/**
* Retrieve all the tags from the BD and count the number of occurrences of each tag
* @return Array with the tags and the number of times they were mentioned
*/
function sumAllTags()
{
$data = FacebookTags::all();
//Retrieve all data relative to tags
$sumTags = array();
$tags = json_decode($data);
foreach ($tags as $key => $value) {
$tags = $value->Tags;
foreach ($tags as $id => $tagValue) {
if (isset($sumTags[$id])) {
$sumTags[$id] += $tagValue;
} else {
$sumTags[$id] = $tagValue;
}
}
}
return $sumTags;
}
