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Fixes #456: Tag cloud does not sort tags (fully) alphabetically

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* Use Collator class to sort tags using the locale (in PECL intl, included in most PHP installation).
  * Use strcasecmp if Collator is not found.

Both sorts are case insensitive.
This commit is contained in:
ArthurHoaro 2016-02-05 16:10:26 +01:00
parent 268a2e5265
commit f1e96a06d8
1 changed files with 17 additions and 3 deletions
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20
index.php
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@ -1203,11 +1203,25 @@ function renderPage()
// We sort tags alphabetically, then choose a font size according to count.
// First, find max value.
$maxcount=0; foreach($tags as $key=>$value) $maxcount=max($maxcount,$value);
ksort($tags);
$maxcount = 0;
foreach ($tags as $value) {
$maxcount = max($maxcount, $value);
}
// Sort tags alphabetically: case insensitive, support locale if avalaible.
uksort($tags, function($a, $b) {
// Collator is part of PHP intl.
if (class_exists('Collator')) {
$c = new Collator(setlocale(LC_ALL, 0));
return $c->compare($a, $b);
} else {
return strcasecmp($a, $b);
}
});
$tagList=array();
foreach($tags as $key=>$value)
// Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
// Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
{
$tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6);
}