title: (PHP) Select Three random number without duplicate value
body: <p>I have to get three random number from 1 to 3 without duplicate value in results
  With: 
  <br>$total = '3';
  <br>$rand1 = rand(1,$total);<br>
  $rand2 = rand(1,$total);<br>
  $rand3 = rand(1,$total);<br>
  And results for ex: 1.2.3 or 3.2.1, or 2.1.3<br>
  Please help me, thanks in advance</p>