# Array2feed
# @author: bronco@warriordudimanche.net
# @version 0.1
# @license free and opensource
# @inspired by http://milletmaxime.net/syndexport/
# @use: $items=feed2array('http://sebsauvage.net/links/index.php?do=rss');
# @doc:
# the array must have an index 'infos' and another called 'items'
#info key
# for rss type feed, infos must have at least the 'title', 'description', 'guid' keys
# for atom type feed, infos must have at least the 'title', 'id', 'subtitle', 'link' keys
# items key => array
# for rss type feed, each item must have the 'title', 'description', 'pubDate' and 'link' keys
# for atom type feed, info must have the 'title', 'id', 'updated, 'link' & 'content' keys
function array2feed($array=null){
if (!$array){return false;}
if (empty($array['infos']['type'])){$array['infos']['type']='rss';}else{$array['infos']['type']=strtolower($array['infos']['type']);}
if (empty($array['infos']['description'])){$array['infos']['description']='';}
$r="n";$t="t";
$tpl=array('rss'=>array(),'atom'=>array());
$tpl['rss']['header']='<?xml version="1.0" encoding="utf-8" ?>'.$r.'<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">'.$r.$t.'<channel>'.$r;
$tpl['atom']['header']='<feed xmlns="http://www.w3.org/2005/Atom">'.$r;
$tpl['rss']['footer']=$t.'</channel></rss>'.$r;
$tpl['atom']['footer']='</feed>'.$r;
$tpl['rss']['content-type']='Content-Type: application/rss+xml';
$tpl['atom']['content-type']='Content-Type: application/atom+xml;charset=utf-8';
header($tpl[$array['infos']['type']]['content-type']);
$feed=$tpl[$array['infos']['type']]['header'];
//create the feed's info content
foreach($array['infos'] as $key=>$value){
if ($array['infos']['type']=='atom'){ // ATOM
if ($key=='link'){$feed.=$t.$t.'<link href="'.$value.'" rel="self" type="application/atom+xml"/>'.$r;}
elseif ($key=='author'){$feed.=$t.$t.'<author><name>'.$value.'</name></author>'.$r;}
elseif ($key=='licence'){$feed.=$t.$t.'<'.$key.' href="'.$value.'" rel="license"/>'.$r;} // in atom feed, licence is the link to the licence type
elseif ($key!='version'&&$key!='type'){$feed.=$t.$t.'<'.$key.'>'.$value.'</'.$key.'>'.$r;}
}else{ // RSS
if ($key!='version'&&$key!='type'){$feed.=$t.$t.'<'.$key.'>'.$value.'</'.$key.'>'.$r;}
}
}
//then the items content
foreach ($array['items'] as $item){
if ($array['infos']['type']=='atom'){ $feed.=$t.$t.$t.'<entry>'.$r;}else{$feed.=$t.$t.$t.'<item>'.$r;}
foreach($item as $key=>$value){
if ($array['infos']['type']=='atom'){ // ATOM
if ($key=='link'){$feed.=$t.$t.$t.$t.'<link href="'.$value.'" rel="alternate" type="text/html"/>'.$r;}
elseif ($key=='content'){$feed.=$t.$t.$t.$t.'<content type="text">'.htmlspecialchars($value).'</content>'.$r;}
else{$feed.=$t.$t.$t.$t.'<'.$key.'>'.$value.'</'.$key.'>'.$r;}
}else{ // RSS
if ($key=='date'||$key=='pubDate'||$key=='title'||$key=='link'){$feed.=$t.$t.$t.$t.'<'.$key.'>'.htmlspecialchars($value).'</'.$key.'>'.$r;}
elseif($key=='guid'){ $feed.=$t.$t.$t.$t.'<guid isPermaLink="false">'.$value.'</guid>'.$r;}
else{$feed.=$t.$t.$t.$t.'<'.$key.'><![CDATA['.$value.']]></'.$key.'>'.$r;}
}
}
if ($array['infos']['type']=='atom'){ $feed.=$t.$t.$t.'</entry>'.$r;}else{$feed.=$t.$t.$t.'</item>'.$r;}
}
$feed.=$tpl[$array['infos']['type']]['footer'];
return $feed;
}
$array=array(
'infos'=>array(
'type'=>'rss',
'description'=>'Ceci est le test ultime de la mort',
'title'=>'test de création de flux rss',
'link'=>'http://www.warriordudimanche.net',
),
'items'=>array(
0=>array(
'description'=>'Ceci est le premier item du flux',
'title'=>'item 1 : le titre',
'link'=>'http://www.warriordudimanche.net',
'guid'=>'http://www.warriordudimanche.net#1',
'pubDate'=>@date('r'),// Be carefull, the rss pubDate format is specific ! RFC 2822 (see http://www.faqs.org/rfcs/rfc2822.html)
),
1=>array(
'description'=>'Ceci est le second item du flux',
'title'=>'item 2 : le retour',
'link'=>'http://www.warriordudimanche.net',
'guid'=>'http://www.warriordudimanche.net#2',
'pubDate'=>@date('r'),
),
2=>array(
'description'=>'Ceci est le troisième item du flux',
'title'=>'item 3 : la revanche',
'link'=>'http://www.warriordudimanche.net',
'guid'=>'http://www.warriordudimanche.net#3',
'pubDate'=>@date('r'),
),
)
);
echo array2feed($array);