PHP - Imagerotate() Removing Transparency

Hey guys i am currently working on a thumbnail script. The idea is to be able to resize any image on the fly by adding some parameters to the images url ex: thisimage.jpg~160x160 It's then picked up by an htaccess rule that sends it to a php script that resize the image and returns it using the GD library. The script is working great but got a problem keeping the transparency with PNG images ... What ever i do the resized image has a black background. I tryed all sorts of things but it's just not working ... can anybody help me understand where i got it wrong?

// [......]

        // Create output image
        $outImg = imagecreate ($outWidth, $outHeight);
        
        // Load src image
        switch($srcType) {
            case "png":
                $srcImg = imagecreatefrompng($uri);
                $background = imagecolorallocate($srcImg, 255, 255, 255);
                imagecolortransparent($srcImg, $background);
                imagealphablending($srcImg, true);
                imagesavealpha($srcImg, true);
                break;
            case "gif":
                $srcImg = imagecreatefromgif($uri);
                break;
            case "jpeg":
                $srcImg = imagecreatefromjpeg($uri);
                break;
            default: 
                diewith("unsupported file type '$uri'");
        };

        // Resize image
        imagecopyresampled($outImg, $srcImg, 0, 0, 0, 0, $outWidth, $outHeight, $srcWidth, $srcHeight);

// [......]

I have a transparency color set up with my GD script.  It makes the image semi transparent with an ugly border.  Any tips or Hints?
Page:  http://www.zeldadungeon.net/Justin/miniheros/test.php
Code: [Select]
<?
$bg = imagecreatefrompng('http://i241.photobucket.com/albums/ff279/tiger_leo/reddraft.png');

$color = imagecolorallocate($bg, 168, 97, 97);

$font = './BOOKOS.TTF';

$insert = imagecreatefrompng('http://i241.photobucket.com/albums/ff279/tiger_leo/heartdraft.png');
imagealphablending($insert, true);
imagesavealpha($insert, true);

 
$xOffset = 20;   $yOffset = 20;

imagecolortransparent($insert, $color);

$insert_x = imagesx($insert); $insert_y = imagesy($insert); 

header('Content-Type: image/png');

imagecopymerge($bg,$insert,$xOffset,$yOffset,0,0,$insert_x,$insert_y,100);

imagepng($bg);
imagedestroy($bg); 

?>

I have the below code that outputs my image correctly expect it puts a black background in it, instead of keeping it transparent.  I'm tried using imagealphablending and couldn't get it to work.  What should I use to get it to work correctly and where should I put it.


$src = imagecreatefrompng($target);
echo $scr;
list($width,$height)=getimagesize($target);
$newwidth=54; // new width of image
$newheight=54;
$tmp=imagecreatetruecolor($newwidth,$newheight);
imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height);
$image1 = imagecreatefrompng('Surround.png');
imagecopymerge($image1, $tmp, 5, 5, 0, 0, 54, 54, 100);

This is what my gd script output looks like, the black needs to be transparent

I am having difficulty keeping transparency on my png resizing function.  I have searched all around and tried various solutions.  However, all I keep getting is a black background.  Everything else about the function is working fine.  Any help would be appreciated.

Here is the code for transparency that isn't working:
Code: [Select]
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);
imagealphablending($dst_img,false);
imagesavealpha($dst_img,true);
$transparent = imagecolorallocatealpha($dst_img, 255, 255, 255, 127);
imagefilledrectangle($dst_img, 0, 0, $thumb_w, $thumb_h, $transparent);
imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);
Here is the full function code:
Code: [Select]
function createthumb($name,$filename,$new_w,$new_h)
{
$system=explode(".",$name);
if (preg_match("/jpg|jpeg/",$system[1]))
{
$src_img=imagecreatefromjpeg($name);
}
if (preg_match("/png/",$system[1]))
{
$src_img=imagecreatefrompng($name);
}
$old_x=imageSX($src_img);
$old_y=imageSY($src_img);
if ($old_x > $old_y)
{
$thumb_w=$new_w;
$thumb_h=$old_y*($new_h/$old_x);
}
if ($old_x < $old_y)
{
$thumb_w=$old_x*($new_w/$old_y);
$thumb_h=$new_h;
}
if ($old_x == $old_y)
{
$thumb_w=$new_w;
$thumb_h=$new_h;
}
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);
imagealphablending($dst_img,false);
imagesavealpha($dst_img,true);
$transparent = imagecolorallocatealpha($dst_img, 255, 255, 255, 127);
imagefilledrectangle($dst_img, 0, 0, $thumb_w, $thumb_h, $transparent);
imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);

if (preg_match("/png/",$system[1]))
{
imagepng($dst_img,$filename);
} else {
imagejpeg($dst_img,$filename);
}
imagedestroy($dst_img);
imagedestroy($src_img);
}

So basically I have two lines that generate an image from png and then preserve the transparency of said png.
Code: [Select]
$bub1 = imagecreatefrompng ("Energy/$energy1b.png");

imageSaveAlpha($bub1, true);This works by itself when generating just this image.
But when combined with another image:
Code: [Select]
imagecopymerge($image, $bub1, 680, 40, 0, 0, 50, 50, 100);It fills in the back ground around the image and the transparency is not preserved. 
Why is this and how can i fix it?

