【Ripro美化】圆角标签云的彩色背景效果实现纯粹的代码

/***圆角背景色标签 - ZTmbk.com***/
function colorCloud($text) { 
$text = preg_replace_callback('|<a (.+?)>|i', 'colorCloudCallback', $text); 
return $text; 
} 
function colorCloudCallback($matches) { 
$text = $matches[1]; 
$colors = array('48D1CC','a26ff9','fb7da9','666','19B5FE','ff5e5c','ffbb50','1ac756'); 
$color=$colors[dechex(rand(0,7))]; 
$pattern = '/style=(\'|\")(.*)(\'|\")/i'; 
$text = preg_replace($pattern, "style=\"display: inline-block; *display: inline; *zoom: 1; color: #fff; padding: 6px 6px; margin: 0 5px 5px 0; background-color: #{$color}; border-radius: 5px; -webkit-transition: background-color .4s linear; -moz-transition: background-color .4s linear; transition: background-color .4s linear;\"", $text); 
$pattern = '/style=(\'|\")(.*)(\'|\")/i'; 
return "<a $text>"; 
} 
add_filter('wp_tag_cloud', 'colorCloud', 1);