PHP Schedule Comparing script Solution
<p>I´m writing a script in php which compares an old and a new schedule and then outputs if classes are "Dropped".</p>

<p>in the following image example you can see the schedules:
<a href="http://i.stack.imgur.com/SHLxN.jpg" rel="nofollow">IMAGE EXAMPLE</a></p>

<p>I didn't develope the schedules so I have to save them in HTML
in order to compare them.</p>

<p>I tried working with text diff, but I didn't come to a good result</p>

<p>in which direction should i look for a solution ? </p>

<p><strong>P*<em>S: I asked it on some other forums but because it is a difficult question
I didn't get many answers. If you don't want to answer, please 
send me in the good direction or tell me where somebody CAN answer it.</em>*</strong></p>

<p><em><strong>Thanks in advance</em></strong> </p>

<p>example code: -</p>

<pre><code>&lt;code&gt; 
      &lt;tr class="AccentDark"&gt;
       &lt;td align="left" width="65" class="tableHeader"&gt;&lt;/td&gt;
        &lt;td align="center" width="auto" class="tableHeader"&gt;Maandag&lt;/td&gt;
    &lt;td align="center" width="auto" class="tableHeader"&gt;Dinsdag&lt;/td&gt;
   &lt;td align="center" width="auto" class="tableHeader"&gt;Woensdag&lt;/td&gt;
     &lt;td align="center" width="auto" class="tableHeader"&gt;Donderdag&lt;/td&gt;
     &lt;td align="center" width="auto" class="tableHeader"&gt;Vrijdag&lt;/td&gt;
   &lt;/tr&gt;&lt;tr&gt;
  &lt;td align="left" width="50" class="tableHeader"&gt;1e uur&lt;/td&gt;
 &lt;td align="left" width="auto" class="tableCell"&gt;&lt;table border="0" cellpadding="0"               cellspacing="0" &gt;
  &lt;tr&gt;
    &lt;td align="left" width="32" class="tableCell"&gt;&lt;/td&gt;
   &lt;td align="left" width="3" class="tableCell"&gt;&amp;nbsp&lt;/td&gt;
     &lt;td align="left" width="75" class="tableCell"&gt;&lt;/td&gt;
     &lt;td align="left" width="3" class="tableCell"&gt;&amp;nbsp&lt;/td&gt;
     &lt;td align="left" width="73" class="tableCell"&gt;&lt;/td&gt;
     &lt;td align="left" width="9" class="tableCell"&gt;&lt;/td&gt;
    &lt;/tr&gt;
    &lt;/table&gt;
    &lt;/td&gt;
     &lt;td align="left" width="auto" class="tableCell"&gt;&lt;table border="0" cellpadding="0"         cellspacing="0" &gt;
    &lt;tr&gt;
     &lt;td align="left" width="32" class="tableCell"&gt;WAS&lt;/td&gt;
     &lt;td align="left" width="3" class="tableCell"&gt;&amp;nbsp&lt;/td&gt;
     &lt;td align="left" width="75" class="tableCell"&gt;HE09&lt;/td&gt;
     &lt;td align="left" width="3" class="tableCell"&gt;&amp;nbsp&lt;/td&gt;
     &lt;td align="left" width="73" class="tableCell"&gt;econ&lt;/td&gt;
     &lt;td align="left" width="9" class="tableCell"&gt;5&lt;/td&gt;
    &lt;/tr&gt;
    &lt;/table&gt;
    &lt;/td&gt;
     &lt;td align="left" width="auto" class="tableCell"&gt;&lt;table border="0" cellpadding="0"         cellspacing="0" &gt;
    &lt;tr&gt;
     &lt;td align="left" width="32" class="tableCellHidden"&gt;WIK&lt;/td&gt;
     &lt;td align="left" width="3" class="tableCellHidden"&gt;&amp;nbsp&lt;/td&gt;
     &lt;td align="left" width="75" class="tableCellHidden"&gt;HC17&lt;/td&gt;
     &lt;td align="left" width="3" class="tableCellHidden"&gt;&amp;nbsp&lt;/td&gt;
     &lt;td align="left" width="73" class="tableCellHidden"&gt;biol&lt;/td&gt;
     &lt;td align="left" width="9" class="tableCellHidden"&gt;4&lt;/td&gt;
    &lt;/tr&gt;
    &lt;/table&gt;
    &lt;/td&gt;

    &lt;/code&gt;
</code></pre>