I have tried many solution, but nothing seems to fix this.
The problem is that i put an image with transparency on top of another image, but the transparent pixels still transparent, where they should show some of the image below it.

If you call it with l=100 and p=20 i would get this result http://cl.ly/566Z instead of this http://cl.ly/56OF.

Here is the source code and I have attached the images:
Code: [Select]
<?php
header('Content-type: image/png');
echo imagepng(progressbar($_GET['l'], $_GET['p']));
function progressbar($length, $percentage)
{
$length = round($length / 2) * 2;
$percentage = min(100, max(0, $percentage));
if($length > 0)
{
$bar = imagecreate($length, 14);
imagealphablending($bar, false);
imagesavealpha($bar, true);
$empty = imagecreatefrompng('Empty.png');
imagealphablending($empty, false);
imagesavealpha($empty, true);
$fill = imagecreatefrompng('Fill.png');
imagealphablending($fill, false);
imagesavealpha($fill, true);
$lempty = imagecreatefrompng('LeftEmpty.png');
imagealphablending($lempty, false);
imagesavealpha($lempty, true);
$lfill = imagecreatefrompng('LeftFill.png');
imagealphablending($lfill, false);
imagesavealpha($lfill, true);
$rempty = imagecreatefrompng('RightEmpty.png');
imagealphablending($rempty, false);
imagesavealpha($rempty, true);
$rfill = imagecreatefrompng('RightFill.png');
imagealphablending($rfill, false);
imagesavealpha($rfill, true);
$emptycaplength = min(7, $length / 2); //5 
imagecopy($bar, $lempty, 0, 0, 0, 0, $emptycaplength, 14);
imagecopy($bar, $rempty, $length - $emptycaplength, 0, 7 - $emptycaplength, 0, $emptycaplength, 14);
if($length > 14)
{
imagecopyresized($bar, $empty, 7, 0, 0, 0, $length - 14, 14, 1, 14);
}
$filllength = round(($length * ($percentage / 100)) / 2) * 2;
$fillcaplength = min(7, $filllength / 2);
imagecopy($bar, $lfill, 0, 0, 0, 0, $fillcaplength, 14);
imagecopy($bar, $rfill, $filllength - $fillcaplength, 0, 7 - $fillcaplength, 0, $fillcaplength, 14);
if($filllength > 14)
{
imagecopyresized($bar, $fill, 7, 0, 0, 0, $filllength - 14, 14, 1, 14);
}
imagealphablending($bar, true);
return $bar;
}
else
{
return false;
}
}
?>

I have the following code, works rotates the image. But it seems to lose its transparency and add color when rotated to say 45. How can I avoid this?


// File and rotation
$filename = 'placeholder.png';
$degrees = 45;

// Content type
header('Content-type: image/png');

// Load
$source = imagecreatefrompng($filename);


// Rotate
$rotate = imagerotate($source, $degrees, 0);

// Output
imagepng($rotate);
?>

Hey guys, im using UNIX time and trying to figure out how to remove the leading 0 when it shows the hour. "07:06 am" to make it read "7:06 am"

manual says i need to use %i with strftime. So I guess Im suppose to be removing the zero before the date format? which is why strftime isnt working after the date function. Or is there a way to do this in the date function.

                   $time = 1327493219;

date_default_timezone_set('UTC');

            $user_offset = date('h:i a  M/d', $time);

echo "<td>". strftime("%l",$user_offset) ."</td>"; 

Hi,

May I know how can I remove all characters after the first 3 characters after .

e.g : 123.512645124

I want to maintain 123.512 without rounding up.

Please advise and thanks. I wanted to use strstr and trim functions but I am not able to use it to get what I want.. can some guru please assist .. thanks again

Hi all,

I am new to PHP and MySQL and I am expierencing an issue which i need help with. I am creating a pupil record system for an assignment in Uni. we have been given some sample code and we have to build onto this and finish the system.

