Upload Image

<?
if(isset($_POST['submit'])) { //see if submit button is pressed.

//check if they decided to upload a pic:
if($_FILES['userfile']['size'] > 1) { 

$max_size = 100000;
$max_height = 300;
$max_width = 300;

$info = getimagesize($_FILES['userfile']['tmp_name']);

//check file-size (in bytes): 
if(($_FILES['userfile']['size'] > $_POST['MAX_FILE_SIZE']) || 
($_FILES['userfile']['size'] > $max_size)) {
    die("<BR><BR>Error: Upload file size too large: (<b>" .
 $_FILES['userfile']['size'] . "</b>). Must not exceed XX kb.");
}

//check the extension.
     $array = explode(".", $_FILES['userfile']['name']); 
     $nr    = count($array); 
     $ext  = $array[$nr-1];
     if(($ext !="jpg") && ($ext !="jpeg") && ($ext !="png")) 
     die("<BR><BR>Error: file extension un-recognized. 
         Be sure your image follows the correct extension (.JPG or .PNG)");

//CHECK TYPE: (what the browser sent)
if(($_FILES['userfile']['type'] != "image/jpeg") && ($_FILES['userfile']['type'] != 
"image/pjpeg") && ($_FILES['userfile']['type'] != "image/png")) {
 die("<BR><BR>Error: Upload file type un-recognized. Only .JPG or .PNG 
     images allowed.");
}
 
//DOUBLE CHECK TYPE: if image MIME type from GD getimagesize() 
//-In case it was a FAKE!       
if(($info['mime'] != "image/jpeg") && ($info['mime'] != "image/pjpeg") && 
($info['mime'] != "image/png")) {
 die("<BR><BR>Error: Upload file type un-recognized. Only .JPG or .PNG
      images allowed.");
}

//check file size (length & width)
if(($info[0] > $max_width) || ($info[1] >$max_height)) {
    die("<BR><BR>Error: Image size error (<b>" . $info[0] . 
        "</b> x <b>" . $info[1] . "</b>). Must not exceed ". $max_height . 
        " x ". $max_width .".");
}

//rename file, move it to location.
if(is_uploaded_file($_FILES['userfile']['tmp_name'])) {

//get max number of images the user has uploaded 
$m = mysql_query("SELECT max(user_images) as `total_images` 
             FROM `images` WHERE `user_id` = '".$_SESSION['user_id']."'");
     if(!$m) die('An Error Occurred.');
       $result = mysql_fetch_object($m);
          if($result->total_images <= 0) {
                $image_number = 1;
          } else {
         $image_number = $result->total_images + 1;
          } //end if

$filename = strtolower($_SESSION['username']) . $image_number;

  if(move_uploaded_file($_FILES['userfile']['tmp_name'] ,
     $_SERVER['DOCUMENT_ROOT']."/path/to/image/".$filename . '.' . $ext)) {
    echo("File uploaded successfully.");  
   } else {
        echo("An error occurred while uploading.");
   }//end upload
} //end is_uploaded_file

} else { //display form ?>

<form enctype="multipart/form-data" action="<? $_SERVER['PHP_SELF']; ?>" 
method="post" name="uploadImage" />
<input type="hidden" MAX_UPLOAD_SIZE = "10000" />
<input type="file" name="userfile" size="35" />
<input type="submit" name="submit" value="Upload Image">

<? } //end else ?>

php Script to fetch RSS info

/**
* Class name: RSS
* Author : LeadStar Team
* website : http://www.leadstar.com.cn/
* CopyRight : LeadStar Team
*/
if (defined('_CLASS_RSS_PHP')) return;
define('_CLASS_RSS_PHP',1);

class RSS {
//public
var $rss_ver = "2.0";
var $channel_title = '';
var $channel_link = '';
var $channel_description = '';
var $language = 'zh_CN';
var $copyright = '';
var $webMaster = '';
var $pubDate = '';
var $lastBuildDate = '';
var $generator = 'RedFox RSS Generator';

var $content = '';
var $items = array();

