标签云添加彩色标签云

多彩背景云标签

/* 彩色静态标签云 Color Tag Cloud 
/* -------------------------------- */
function colorCloud($text) {
  $text = preg_replace_callback('|<a (.+?)>|i', 'colorCloudCallback', $text);
  $text=preg_replace('/<a /','<a ',$text);
  return $text;
}
function colorCloudCallback($matches) {
  $text = $matches[1];
//这里定义我们背景色的范围，如果不想设置背景色的输出范围我们可以使用
//$color = dechex(rand(0,16777215));从所有颜色中随机出一个
  $a = array('8D7EEA','F99FB2','AEE05B','E8D368','F75D78','55DCAB','F75DB1','ABABAF','7EA8EA');
  $co = array_rand($a,2);
  $color = $a[$co[0]];
//随机颜色代码结束，下面开始吧颜色赋值给每个标签生成背景色
  $pattern = '/style=(\'|\")(.*)(\'|\")/i';
  $text = preg_replace($pattern, "style=\"background:#{$color};\"", $text);
  return "<a $text>";
}
//把php代码挂载到wp_tag_cloud钩子上
add_filter('wp_tag_cloud', 'colorCloud', 1);