tag cloud

2007-05-1

<code>
function printTagCloud($tags) {
// $tags is the array

arsort($tags);

$max_size = 32; // max font size in pixels
$min_size = 12; // min font size in pixels

// largest and smallest array values
$max_qty = max(array_values($tags));
$min_qty = min(array_values($tags));

// find the range of values
$spread = $max_qty - $min_qty;
if ($spread == 0) { // we don’t want to divide by zero
$spread = 1;
}

// set the font-size increment
$step = ($max_size - $min_size) / ($spread);

// loop through the tag array
foreach ($tags as $key => $value) {
// calculate font-size
// find the $value in excess of $min_qty
// multiply by the font-size increment ($size)
// and add the $min_size set above
$size = round($min_size + (($value - $min_qty) * $step));

echo ‘<a href=”#” style=”font-size: ‘ . $size . ‘px” title=”‘ . $value . ‘ things tagged with ‘ . $key . ‘”>’ . $key . ‘</a> ‘;
}
}

$tags = array(‘weddings’ => 32, ‘birthdays’ => 41, ‘landscapes’ => 62, ‘ham’ => 51, ‘chicken’ => 23, ‘food’ => 91, ‘turkey’ => 47, ‘windows’ => 82, ‘apple’ => 27);

printTagCloud($tags);
</code>

Rating: 9.3/10 (3 votes cast)

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