/**************************************************************************/
// function name: RSS
// function description: construct
// parameter: $title
// $link
// $description
/**************************************************************************/
function RSS($title, $link, $description) {
$this->channel_title = $title;
$this->channel_link = $link;
$this->channel_description = $description;
$this->pubDate = Date('Y-m-d H:i:s',time());
$this->lastBuildDate = Date('Y-m-d H:i:s',time());
}
/**************************************************************************/
// function name: AddItem
// function description: add a new node
// parameter: $title
// $link
// $description $pubDate
/**************************************************************************/
function AddItem($title, $link, $description ,$pubDate) {
$this->items[] = array('title' => $title ,
'link' => $link,
'description' => $description,
'pubDate' => $pubDate);
}
/**************************************************************************/
// function name: BuildRSS
// function description: generate rss xml file content
/**************************************************************************/
function BuildRSS() {
$s = "
\n\n";
// start channel
$s .= "\n";
$s .= "channel_title}]]>\n";
$s .= "<1ink>channel_link}]]>\n";
$s .= "channel_description}]]>\n";
$s .= "{$this->language}\n";
if (!empty($this->copyright)) {
$s .= "copyright}]]>\n";
}
if (!empty($this->webMaster)) {
$s .= "webMaster}]]>\n";
}
if (!empty($this->pubDate)) {
$s .= "{$this->pubDate}\n";
}

if (!empty($this->lastBuildDate)) {
$s .= "{$this->lastBuildDate}\n";
}

if (!empty($this->generator)) {
$s .= "{$this->generator}\n";
}

// start items
for ($i=0;$iitems);$i++) {
$s .= "\n";
$s .= "items[$i]['title']}]]>\n";
$s .= "<1ink>items[$i]['link']}]]>\n";
$s .= "items[$i]['description']}]]>\n";
$s .= "{$this->items[$i]['pubDate']}\n";
$s .= "\n";
}

// close channel
$s .= "\n";
$this->content = $s;
}
/**************************************************************************/
// function name: Show
// function description: print out the RSS xml file content
/**************************************************************************/
function Show() {
if (empty($this->content)) $this->BuildRSS();
echo($this->content);
}
/**************************************************************************/
// function name: SaveToFile
// function description: save the RSS content to a file
// parameter: $fname the file name to be saved
/**************************************************************************/
function SaveToFile($fname) {
$handle = fopen($fname, 'wb');
if ($handle === false) return false;
fwrite($handle, $this->content);
fclose($handle);
}
}

Ajaxian.com 2006 Survey Results

Ajaxian.com 2006 Survey Results

The results of our second annual Ajaxian.com survey, prepared by Richard Monson-Hafael from the Burton Group, are in. And the winner is… Prototype, the most popular Ajax framework, by a considerable margin: 43% of you use it. Script.aculo.us is next, at 33%, confirming observations that many of made of the popularity of that duo.

The full results of our framework survey follow:

Note that multiple responses per participant were allowed; we’ve also thrown out any result with less than 3% of responses in the above graphic.

We also asked you about the server-side platform you’re using. The big winner here was PHP, with 50% of you using it:

Some other interesting factoids:

• 25% of you eschew frameworks and work with XMLHttpRequest directly (wow!)
• 11% of you are using JSON to transfer data; unfortunately, we didn’t ask enough questions to determine how this compares with XML or other data formats
• 3% of you are still using Microsoft’s “classic” ASP framework; five of you (~0.6%) are using C++ (+2 points for increased performance, -100 for increased complexity?)
• 2% of you wrote in to say that you’re using Adobe’s Flex toolkit (hey, those banner ads are working out…); 2% also indicated that they use the Flex/Ajax bridge. Unfortunately, the survey software we used doesn’t let us correlate these entries, so we can only say that 2%-4% of you are using Flex in some way
• One participant uses Delphi (how’s that working out for you?), and another is using LISP (can we hire you?).

