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【PHP】 PHP创建标签云

作者:窦骁年华 / 发布于2012/3/6/ 640

<div>function getCloud( $data = array(), $minFontSize = 12, $maxFontSize = 30 )</div>
<div>{</div>
<div>$minimumCount = min( array_values( $data ) );</div>
<div>$maximumCount = max( array_values( $data ) );</div>
<div>$spread = $maximumCount - $minimumCount;</div>
<div>$cloudHTML = '';</div>
<div>$cloudTags = array();</div>
<div></div>
<div>$spread == 0 && $spread = 1;</div>
<div></div>
<div>foreach( $data as $tag => $count )</div>
<div>{</div>
<div>$size = $minFontSize + ( $count - $minimumCount )</div>
<div>* ( $maxFontSize - $minFontSize ) / $spread;</div>
<div>$cloudTags[] = '<a style="font-size: ' . floor( $size ) . 'px'</div>
<div>. '" href="#" title="\'' . $tag .</div>
<div>'\' returned a count of ' . $count . '">'</div>
<div>. htmlspecialchars( stripslashes( $tag ) ) . '</a>';</div>
<div>}
<div></div>
<div>return join( "\n", $cloudTags ) . "\n";</div>
<div>}
<div>/**************************</div>
<div>**** Sample usage ***/</div>
<div>$arr = Array('Actionscript' => 35, 'Adobe' => 22, 'Array' => 44, 'Background' => 43,</div>
<div>'Blur' => 18, 'Canvas' => 33, 'Class' => 15, 'Color Palette' => 11, 'Crop' => 42,</div>
<div>'Delimiter' => 13, 'Depth' => 34, 'Design' => 8, 'Encode' => 12, 'Encryption' => 30,</div>
<div>'Extract' => 28, 'Filters' => 42);</div>
<div>echo getCloud($arr, 12, 36);</div>
<div></div>

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