2017.8.11 wordpress 标签云函数

1.直接用
<?php wp_tag_cloud(”); ?>
设置的参数
<?php wp_tag_cloud(‘number=40&orderby=count&order=DESC&smallest=8&largest=15&unit=px’); ?>
各参数解释:
number表示显示多少个标签,比如40个
orderby表示调用标签的排序,默认为“name”按名称排序,“count”则按关联的文章数量排列;
order表示排序的方式DESC表示倒序,即数量越多的在前面,通常采用倒序,因为tag文章量越多,说明tag也重要,用户浏览的几率就越大,ASC表示正序,RAND表示随机
smallest表示标签文字字号的大小,比如最小是8
largest表示标签文字字号的大小,比如最大是15
unit表示标签文字字号的单位,可以为px、em、pt、百分比等,通常是用PX
还有两个可以设置的参数
exclude表示排除某些标签
include表示只包含某些标签
默认参数在wp-includes/category-template.php 如下
function wp_tag_cloud( $args = '' ) {
$defaults = array(
'smallest' => 8, 'largest' => 22, 'unit' => 'pt', 'number' => 45,
'format' => 'flat', 'separator' => "\n", 'orderby' => 'name', 'order' => 'ASC',
'exclude' => '', 'include' => '', 'link' => 'view', 'taxonomy' => 'post_tag', 'post_type' => '', 'echo' => true,
'show_count' => 0,
);
$args = wp_parse_args( $args, $defaults );
$tags = get_terms( $args['taxonomy'], array_merge( $args, array( 'orderby' => 'count', 'order' => 'DESC' ) ) ); // Always query top tags
if ( empty( $tags ) || is_wp_error( $tags ) )
return;
foreach ( $tags as $key => $tag ) {
if ( 'edit' == $args['link'] )
$link = get_edit_term_link( $tag->term_id, $tag->taxonomy, $args['post_type'] );
else
$link = get_term_link( intval($tag->term_id), $tag->taxonomy );
if ( is_wp_error( $link ) )
return;
$tags[ $key ]->link = $link;
$tags[ $key ]->id = $tag->term_id;
}
$return = wp_generate_tag_cloud( $tags, $args ); // Here's where those top tags get sorted according to $args
/**
* Filters the tag cloud output.
*
* @since 2.3.0
*
* @param string $return HTML output of the tag cloud.
* @param array $args An array of tag cloud arguments.
*/
$return = apply_filters( 'wp_tag_cloud', $return, $args );
if ( 'array' == $args['format'] || empty($args['echo']) )
return $return;
echo $return;
}
2彩色标签
在需要用的页面位置写入
<?php $html = '<div class="tagcloud">';
foreach (get_tags( array('number' => 50, 'orderby' => 'count', 'order' => 'DESC', 'hide_empty' => false) ) as $tag){
$color = dechex(rand(0,16777215));
$tag_link = get_tag_link($tag->term_id);
$html .= "<a href='{$tag_link}' title='{$tag->name} Tag' class='{$tag->slug}' style='color:#{$color}'>";
$html .= "{$tag->name} ({$tag->count})</a>";
}
$html .= '</div>';
echo $html;?>
3彩色背景框
在2的基础上把
$color = dechex(rand(0,16777215));
替换成
$colors = array('ffeded','f9e5ff','ffe4d7','d9ffff','dbfdec','d7edff','dcf3c2','fdf4d5');
$color=$colors[dechex(rand(0,7))];
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