<div>
use preg_replace instead of str_replace for that:<br />
<br />
echo preg_replace('/\&lt;\/div\&gt;(\<wbr />s*)\/m', '\1', $myhtml);
</div>


<div>
OK, the replacement of \n with &quot;&quot;&nbsp;takes care of the line breaks, but in my html output after removing the \n there are still whitespace between the &nbsp;and the &nbsp;, so the subsequent str_replace and the preg_replace prposed by hernst42 still does not match/replace.<br />
<br />

</div>


<div>
Thanks to both, althought hernst42's answer solved this problem directly, the suggestion from hielo will come in handy later on in my script, so he answered a future question with that comment already! ;)
</div>


<div>
try this:<br />

<pre><code class="code-10 nolinks" id="code-121140"><span>&lt;?php</span>
<span>$myhtml = '</span>
<span>&lt;html&gt;</span>
<span>&lt;head&gt;</span>
<span>&lt;body&gt;</span>
<span>&lt;div class=&quot;1&quot;&gt;</span>
<span>        &lt;div clas=&quot;2&quot;&gt;sad sasads adsadasd</span>
<span>        &lt;/div&gt;</span>
<span>&lt;/div&gt;</span>
<span> </span>
<span>&lt;div class=&quot;1&quot;&gt;</span>
<span>        &lt;div clas=&quot;2&quot;&gt;sads asad sadsadasd</span>
<span>        &lt;/div&gt;</span>
<span>&lt;/div&gt;</span>
<span> </span>
<span>&lt;div class=&quot;1&quot;&gt;</span>
<span>        &lt;div clas=&quot;2&quot;&gt;sad sasa dsadsadasd</span>
<span>        &lt;/div&gt;</span>
<span>&lt;/div&gt;</span>
<span> </span>
<span>&lt;/body&gt;</span>
<span>&lt;/html&gt;</span>
<span>';</span>
<span>$myhtml =  preg_replace('/\s\s+/U','',str_replace(&quot;\n&quot;,'',$myhtml));</span>
<span>echo $myhtml;</span>
<span>?&gt;</span>
</code></pre>
</div>


<div>
<div class="content wysiwyg-content">
Hi<br />
<br />
can someone please tell me how I can search and replace HTML if the &quot;search&quot; part has whitespace in?<br />
<br />
For instance:<br />
$myhtml = '<br />
&lt;html&gt;<br />
&lt;head&gt;<br />
&lt;body&gt;<br />
&lt;div class=&quot;1&quot;&gt;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &lt;div clas=&quot;2&quot;&gt;sadsasadsadsadasd<wbr /><br />
&nbsp; &nbsp; &nbsp; &nbsp; &lt;/div&gt;<br />
&lt;/div&gt;<br />
<br />
&lt;div class=&quot;1&quot;&gt;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &lt;div clas=&quot;2&quot;&gt;sadsasadsadsadasd<wbr /><br />
&nbsp; &nbsp; &nbsp; &nbsp; &lt;/div&gt;<br />
&lt;/div&gt;<br />
<br />
&lt;div class=&quot;1&quot;&gt;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &lt;div clas=&quot;2&quot;&gt;sadsasadsadsadasd<wbr /><br />
&nbsp; &nbsp; &nbsp; &nbsp; &lt;/div&gt;<br />
&lt;/div&gt;<br />
<br />
&lt;/body&gt;<br />
&lt;/html&gt;<br />
';<br />
<br />
<br />
Now I want to replace the <br />
<br />
&lt;/div&gt;<br />
<br />
&lt;div class=&quot;1&quot;&gt;<br />
<br />
with &quot;&lt;/XXX&gt;&lt;XXX&gt;&quot; so that my HTML can be passed to an XML function, but the whitespace is not playing along with str_replace...
</div>
</div>


Hi

can someone please tell me how I can search and replace HTML if the "search" part has whitespace in?

For instance:
$myhtml = '
<html>
<head>
<body>
<div class="1">
        <div clas="2">sadsasadsadsadasd
        </div>
</div>

<div class="1">
        <div clas="2">sadsasadsadsadasd
        </div>
</div>

<div class="1">
        <div clas="2">sadsasadsadsadasd
        </div>
</div>

</body>
</html>
';


Now I want to replace the 

</div>

<div class="1">

with "</XXX><XXX>" so that my HTML can be passed to an XML function, but the whitespace is not playing along with str_replace...

str_replace and whitespace

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