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<?php
namespace Zotlabs\Text;
class Tagadelic {
static public function calc($arr) {
$tags = array();
$min = 1e9;
$max = -1e9;
$x = 0;
if(! $arr)
return array();
foreach($arr as $rr) {
$tags[$x][0] = $rr['term'];
$tags[$x][1] = log($rr['total']);
$tags[$x][2] = 0;
$min = min($min,$tags[$x][1]);
$max = max($max,$tags[$x][1]);
$x ++;
}
usort($tags, [self::class, 'tags_sort']);
$range = max(.01, $max - $min) * 1.0001;
for($x = 0; $x < count($tags); $x ++) {
$tags[$x][2] = 1 + floor(9 * ($tags[$x][1] - $min) / $range);
}
return $tags;
}
static public function tags_sort($a,$b) {
if(strtolower($a[0]) == strtolower($b[0]))
return 0;
return((strtolower($a[0]) < strtolower($b[0])) ? -1 : 1);
}
}
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