title: Get MIN value from array without 0
body: <p>
  
  <pre><code>$array1 = array(0,1,3,0);
  $array2 = array(2,0,3,2);
  $array3 = array(0,4,5,1);
  
  echo min($array1) . "\n";
  echo min($array2) . "\n";
  echo min($array3) . "\n";
  </code></pre>
  
  <p>this return me:</p>
  
  <pre><code>0
  0
  0
  </code></pre>
  
  <p>but i want receive:</p>
  
  <pre><code>1
  2
  1
  </code></pre>
  
  <p>How to skip 0 in function MIN?</p>