PHP 创建标签云函数代码

function getCloud( $data = array(), $minFontSize = 12, $maxFontSize = 30 )
{
$minimumCount = min( array_values( $data ) );
$maximumCount = max( array_values( $data ) );
$spread = $maximumCount - $minimumCount;
$cloudHTML = ;
$cloudTags = array();

$spread == 0 && $spread = 1;

foreach( $data as $tag => $count )
{
$size = $minFontSize + ( $count - $minimumCount )
* ( $maxFontSize - $minFontSize ) / $spread;
$cloudTags[] = <a style="font-size: . floor( $size ) . px
. " href="#" title="\ . $tag .
\ returned a count of . $count . ">
. htmlspecialchars( stripslashes( $tag ) ) . </a>;
}

return join( "\n", $cloudTags ) . "\n";
}
/**************************
**** Sample usage ***/
$arr = Array(Actionscript => 35, Adobe => 22, Array => 44, Background => 43,
Blur => 18, Canvas => 33, Class => 15, Color Palette => 11, Crop => 42,
Delimiter => 13, Depth => 34, Design => 8, Encode => 12, Encryption => 30,
Extract => 28, Filters => 42);
echo getCloud($arr, 12, 36);