how I can correct posted html to a html that is safe ?

[alexmadsen]

HI ,

whenever my site users posted a text(html base without strip tags) , if html post contain a closed tags and incomplete tags ; mixed my site main html .
example :
posted :

&nbsp;11111</TR><TR>
<DIV id=postbody>
<P>&nbsp;</P>
<P>2222<BR>3333 </TR><TR><IMG src="http://www.blogsky.com/editor/images/smiles/05.gif">&nbsp;<BR>44444<BR>- <IMG src="http://www.blogsky.com/editor/images/smiles/04.gif">&nbsp;<IMG src="http://www.blogsky.com/editor/images/smiles/04.gif"><BR>-55555<BR>- 666666666666666666<IMG src="http://www.blogsky.com/editor/images/smiles/20.gif">&nbs;pgsdg<BR>- 77777777777<IMG src="http://www.blogsky.com/editor/images/smiles/26.gif">&nbsp; ... sdgsdsdg <IMG src="http://www.blogsky.com/editor/images/smiles/22.gif"><BR>- 88888888888888 <IMG src="http://www.blogsky.com/editor/images/smiles/14.gif"></P></DIV>

********
corrected with gmail editor :

&nbsp;11111<table><tr>
<td><div>
<p>&nbsp;</p>
<p>2222<br>3333 </p></div></td></tr><tr><td><img>&nbsp;<br>44444<br>- <img>&nbsp;<img>
<br>-55555<br>- 666666666666666666<img>&amp;nbs;pgsdg<br>- 77777777777<img>&nbsp; ... sdgsdsdg <img>

<br>- 88888888888888 <img></td></tr></table>

</div>
************************************
how I can correct posted html to a html that is safe to my main html similar gmail? with php or javascript ?
please help me ?

[webren]

Are you talking about making your own HTML parser?

[alexmadsen]

[quote author=webren link=topic=123340.msg509659#msg509659 date=1169367136]
Are you talking about making your own HTML parser?
[/quote]

I apologize that I cant speak english very well .
I want build a html that is contain my html code and users posted html .
whenever users post a text(html base without strip tags) , if html post contain a closed tags and incomplete tags ; mixed my site main html .
how I can correct posted html to a html that is safe to my main html similar gmail? with php or javascript ?
please help me ?