I often find myself using tal:repeat to implode an array
in php
$myarr = array('one', 'two', 'three');
is easily converted to
one, two, three
with
implode(', ',$myarr);
But in PHPTal, this is quite cumbersome
<span tal:repeat="val myarr">
${val}<span tal:condition="not:repeat/val/end">, </span>
</span>
Isn't there an easier solution?