How to draw mathematic pattern in php?
<p>I want to draw a pattern like this.</p>

<pre><code>1
2 3
3 5 8
5 8 13 21
8 13 21 34 55
</code></pre>

<p>Can somebody help me?
like in php code for this pattern is</p>

<pre><code>1
12
123
1234
12345
</code></pre>

<p>is</p>

<pre><code>&lt;?php
    for($i=1;$i&lt;=5;$i++) {
        for($j=1;$j&lt;=$i;$j++) {
            echo $j;
        }
        echo "&lt;/br&gt;";
    }
?&gt;
</code></pre>
