PHP Tag Cloud Implementation code

In the database, there is a "tag" field in the table that holds the article, which is used to store the label. The tags are separated by ",". such as "Php,vb, essays."
The following implementation code, the label from the database to search out, and format processing, so that it appears as the number of times based on the display of different sizes of text connections.
The details of which do not explain!
The implementation code for the label cloud with concept Chen, method stupid, and low efficiency is as follows:
Copy the code code as follows:
/**
* Wniaoblog Tag Template Showtag
*
* @package Wniaoblog
*
* @subpackage Tag
*/
Connect the database
Include ('.. /include/config.php ');
/**
* Counttag ()-Statistics labels appear the Number,and the data to being stored in the both 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= ' http://www.php1.cn/' > $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 "Tag Cloud";
$String = Gettag ();
$Row = Counttag ($String);
Showtag ($Row, $ablink);
echo "
";
?>

ok,done!

