WordPress实现彩色标签云的方法
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>本文实例讲述了WordPress实现彩色标签云的方法。分享给大家供大家参考。具体分析如下：</p>
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彩色标签云我们在很多的网站都可以看到此类效果了,这里就来实现wordpress增加彩色标签云效果.</p>
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这种彩色标签云效果可以通过修改Simple Tags来显示。</p>
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1.在simple-tags.client.php中先找到如下代码:<br>
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<div style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div style="margin: 0px; padding: 0px; outline: none; float: right; line-height: 25.2px; font-size: 14px;">
<span style="line-height: 25.2px; cursor: pointer;"><u>复制代码</u></span>
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代码如下:</div>
<div id="phpcode11" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
function getColorByScale($scale_color, $min_color, $max_color)</div>
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2.注释掉（或者删除）getColorByScale这个function中的以下语句：<br>
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<div style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div style="margin: 0px; padding: 0px; outline: none; float: right; line-height: 25.2px; font-size: 14px;">
<span style="line-height: 25.2px; cursor: pointer;"><u>复制代码</u></span>
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代码如下:</div>
<div id="phpcode12" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
$scale_color = $scale_color / 100; <br>
$minr = hexdec(substr($min_color, 1, 2)); <br>
$ming = hexdec(substr($min_color, 3, 2)); <br>
$minb = hexdec(substr($min_color, 5, 2)); <br>
$maxr = hexdec(substr($max_color, 1, 2)); <br>
$maxg = hexdec(substr($max_color, 3, 2)); <br>
$maxb = hexdec(substr($max_color, 5, 2)); <br>
$r = dechex(intval((($maxr - $minr) * $scale_color) + $minr)); <br>
$g = dechex(intval((($maxg - $ming) * $scale_color) + $ming)); <br>
$b = dechex(intval((($maxb - $minb) * $scale_color) + $minb));</div>
<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>3.加上以下代码:</span><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><div style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div style="margin: 0px; padding: 0px; outline: none; float: right; line-height: 25.2px; font-size: 14px;">
<span style="line-height: 25.2px; cursor: pointer;"><u>复制代码</u></span>
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代码如下:</div>
<div id="phpcode13" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
//Colorful Tag Cloud start <br>
$r = dechex(rand(0,255)); <br>
$g = dechex(rand(0,196)); <br>
$b = dechex(rand(0,255));</div>
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Colorful Tag Cloud end至于要显示多少个标签，怎么排列，热门标签和普通标签分别为多少大小的字体，可以在后台的Simple Tags的选项中设置. <br>
方法二,如果上面办法不可以我们可参考如下办法。</p>
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后台编辑 主题 的 functions.php,输入以下代码:<br>
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<div style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div style="margin: 0px; padding: 0px; outline: none; float: right; line-height: 25.2px; font-size: 14px;">
<span style="line-height: 25.2px; cursor: pointer;"><u>复制代码</u></span>
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代码如下:</div>
<div id="phpcode14" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
function colorCloud($text) { <br>
$text = preg_replace_callback('|<a (.+?)>|i', 'colorCloudCallback', $text); <br>
return $text; <br>
} <br>
function colorCloudCallback($matches) { <br>
$text = $matches; <br>
$color = dechex(rand(0,16777215)); <br>
$pattern = '/style=('|")(.*)('|")/i'; <br>
$text = preg_replace($pattern, "style="color:#{$color};$2;"", $text); <br>
return "<a $text>"; <br>
} <br>
add_filter('wp_tag_cloud', 'colorCloud', 1);</div>
<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>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：</span><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><div style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div style="margin: 0px; padding: 0px; outline: none; float: right; line-height: 25.2px; font-size: 14px;">
<span style="line-height: 25.2px; cursor: pointer;"><u>复制代码</u></span>
</div>
代码如下:</div>
<div id="phpcode15" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
<?php wp_tag_cloud('smallest=8&largest=24&number=50'); ?></div>
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即可,8 是最小的 tag 的字体大小(用的最少的 tag),24 是最大的(用的最多的 tag)，50 是 tag 的数目,可以自行修改.</p>
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希望本文所述对大家的WordPress建站有所帮助。</p>
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