分享一段php 标签云的实现代码。
代码:
<?php /** * php 标签云 * * @package WNiaoBlog * * @subpackage Tag */ //Connect the database //include('../include/config.php'); //加载配置文件 /** * CountTag() - Statistics labels appear the number,and the data to be stored in the two array * * GetTag() - Access the Tag's Labels from the database */ function CountTag($String){ $TagString = $String; //echo $TagString." "; $Tags = explode(",",$TagString); $n = 1; $i = 0; $Continue = TRUE; //echo $Tags[1]." "; //in case no-label's article while($Tags[$n] OR $Tags[++$n] OR $Tags[++$n] ){ $EachTag = $Tags[$n++]; //echo $EachTag." "; $Continue = TRUE; for($i=0;$Continue;$i++){ if( $EachTagStr[$i][0] ) { if( $EachTagStr[$i][0] == $EachTag ){ $EachTagStr[$i][1]++; $Continue = FALSE; } else { if( $EachTagStr[$i+1][0] ) $Continue = TRUE; else { $EachTagStr[$i+1][0] = $EachTag; $EachTagStr[$i+1][1] = 1; $Continue = FALSE; } } } else { //initialize the array $EachTagStr[][] $EachTagStr[$i][0] = $EachTag; $EachTagStr[$i][1] = 1; $Continue = FALSE; } } } return $EachTagStr; } function ShowTag($Row,$ablink){ $i = 0; while($Row[$i][0]){ $EachTag = $Row[$i][0]; $EachCount = $Row[$i][1]; $Size = SetSize($EachCount); echo " < a style='color:BLUE ; font-size:".$Size." ' onMouseOver=this.style.color='#900000' onMouseOut=this.style.color='BLUE' href='".$ablink."tag?tag=".$EachTag."' target='_self' > ".$EachTag."(".$EachCount.")"." "; $i++; } } function GetTag(){ $QuerySet = mysql_query("select * from article"); while($Row = mysql_fetch_array($QuerySet)){ $Tag = $Row['tag']; $TagString = $TagString.",".$Tag; } return $TagString; } function SetSize($Size){ $Size += 10; if($Size > 30) $Size = 30; return $Size; } //Go echo " "; echo "标签云"; $String = GetTag(); $Row = CountTag($String); ShowTag($Row,$ablink); echo " "; ?>