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<?php
/** themes
* --- -- -- - - -
* auto select one id of L = array.LENGTH, per month:
* ( ( (month*31 + day) % L*2 ) div 2 )
* this will allow theme exchange every 2 days
*
*
* 4-day rollup:
* --- -- -- - - -
* supports up to 21 themes/season
* = 84 themes/year
*
* algo:
* ( ( ( month*31 + day) % L*4 ) div 4 )
* change seasonal theme every 4 days
* ... Catch Exceptions:
* if (month == 12) : month = 0
* if (month == 6 && day == 1) then day = 2
*
*/
// decide a theme season according to month
$mo = intval(date('m'));
switch ($mo) {
case 12: case 1: case 2:
$season = 'winter';
break;
case 3: case 4: case 5:
$season = 'spring';
break;
case 6: case 7: case 8:
$season = 'summer';
break;
case 9: case 10: case 11:
$season = 'fall';
break;
default:
$season = 'spring';
}
$theme_def = [
# --- summer ---
's1' => [
'css' => 'summer-01',
'url' => 'https://www.freepik.com/free-photo/nazare-portugal_7487018.htm',
'label' => 'frimufilms: North beach and ocean in Nazare, Portugal'
],
's2' => [
'css' => 'summer-02',
'url' => 'https://www.pxfuel.com/en/desktop-wallpaper-elkiv',
'label' => '@pxfuel: Faded orange lines'
],
's5' => [
'css' => 'summer-05',
'url' => 'https://www.vecteezy.com/vector-art/6691305',
'label' => 'Mohammad Arfa Affan: 3d Vectors (@Vecteezy)'
],
's9' => [
'css' => 'summer-09',
'url' => 'https://unsplash.com/photos/cNagAGEok9k',
'label' => 'Willian Justen de Vasconcellos: Desert, Huacachina, Peru'
],
# --- fall ---
'f8' => [
'css' => 'fall-08',
'url' => 'https://www.flickr.com/photos/docsearls/12114022885/',
'label' => 'Doc Searls: Amazing Santa Barbara sunset (2014/01)'
],
'f9' => [
'css' => 'fall-09',
'url' => 'https://www.freepik.com/free-photo/flock-birds-flying-during-sunset_13962565.htm',
'label' => 'wirestock: View of a flock of birds flying into a beautiful sky during sunset'
],
# --- winter ---
'w3' => [
'css' => 'winter-03',
'url' => 'https://unsplash.com/photos/yzkoleKww6w',
'label' => 'Raimond Klavins: Snow covered mountain under blue sky during daytime, Himalayas'
],
'w8' => [
'css' => 'winter-08',
'url' => 'https://www.freepik.com/free-photo/3d-iceberg-blue-sea_3585791.htm',
'label' => 'kjpargeter: 3d iceberg in blue sea'
],
'w9' => [
'css' => 'winter-09',
'url' => 'https://www.freepik.com/free-photo/abstract-water-waves-with-ink-dots_5068293.htm',
'label' => 'freepik: Abstract water waves with ink dots'
],
'w10' => [
'css' => 'winter-10',
'url' => 'https://unsplash.com/photos/D1eFDB4CMj0',
'label' => 'Vidar Nordli-Mathisen: Skogsøya, Norway'
],
# --- spring ---
'g1' => [
'css' => 'spring-01',
'url' => 'https://www.flickr.com/photos/youngsabroad/26305344342/',
'label' => 'A Young Retirement: Bokeh background'
],
'g4' => [
'css' => 'spring-04',
'url' => 'https://www.pxfuel.com/en/desktop-wallpaper-evgsz',
'label' => '@pxfuel: Nature, lights'
],
'g9' => [
'css' => 'spring-09',
'url' => 'https://www.flickr.com/photos/112072356@N06/14882252902/',
'label' => 'auimeesri: banana leaf; blur green of banana leaf with water drop'
]
];
$themes = [
'summer' => [ 's1', 's2', 's5', 'g9', 'g1', 's9' ],
'fall' => [ 'f8', 's5', 'g4', 's2', 'f9' ],
'winter' => [ 'w3', 'w8', 'w9', 'w10' ],
'spring' => [ 'g1', 'g4', 'w3', 'g9', 'f9' ]
];
/** check algo in the begining of this file */
$day = intval(date('d'));
$themesLen = count($themes[$season]);
if ($mo == 12) { $mo = 0; }
if ($mo == 6 && $day == 1) { $day == 2; }
$imageID = intdiv( ( ( $mo*31 + $day) % $themesLen*4 ), 4 );
define('THEME', $theme_def[ $themes[ $season ][ $imageID ] ]);
// testing: define('THEME', $theme_def[ $themes[ 'summer' ][ 5 ] ]);
?>
<!-- theme overides -->
<link href="/assets/css/themes/<?=THEME['css']?>.css" rel="stylesheet">
|
