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Example code of ryangittings/didom

Informations about the package didom

DiDOM

DiDOM - simple and fast HTML parser.

Contents

Installation

To install DiDOM run the command:

composer require imangazaliev/didom

Quick start

Creating new document

DiDom allows to load HTML in several ways:

With constructor

The second parameter specifies if you need to load file. Default is false.

With separate methods

There are two methods available for loading XML: loadXml and loadXmlFile.

These methods accept additional options:

Search for elements

DiDOM accepts CSS selector or XPath as an expression for search. You need to path expression as the first parameter, and specify its type in the second one (default type is Query::TYPE_CSS):

With method find():

If the elements that match a given expression are found, then method returns an array of instances of DiDom\Element, otherwise - an empty array. You could also get an array of DOMElement objects. To get this, pass false as the third parameter.

With magic method __invoke():
With method xpath():

You can do search inside an element:

Verify if element exists

To verify if element exist use has() method:

If you need to check if element exist and then get it:

but it would be faster like this:

because in the first case it makes two requests.

Supported selectors

DiDom supports search by:

Output

Getting HTML

With method html():
Casting to string:
Formatting HTML output

An element does not have format() method, so if you need to output formatted HTML of the element, then first you have to convert it to a document:

Inner HTML

Document does not have the method innerHtml(), therefore, if you need to get inner HTML of a document, convert it into an element first:

Getting XML

Getting content

Creating a new element

Creating an instance of the class

First parameter is a name of an attribute, the second one is its value (optional), the third one is element attributes (optional).

An example of creating an element with attributes:

An element can be created from an instance of the class DOMElement:

Using the method createElement

Getting the name of an element

Getting parent element

Getting sibling elements

Getting the child elements

Getting document

Working with element attributes

Creating/updating an attribute

With method setAttribute:
With method attr:
With magic method __set:

Getting value of an attribute

With method getAttribute:
With method attr:
With magic method __get:

Returns null if attribute is not found.

Verify if attribute exists

With method hasAttribute:
With magic method __isset:

Removing attribute:

With method removeAttribute:
With magic method __unset:

Comparing elements

Appending child elements

Adding a child element

Replacing element

Removing element

Working with cache

Cache is an array of XPath expressions, that were converted from CSS.

Getting from cache

Cache setting

Miscellaneous

preserveWhiteSpace

By default, whitespace preserving is disabled.

You can enable the preserveWhiteSpace option before loading the document:

count

The count () method counts children that match the selector:

matches

Returns true if the node matches the selector:

isElementNode

Checks whether an element is an element (DOMElement):

isTextNode

Checks whether an element is a text node (DOMText):

isCommentNode

Checks whether the element is a comment (DOMComment):

Comparison with other parsers

Comparison with other parsers

All versions of didom with dependencies

PHP Build Version
Package Version
Requires php Version >=5.4
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