PHP tag cloud effect (simple example, introductory reference)

This article introduces a piece of code to implement the PHP tag cloud effect. The principle is very simple, and the implementation method is slightly simple, haha. Friends who are interested in studying PHP cloud tags can use it as a reference.

Share a piece of PHP tag cloud implementation code.

Code:

<?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 " 
"; 
?>