title: Array Push a Multi Dimentional Array
body: <p>trying to add the array below into an existing one with <strong>array_push</strong>:</p>
  
  <pre><code>'tax_query' =&gt; array(
          'relation' =&gt; 'and',
          array(
              'taxonomy' =&gt; 'type',
              'field' =&gt; 'slug',
              'terms' =&gt; 'national'
              )
      )
  </code></pre>
  
  <p>the existing array:</p>
  
  <pre><code>$args = array(
          'post_type' =&gt; 'events',       
          'meta_query' =&gt; array(
              'relation' =&gt; 'AND',
              array(
                  'key' =&gt; 'events_start-date',
                  'value' =&gt; date('YYYY-mm-dd'),
                  'type' =&gt; 'CHAR',
                  'compare' =&gt; '&gt;='
              )
          )
  );
  </code></pre>
  
  <p>i have tried this code with no luck:</p>
  
  <pre><code>array_push(
  $args, array('tax_query'=&gt; array('relation' =&gt; 'and', 
  array('taxonomy' =&gt; 'prince-range','field' =&gt; 'slug','terms' =&gt; '99')
  )));
  </code></pre>