title: Getting unique values from 2 arrays
body: <p>I have 2 arrays that I'm trying to get the unique values only from them. So I'm not just trying to remove duplicates, I'm actually trying to remove both duplicates.</p>
  
  <p>So if I'm getting the 2 arrays like this:</p>
  
  <pre><code>$array1 = array();
  $array2 = array();
  
  foreach($values1 as $value1){ //output: $array1 = 10, 15, 20, 25;
      $array1[] = $value1;
  }   
  
  foreach($values2 as $value2){ //output: $array2 = 10, 15, 100, 150;
      $array2[] = $value2;
  }
  </code></pre>
  
  <p>The final output I'm looking for is </p>
  
  <pre><code>$output = 20, 25, 100, 150;
  </code></pre>
  
  <p>Any neat way to getting this done?</p>