WordPress实现彩色标签云的方法

function colorCloud($text) {
$text = preg_replace_callback('|<a (.+?)>|i', 'colorCloudCallback', $text);
return $text;
}
function colorCloudCallback($matches) {
$text = $matches[1];
$color = dechex(rand(0,16777215));
$pattern = '/style=('|")(.*)('|")/i';
$text = preg_replace($pattern, "style="color:#{$color};$2;"", $text);
return "<a $text>";
}
add_filter('wp_tag_cloud', 'colorCloud', 1);
可以看到,颜色是随机的,可以自行修改 $color = dechex(rand(0,16777215)); 这行来修改范围,这样就很炫耀哈,然后在侧边栏 sidebar.php 里调用如下代码：

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