Analyze HTML and save the result to an array. Let's take a look at the annotations. :)

Introduction: This is to analyze HTML and save the result to an array. Let's take a look at the annotations. :) On the details page, we will introduce PHP, related knowledge, skills, experience, and some PHP source code.

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<? PHP

/*

* Parsehtml. php

* Author: Carlos Costa jordao

* Email: carlosjordao@yahoo.com
*

* My notation of variables:

* I _ = integer, EX: I _count

* A _ = array, a_html

* B _ = Boolean,

* S _ = string

*

* What it does:

*-Parses a HTML string and get the tags

*-Exceptions: HTML tags like <br> <HR> </a>, etc

*-At the end, the array will look like this:

* ["IMG"] [0] ["src"] = "XXX"

* ["IMG"] [1] ["src"] = "XXX"

* ["IMG"] [1] ["Alt"] = "XXX"

* ["A"] [0] ["href"] = "XXX"

*

*/

Function parsehtml ($ s_str)

{

$ I _indicatorl = 0;

$ I _indicatorr = 0;

$ S_tagoption = "";

$ I _arraycounter = 0;

$ A_html = array ();

// Search for a tag in string

While (is_int ($ I _indicatorl = strpos ($ s_str, "<", $ I _indicatorr )))){

// Get everything into tag...

$ I _indicatorl ++;

$ I _indicatorr = strpos ($ s_str, ">", $ I _indicatorl );

$ S_temp = substr ($ s_str, $ I _indicatorl, ($ I _indicatorr-$ I _indicatorl ));

$ A_tag = explode ('', $ s_temp );

// Here we get the tag's name

List (, $ s_tagname,) = each ($ a_tag );

$ S_tagname = strtoupper ($ s_tagname );

// Well, I am not interesting in <br>, </font> or anything else like that...

// So, this is false for tags without options.

$ B _booloptions = is_array ($ s_tagoption = each ($ a_tag) & $ s_tagoption [1];

If ($ B _booloptions ){

// Without this, We will mess up the Array

$ I _arraycounter = (INT) count ($ a_html [$ s_tagname]);

// Get the tag options, like src = "htt: //". Here, s_tagtokoption is 'src'

And s_tagtokvalue is '"http ://"'

Do {

$ S_tagtokoption = strtoupper (strtok ($ s_tagoption [1], "= "));

$ S_tagtokvalue = trim (strtok ("= "));

$ A_html [$ s_tagname] [$ I _arraycounter] [$ s_tagtokoption] =

$ S_tagtokvalue;

$ B _booloptions = is_array ($ s_tagoption = each ($ a_tag )))&&

$ S_tagoption [1];

} While ($ B _booloptions );

}

}

Return $ a_html;

}

?>

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