Analysis on php plug-in HTMLPurifierHTML parser _ PHP Tutorial

Analyze the HTMLPurifierHTML parser of the php plug-in. The use of the HTMLPurifier plug-in download the HTMLPurifier plug-in HTMLPurifier the useful part is that the library uses the HTMLPurifierlibrary class library the first way to copy the code is as follows :? Use of phpre HTMLPurifier plug-in
Download the HTMLPurifier plug-in
The useful part of the HTMLPurifier plug-in is library.

Use HTMLPurifier library class library
Method 1

The code is as follows:

Require_once 'htmlpurifier. auto. php ';
$ Config = HTMLPurifier_Config: createDefault ();
?>

Or

The code is as follows:

Require_once 'htmlpurifier. includes. php ';
Require_once 'htmlpurifier. autoload. php ';
$ Config = HTMLPurifier_Config: createDefault ();
?>

The example provided on the official website is

The code is as follows:

Require_once 'htmlpurifier. auto. php ';

My colleagues often use

The code is as follows:

Require_once 'htmlpurifier. includes. php ';
Require_once 'htmlpurifier. autoload. php ';

Set $ config
Configdoc
Http://htmlpurifier.org/live/configdoc/plain.html
Example

The code is as follows:

$ Config-> set ('HTML. allowedElements ', array ('P' => true, 'table' => true, 'tr' => true, 'TD' => true, 'Br '=> true ));
$ Config-> set ('HTML. Doctype ', 'xhtml 1.0 transitional') // HTML document type (permanent)
$ Config-> set ('Core. encoding', 'utf-8') // character Encoding (permanent)

Elements allowed by HTML
P, table, tr, td, and br
New HTMLPurifier object

The code is as follows:

$ Purifier = new HTMLPurifier ($ config );

Call the purify method of the HTMLPurifier object

The code is as follows:

$ Puri_html = $ purifier-> purify ($ html );

Method 2
Customize a class HtmlPurifier. php

The code is as follows:

Require_once 'htmlpurifier. includes. php ';
Require_once 'htmlpurifier. autoload. php ';
Class Resume_HtmlPurifier implements Zend_Filter_Interface {
Protected $ _ htmlPurifier = null;
Public function _ construct ($ options = null)
{
$ Config = HTMLPurifier_Config: createDefault ();
$ Config-> set ('code. encoding', 'utf-8 ');
$ Config-> set ('HTML. Doctype ', 'xhtml 1.0 transitional ')
If (! Is_null ($ options )){
Foreach ($ options as $ option ){
$ Config-> set ($ option [0], $ option [1], $ option [2]);
}
}
$ This-> _ htmlPurifier = new HTMLPurifier ($ config );
}
Public function filter ($ value)
{
Return $ this-> _ htmlPurifier-> purify ($ value );

}
}
?>

Set config information
For example:

The code is as follows:

$ Conf = array (
Array ('HTML. allowedelements ',
Array (
'P' => true,
'Table' => true,
'Tr' => true,
'TD '=> true,
'Br '=> true,
),
False), // allow the attribute p table tr td br element
Array ('HTML. AllowedAttributes ', array ('class' => TRUE), false), // allow attribute class
Array ('attr. ForbiddenClasses ', array ('resume _ p' => TRUE), false), // disable classes such
Array ('autoformat. removeempty', true, false), // Remove space
Array ('autoformat. RemoveEmpty. RemoveNbsp ', true, false), // go to nbsp
Array ('uri. disable', true, false ),
);

Call

The code is as follows:

$ P = new Resume_HtmlPurifier ($ conf );
$ Puri_html = $ p-> filter ($ html );

The useful part of the HTMLPurifier plug‑in which the HTMLPurifier plug‑in is downloaded is that the library uses the HTMLPurifier library class library in the first way. The code is as follows :? Php re...