I have created an add a student page and when the student is added I want to move to the next page and then display the record that has been added (see image below)



Also see code below

Code: [Select]
<?php
print "<H2>Thank you, <i>";
print $_POST['firstname'];
print "&nbsp;";
print $_POST[ 'surname'];
print "</i> has been sucessfully added to the system.</H2>";
print "<a href=\"add_student.php\"><h4>Add Another Student</h4></a>";
 
function doquery($query) {

$db = "prs";
$link = mysql_connect("localhost","..........","........")
     or die("Could not connect to server! Error: ".mysql_error());
  
mysql_select_db($db,$link)
     or die("Could not select $db! Error: ".mysql_error());
   $result = mysql_query($query,$link)
     or $result = "Query Error!<p>Query: $query<p>Error: ".mysql_error();
   mysql_close($link);
  return($result);
}
  
  $firstname="'".$_POST['firstname']."'";
  $surname="'".$_POST['surname']."'";
  $address1="'".$_POST['address1']."'";
  $address2="'".$_POST['address2']."'";
  $town="'".$_POST['town']."'";
  $county="'".$_POST['county']."'";
  $postcode="'".$_POST['postcode']."'";
  $phone="'".$_POST['phone']."'";
  $email="'".$_POST['email']."'";
  $class_set="'".$_POST['class_set']."'";
  $query = "SELECT MAX(upn) + 1 as upn FROM students";
  $result = doquery($query); 
  $row = mysql_fetch_array($result);
  
  $upn = $row['upn'];
      
  $query = "INSERT INTO students (upn, firstname, surname, address1, address2, town, county, postcode, phone, email, class_set) VALUES ($upn, $firstname, $surname, $address1, $address2, $town, $county, $postcode, $phone, $email, $class_set)";
  doquery($query);
  
     echo 
    "<table width=\"350px\" border=\"1\" cellspacing=\"0\" cellpadding=\"5\" bordercolor=\"#de5f57\" align=\"center\">
  <tr>
    <td colspan=\"2\"><h3>Recorded Added</h3></td>
    </tr>
  <tr>
    <td width=\"150px\" class=\"form_labels\">Student Number</td>
    <td width=\"300px\" class=\"table_data\">".$upn."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">First Name</td>
    <td class=\"table_data\">".$firstname."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Surname</td>
    <td class=\"table_data\">".$surname."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Address 1</td>
    <td class=\"table_data\">".$address1."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Address 2</td>
    <td class=\"table_data\">".$address2."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Town</td>
    <td class=\"table_data\">".$town."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">County</td>
    <td class=\"table_data\">".$county."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Postcode</td>
    <td class=\"table_data\">".$postcode."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Phone Number</td>
    <td class=\"table_data\">".$phone."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Email</td>
    <td class=\"table_data\">".$email."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Class</td>
    <td class=\"table_data\">".$class_set."</td>
  </tr>
</table>";
  
?>

What I want to do is simple:
The string "this_is_an_example.php"

should return "this_is_an_"

while:
"this_is_an_example_filename.php
should return "this_is_an_example_"

Is there a simple function which can cut off the part after the last _ ?
I have been looking and trying several functions, but can't seem to find the right one for this.

(the last _ being cut off of course wouldn't be a problem I couldn't live with :-) )

Any help will be greatly appreciated!

Last question for the week now. Almost finished.

All I need to do is:

Remove characters from the beginning and the end of a string.

Essentially:

Code: [Select]
a:4:{s:4:"full";s:111:"http://www.mothernatureinc.co.uk/wp-content/uploads/2011/02/166637_482678026567_509616567_6394964_6868412_n.jpg";i:96;s:117:"http://www.mothernatureinc.co.uk/wp-content/uploads/2011/02/166637_482678026567_509616567_6394964_6868412_n-96x96.jpg";i:60;s:117:"http://www.mothernatureinc.co.uk/wp-content/uploads/2011/02/166637_482678026567_509616567_6394964_6868412_n-60x60.jpg";i:32;s:117:"http://www.mothernatureinc.co.uk/wp-content/uploads/2011/02/166637_482678026567_509616567_6394964_6868412_n-32x32.jpg";}
Needs to become

Code: [Select]
http://www.mothernatureinc.co.uk/wp-content/uploads/2011/02/166637_482678026567_509616567_6394964_6868412_n.jpg
Any ideas?

How can I remove certain string from a statement. For example: A blagh blah blah blah blah. http://blah.com

Where I would want to remove everything from "http" and after. So the final statement would show as: A blagh blah blah blah blah.

Hi

I want this URL:

php.net/manual/en/function.explode.php

to become

php.net

using php ..

