"Alice's Restaurant",
"artist" => "Arlo Guthrie",
"cover" => "/stuff/albums/alicesrestaurant.jpg",
"tags" => "folk americana cd 1960s"
),
array(
"title" => "Speaking in Tongues",
"artist" => "Talking Heads",
"cover" => "/stuff/albums/tongues.jpg",
"tags" => "rock new-wave vinyl 1980s"
),
array(
"title" => "To The Faithful Departed",
"artist" => "The Cranberries",
"cover" => "/stuff/albums/faithfuldeparted.jpg",
"tags" => "rock alternative cd 1990s"
),
array(
"title" => "good kid, m.A.A.d city",
"artist" => "Kendrick Lamar",
"cover" => "/stuff/albums/maad.jpg",
"tags" => "hip-hop cd 2010s"
),
array(
"title" => "Moving Pictures",
"artist" => "Rush",
"cover" => "/stuff/albums/movingpictures.jpg",
"tags" => "rock progressive vinyl cd 1980s"
),
array(
"title" => "Grace Under Pressure",
"artist" => "Rush",
"cover" => "/stuff/albums/gp.jpg",
"tags" => "rock progressive cd 1980s"
),
array(
"title" => "Splendido Hotel",
"artist" => "Al Di Meola",
"cover" => "/stuff/albums/Splendido_hotel.jpg",
"tags" => "jazz fusion vinyl 1980s"
),
array(
"title" => "Rumours",
"artist" => "Fleetwood Mac",
"cover" => "/stuff/albums/rumours.jpg",
"tags" => "rock pop vinyl 1970s"
),
array(
"title" => "Diva",
"artist" => "Annie Lennox",
"cover" => "/stuff/albums/diva.jpg",
"tags" => "pop cd 1990s"
),
array(
"title" => "Street Lady",
"artist" => "Donald Byrd",
"cover" => "/stuff/albums/streetlady.jpg",
"tags" => "jazz fusion funk cd 1970s"
)
);
function splitTags($tags) {
$tagArray = explode(" ", $tags);
return $tagArray;
}
function printTags($tagArray) {
foreach ($tagArray as $tag) {
echo "#$tag ";
}
}
function getAllTags($array) {
$tagList = array();
foreach ($array as $entry) {
$entryTags = splitTags($entry['tags']);
foreach ($entryTags as $tag) {
$key = array_search($tag, array_column($tagList, 'name'));
if ($key == false) {
$tagList[] = array(
"name" => $tag,
"count" => 1
);
} else {
$tagList[$key]['count'] += 1;
}
}
}
array_multisort(array_column($tagList,'name'), SORT_ASC, SORT_NATURAL, $tagList);
return $tagList;
}
function printAllTags($tagArray) {
foreach ($tagArray as $tag) {
$name = $tag['name'];
$count = $tag['count'];
echo "#$name ($count) ";
}
}
function filterAlbums($albums, $tag) {
$filteredAlbums = array();
foreach ($albums as $album) {
$albumTags = splitTags($album['tags']);
if (in_array($tag, $albumTags)) {
$filteredAlbums[] = $album;
}
}
return $filteredAlbums;
}
function printAlbums($albums) {
foreach ($albums as $album) {
$title = $album['title'];
$artist = $album['artist'];
$cover = $album['cover'];
$tags = splitTags($album['tags']);
include "albumtemplate.php";
}
}
?>
PHP filtering example
Basic PHP filtering example
Filter albums by tag:
View all
There are no albums with this tag.";
} else {
$taggedAlbums = filterAlbums($albums, $tag);
echo "";
printAlbums($taggedAlbums);
echo "
";
}
} else {
echo "";
printAlbums($albums);
echo "
";
}
?>