PHP String and Numeric Sum
<p>I have a string <strong>00030000</strong> and need to increment this with loop.</p>

<pre><code>$start = "00030000";

for ($i = 1; $i &lt; 10; $i++) {
    echo $i + $start;
}
</code></pre>

<p>It prints this...</p>

<ul>
<li>30001 </li>
<li>30002 </li>
<li>30003 </li>
<li>30004 </li>
<li>...</li>
</ul>

<p>This is understood but how can I get following result?</p>

<ul>
<li>00030001 </li>
<li>00030002 </li>
<li>00030003 </li>
<li>00030004 </li>
<li>...</li>
</ul>