getElementsByClassName My Eesy Edition

Take it easy

function getElementsByClassName(className, tag){
var testClass = new RegExp("(^|\\s)" + className + "(\\s|$)");
var tag = tag || "*";

var elements = (tag == "*" && document.all)? document.all : document.getElementsByTagName(tag);
var returnElements = [];
var current;
var length = elements.length;
for(var i=0; i
current = elements[i];
if(testClass.test(current.className)){
returnElements.push(current);
}
}
return returnElements;
}

getElementsByClassName Delux Edition

GET it FROM http://muffinresearch.co.uk/archives/2006/04/29/getelementsbyclassname-deluxe-edition/

function getElementsByClassName(strClass, strTag, objContElm) {
 strTag = strTag || "*";
 objContElm = objContElm || document;
 var objColl = objContElm.getElementsByTagName(strTag);
 if (!objColl.length &&  strTag == "*" &&  objContElm.all) objColl = objContElm.all;
 var arr = new Array();
 var delim = strClass.indexOf('|') != -1  ? '|' : ' ';
 var arrClass = strClass.split(delim);
 for (var i = 0, j = objColl.length; i < j; i++) {
   var arrObjClass = objColl[i].className.split(' ');
   if (delim == ' ' && arrClass.length > arrObjClass.length) continue;
   var c = 0;
   comparisonLoop:
   for (var k = 0, l = arrObjClass.length; k < l; k++) {
     for (var m = 0, n = arrClass.length; m < n; m++) {
       if (arrClass[m] == arrObjClass[k]) c++;
       if (( delim == '|' && c == 1) || (delim == ' ' && c == arrClass.length)) {
         arr.push(objColl[i]);
         break comparisonLoop;
       }
     }
   }
 }
 return arr;
}

Javascript for updating one windows from another

window.onload = initWindows;

function initWindows() {
if (document.getElementById("childField")) {
document.getElementById("childField").onchange = updateParent;
}
else {
newWindow = window.open("child.html","newWin","status=yes,width=300,height=300");
}
}

function updateParent() {
opener.document.getElementById("msgLine").value = "Hello " + this.value + "!";
}

PHP DataTable Displaying and Paging

I have made a function to fetch data from database and show it in a HTML table. It's easy to use but hard to read. HTML text has been linked together.

function getResultAsTable ($actions, $result)
{
     if ($rowcount =pg_num_rows($result)>0)
     {
         $resultHTML= "<table border="'1'" align="'center'">\n<tr bgcolor="'#e8eefa'">\n";
        
         //Output the table header
         $fieldCount = pg_num_fields($result);
         for ($i=0; $i < $fieldCount; $i++)
         {
             $rowName = pg_field_name($result,$i);
             $resultHTML .= "<th valign="'middle'">$rowName</th>\n";
         }
        
        $resultHTML .= "<th>Actions</th></tr>\n";
    
        //output the table body
           while ($row = pg_fetch_row($result))
        {
             $resultHTML .="\n";
             for ($i=0; $i < $fieldCount; $i++)
             {
                $resultHTML .="<td>".htmlentities($row[$i])."</td>\n";
             }
            
               //Replace VALUE with proper primary key
             $action = str_replace("VALUE", $row[0], $actions);
             //Add action cell to the end of each row
             $resultHTML .= "<td>$action</td>\n</tr>\n";
            
         }
        
         //Close table
         $resultHTML .="</table>\n";
     }
     else
     {
         $resultHTML = "No Result Found";
     }
     return  $resultHTML;
}


function pageLinks($totalpages, $currentpage, $pagesize, $parameter)
{
// Start at page one
$page = 1;
// Start at record 0
$recordstart = 0;

// Initialize page links
$pageLinks = '';
while ($page <= $totalpages) {     
// Link the page if it isn't the current one     
 if ($page != $currentpage) {
   $pageLinks .= "<a href="http://www.blogger.com/%5C" 
  parameter="$recordstart\">$page</a> ";
      // If the current page, just list the number
  }
  else {
      $pageLinks .= "$page ";
  }
  // Move to the next record delimiter
  $recordstart += $pagesize;
  $page++;
}

return $pageLinks;
}