php remove words from a string : <p>Suppose i have the following strin</p>

<pre><code>assigned order 1234
</code></pre>

<p>I would like to remove the words</p>

<pre><code>assigned order
</code></pre>

<p>So my final output should be </p>

<pre><code>1234
</code></pre>

<p>How do i go about this in php</p>

<p>SO something like</p>

<pre><code>$string = "assigned order 1234";
</code></pre>

<p>$newstring = //stuck here</p>

<p>NOte that the value 1234 can also be 767as33 BUT THE PART assigned order always remains constant</p>
