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