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Unless you show us a sample of the body you want to extract information from we can't really help.<br />
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From your question though, I'd consider using XML functions. You might have to run your document through tidy first though to make it XHTML(and therefore XML) Compliant. You can install tidy as a PHP/PECL Extension ( <a href="http://pecl.php.net/package/tidy" rel="ugc">http://pecl.php.net/package/tidy</a>&nbsp;). <br />
<br />
Then use XML Functions to get what you want.
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Unless you show us a sample of the body you want to extract information from we can't really help.

From your question though, I'd consider using XML functions. You might have to run your document through tidy first though to make it XHTML(and therefore XML) Compliant. You can install tidy as a PHP/PECL Extension ( http://pecl.php.net/package/tidy [http://pecl.php.net/package/tidy] ).

Then use XML Functions to get what you want.

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There is PHP classes that transform HTML to XML?
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There is PHP classes that transform HTML to XML?

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Hi Experts!<br />
<br />
I'd like create a PHP script that extract relevant information from WebPage and i need your help.<br />
<br />
The script captures the html code od various similar page from a site (for example all articles page). I define which parts of body (i.e. title of articles) may be extract and i'd like create an algorithm that define, automatically, regular expression for that parts.<br />
<br />
I need your suggestions.
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Hi Experts!

I'd like create a PHP script that extract relevant information from WebPage and i need your help.

The script captures the html code od various similar page from a site (for example all articles page). I define which parts of body (i.e. title of articles) may be extract and i'd like create an algorithm that define, automatically, regular expression for that parts.

I need your suggestions.

An Intelligent Script

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.