CI_Trackback
===============

Trackback Class

Trackback Sending/Receiving Class


* Class name: CI_Trackback
* Namespace: 





Properties
----------


### $charset

    public string $charset = 'UTF-8'

Character set



* Visibility: **public**


### $data

    public array $data = array('url' => '', 'title' => '', 'excerpt' => '', 'blog_name' => '', 'charset' => '')

Trackback data



* Visibility: **public**


### $convert_ascii

    public boolean $convert_ascii = TRUE

Convert ASCII flag

Whether to convert high-ASCII and MS Word
characters to HTML entities.

* Visibility: **public**


### $response

    public string $response = ''

Response



* Visibility: **public**


### $error_msg

    public array<mixed,string> $error_msg = array()

Error messages list



* Visibility: **public**


Methods
-------


### __construct

    void CI_Trackback::__construct()

Constructor



* Visibility: **public**




### send

    boolean CI_Trackback::send($tb_data)

Send Trackback



* Visibility: **public**


#### Arguments
* $tb_data **mixed**



### receive

    boolean CI_Trackback::receive()

Receive Trackback  Data

This function simply validates the incoming TB data.
It returns FALSE on failure and TRUE on success.
If the data is valid it is set to the $this->data array
so that it can be inserted into a database.

* Visibility: **public**




### send_error

    void CI_Trackback::send_error($message)

Send Trackback Error Message

Allows custom errors to be set. By default it
sends the "incomplete information" error, as that's
the most common one.

* Visibility: **public**


#### Arguments
* $message **mixed**



### send_success

    void CI_Trackback::send_success()

Send Trackback Success Message

This should be called when a trackback has been
successfully received and inserted.

* Visibility: **public**




### data

    string CI_Trackback::data($item)

Fetch a particular item



* Visibility: **public**


#### Arguments
* $item **mixed**



### process

    boolean CI_Trackback::process($url, $data)

Process Trackback

Opens a socket connection and passes the data to
the server. Returns TRUE on success, FALSE on failure

* Visibility: **public**


#### Arguments
* $url **mixed**
* $data **mixed**



### extract_urls

    string CI_Trackback::extract_urls($urls)

Extract Trackback URLs

This function lets multiple trackbacks be sent.
It takes a string of URLs (separated by comma or
space) and puts each URL into an array

* Visibility: **public**


#### Arguments
* $urls **mixed**



### validate_url

    void CI_Trackback::validate_url($url)

Validate URL

Simply adds "http://" if missing

* Visibility: **public**


#### Arguments
* $url **mixed**



### get_id

    string CI_Trackback::get_id($url)

Find the Trackback URL's ID



* Visibility: **public**


#### Arguments
* $url **mixed**



### convert_xml

    string CI_Trackback::convert_xml($str)

Convert Reserved XML characters to Entities



* Visibility: **public**


#### Arguments
* $str **mixed**



### limit_characters

    string CI_Trackback::limit_characters($str, $n, $end_char)

Character limiter

Limits the string based on the character count. Will preserve complete words.

* Visibility: **public**


#### Arguments
* $str **mixed**
* $n **mixed**
* $end_char **mixed**



### convert_ascii

    string CI_Trackback::convert_ascii($str)

High ASCII to Entities

Converts Hight ascii text and MS Word special chars
to character entities

* Visibility: **public**


#### Arguments
* $str **mixed**



### set_error

    void CI_Trackback::set_error($msg)

Set error message



* Visibility: **public**


#### Arguments
* $msg **mixed**



### display_errors

    string CI_Trackback::display_errors($open, $close)

Show error messages



* Visibility: **public**


#### Arguments
* $open **mixed**
* $close **mixed**