How could i compine two array based on the index.
<p>so what i have is three (or more) array with different sizes something like the following :</p>

<pre><code>a ['x1' , 'x2', 'x3'];
b ['y1','y2']
c ['z1']
</code></pre>

<p>i want to create a string like the following :</p>

<pre><code>x1,y1,z1 - x2,y2 - x3 
</code></pre>

<p>any idea how the logic behind doing something like this?</p>
