title: Include an array in another array
body: <p>Was wondering how to add the values of one array into another to save me typing the values of one array over and over:</p>
  
  <pre><code>$array_main = array(
      '[1]' =&gt; '1',
      '[2]' =&gt; '2',
      '[3]' =&gt; '3',
      '[4]' =&gt; '4'
  );
  
  $array_1 = array( $array_main, '[5]' =&gt; '5' );
  </code></pre>
  
  <p>This deduces:</p>
  
  <pre><code>$array_1 = array(
      array(
          '[1]' =&gt; '1',
          '[2]' =&gt; '2',
          '[3]' =&gt; '3',
          '[4]' =&gt; '4'
      ),
      '[5]' =&gt; '5'
  );
  </code></pre>
  
  <p>But I wanted:</p>
  
  <pre><code>$array_1 = array(
      '[1]' =&gt; '1',
      '[2]' =&gt; '2',
      '[3]' =&gt; '3',
      '[4]' =&gt; '4',
      '[5]' =&gt; '5'
  );
  </code></pre>
  
  <p>So is there anything that can turn an array into a string? I've tried <code>implode</code> and <code>array_shift</code> but I need the whole <code>array()</code> not just the values..</p>