I tried with the explode fuction but couldnt get it to work ...
list ($finalurl, $blabla) = explode('/', $url);

Anyone have any tips?

Thanks in advance

Hy guys

I try to rebuild a PTC site
The thing is when the member is click on the ad, they get money after x sec.

I have the code, and the question is how i can remove the top frame,  but i would like to keep the money part. So when they open a link its will looks a normal link no frame no timer but they still get the monye after x second. Can i do this??

The code is he
<?
session_start();
/**********************************************************************************************************************************************



ScriptBux Version 2.50 beta



This Script has been created and coded by Gabrola and edited by hassan ahmady.



If you find any bugs in the script report at support@thealternatif.info or contact hassan ahmady.



Copywrite ScriptBux 2008;



Please make donations if you use this sript for commercial use



to My paypal account "bisnis-usd@plasa.com"
************************************************************************************************************************************************/

require('config.php');
global $c;
require('data.php');
global $config;
require('funciones.php');
$adse=securedata($_GET["ad"]);

if(isset($_GET['example']))
{
die("<body bgcolor='#FFFFFF'></body>");
}
if(!$_GET['ad'])
{
die("<b>Error</b> - You need the advertisement ID.");
}
if(!isset($_COOKIE["usNick"]) && !isset($_COOKIE["usPass"]))
{
      $sqlz = "SELECT * FROM ads WHERE ad_id='$adse'";
      $resultz = mysql_query($sqlz);        
      $myrowz = mysql_fetch_array($resultz);

  if(!$loggedin)
 {
 $numero=$myrowz["outside"];

      $sqlex = "UPDATE ads SET outside=outside +'1' WHERE ad_id='$adse'";
      $resultex = mysql_query($sqlex);
 }
}


$checkad = mysql_query("SELECT * FROM ads WHERE ad_id='$adse'");
$ad_exist = mysql_num_rows($checkad);

if ($ad_exist<1) {
echo "You can only click an ad once every 24 hours."; exit();
}

$ad = mysql_fetch_array($checkad);
?>
<html>
<head>
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Expires" content="-1">
<title><?=$config["title"]?></title>

<script>
<?php 
if ($r["account"]=="premium") {
?>
var x = <?=$config['pro_click'] + 1; ?>;
<?php } else { ?>
var x = <?=$config['free_click'] + 1; ?>;
<?php } ?>
var y = 1;
function startClock() {



if (x !== 'Done') {





x = x-y;





document.frm.clock.value = x;





setTimeout("startClock()", 1000);



}



if (x == 0) {





x = 'Done';





document.frm.clock.value = x;
               var code = "<?php
if($loggedin==1)
{
$site_code = md5(time().sha1(microtime()));
} else {
$site_code = "Not Login";
}
$_SESSION["adcode"] = $site_code;
print($site_code);

?>";
               var ad= "<?=$_GET['ad']?>";



success.location.href="success.php?ad="+ad+"&code="+code+"&verify=1";



}
}
</script>

</head>
<body leftmargin="0" rightmargin="0" topmargin="0" bottommargin="0" onLoad="startClock()">
<form name="frm">



<table border="0" cellpadding="0" cellspacing="0" width="100%">





<tbody>







  <tr> 









<td class="maintopright" style=" background:url(images/adloading.gif) no-repeat 150px;border-bottom: 2px solid rgb(51, 51, 51); font-family: Verdana; font-size: 13px;" width="50%">







  <div class="maintopright">&nbsp;&nbsp;<img src="images/top_small.jpg" align="middle" />&nbsp;&nbsp;&nbsp;&nbsp;







  <input name="clock" size="3" readonly="readonly" style="border: medium none ; padding: 0pt; font-size: 25pt; font-family: Verdana; vertical-align: top;" type="text">







  <iframe name="success" src="view.php?example" border="0" framespacing="0" marginheight="0" marginwidth="0" vspace="0" hspace="0" style="vertical-align: top;" frameborder="0" height="48" scrolling="no" width="48"></iframe>







  </div>







</td>







<td style="border-bottom: 2px solid rgb(51, 51, 51); font-family: Verdana; font-size: 13px; " align="left" valign="middle" width="50%">
<strong>Please take the time to visit the sponsor below.<br>
Show your website below for only <a href="index.php?option=advertise" target="_blank">$<?=$rowz1["price"]?></a> per 100 views!</strong>



 </td>





</tr>





  </tbody>





 </table>





 <iframe src="<?=$ad["ad_url"]?>" border="0" framspacing="0" marginheight="0" marginwidth="0" vspace="0" hspace="0" frameborder="0" height="100%" scrolling="yes" width="100%"></iframe>





</form>







</body>
</html>