# `iterable` New in version 1.7: The iterable test was added in Twig 1.7. `iterable` checks if a variable is an array or a traversable object: <table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre>1 2 3 4 5 6 7 8 9</pre></div></td><td class="code"><div class="highlight"><pre>{# evaluates to true if the foo variable is iterable #} {% if users is iterable %} {% for user in users %} Hello {{ user }}! {% endfor %} {% else %} {# users is probably a string #} Hello {{ users }}! {% endif %} </pre></div></td></tr></table>