javascript-php Crawl page How to handle can only keep the DOM structure, remove CSS and JS?

Once the regular rule has been written, the page will be corrected once it has changed.
Is there a better way to extract the DOM of the page first?

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Once the regular rule has been written, the page will be corrected once it has changed.
Is there a better way to extract the DOM of the page first?

I think what you need is a PHP DOM module ... Install by default Don't worry ...

Because I don't know what your actual application scenario is ... Let's write you a simple example ...

!--? php/* I heard that you need DOM ... */$doc = new DOMDocument ();/* I wrote a si Mple page ... change it to a curl result ... */$doc--->loadhtml (<< 
   
    Sunyanzi ' s test</t itle> 
   
Hello
 World Hey welcomehtml_section);/* Now we should try to get something ... */$h 1Elements = $doc-&G T;getelementsbytagname (' H1 ');/* This line prints "Hello World" ... */foreach ($h 1Elements as $h 1Node) echo $h 1node- >nodevalue, php_eol;/* and this line prints "http://segmentfault.com/" ... */echo $doc->getelementbyid (' Onlylink ' ->getattribute (' href '), php_eol;/* now I'll introduce something advanced ... using XPath ... */$xpath = new Domxpa Th ($doc);/* Also prints "http://segmentfault.com/" ... locate via H1 ... */echo $xpath->evaluate (' String (//h1[tex
 T () = "Hello World"]/following-sibling::a/@href), Php_eol; 
   

Basically... Wait until you have mastered the XPath ... You'll find DOM is much more flexible than regular ...

PHP's ability to process XML is far beyond your imagination ... Reading a manual is not a bad thing.

You're right about that. I'm going to use XPath now.

