Link.php

<?php
 
namespace Guzzle\Http\Message\Header;
 
use Guzzle\Http\Message\Header;
 
class Link extends Header
{
    public function addLink($url, $rel, array $params = array())
    {
        $values = array("<{$url}>", "rel=\"{$rel}\"");
 
        foreach ($params as $k => $v) {
            $values[] = "{$k}=\"{$v}\"";
        }
 
        return $this->add(implode('; ', $values));
    }
 
    public function hasLink($rel)
    {
        return $this->getLink($rel) !== null;
    }
 
    public function getLink($rel)
    {
        foreach ($this->getLinks() as $link) {
            if (isset($link['rel']) && $link['rel'] == $rel) {
                return $link;
            }
        }
 
        return null;
    }
 
    public function getLinks()
    {
        $links = $this->parseParams();
 
        foreach ($links as &$link) {
            $key = key($link);
            unset($link[$key]);
            $link['url'] = trim($key, '<> ');
        }
 
        return $links;
    }
}