; $colors[] = "orange"; $colors[]= "green"; $colors[]= "yellow"; $colors[] = "black"; $colors[]= "purple"; $colors[]= "white"; shuffle($colors); ($i = 0; $i < 8; $i++) {    echo $colors[$i] }