PHP - Creating A String For Base64 From In Memory Image?

Hi

I have an upload script which uploads an image then resizes

The error
Code: [Select]
Fatal error: Allowed memory size of 20971520 bytes exhausted (tried to allocate 7776 bytes) in Dir/UploadScript.php on line 234

The code function


 $strNewFileName = date("YmdHis").rand(0,5000).".".$this->strFileExt;
          
          $this->strNewFileName = $strNewFileName;
          $strDir = $_SERVER['DOCUMENT_ROOT'].$this->strSaveDir.$strNewFileName;
          $strTNDir = $_SERVER['DOCUMENT_ROOT'].$this->strSaveDir."tn_".$strNewFileName;
          
          move_uploaded_file($this->arrUploadFile['tmp_name'], $strDir);
          
          $image_p = imagecreatetruecolor($this->intNewWidth, $this->intNewHeight);
          
          switch($this->strFileExt){
              case "jpg":
                $image = imagecreatefromjpeg($strDir);
                break;
              case "gif":
                $image = imagecreatefromgif($strDir);
                break;
              case "png":
                $image = imagecreatefrompng($strDir);
                break;
          }
          
          imagecopyresampled($image_p, $image, 0, 0, 0, 0, $this->intNewWidth, $this->intNewHeight, $this->intCurWidth, $this->intCurHeight);
          
          
          
          
          $blnSuccessUpload = false;
          
          switch($this->strFileExt){
              case "jpg":
                if(imagejpeg($image_p, $strTNDir)){
                    $blnSuccessUpload = true;
                }
                break;
              case "gif":
                if(imagegif($image_p, $strTNDir)){
                    $blnSuccessUpload = true;
                }
                break;
              case "png":
                if(imagepng($image_p, $strTNDir)){
                    $blnSuccessUpload = true;
                }
          }
          imagedestroy($image_p);
          return $blnSuccessUpload;


the Line causing issues (234) is
Code: [Select]
                $image = imagecreatefromjpeg($strDir);


Now that image is created but the TN is not

//Edit
Just a note.
I have ini_set('memory_limit', 16MB);
if you notice the allocated memory is less than the memory allowed.

Can anyone help me with the following please.

Upon loading the page, I want to generate a random string based of the following...

Select one value from the following array
Code: [Select]
$categories = array("easy", "medium", "hard")And generate a random number from one to five.

The string would then look like hard1 or easy5 etc..

Then check if the string generated exists in the following session array
Code: [Select]
$_SESSION['asked']If not, add it to that array and continue, if it is, create a new random string and check if that one exists and loop until its found one that isn't.

Thank you in advance

I have a string (Product1-Product2-Product3#2-4-1) where Product1-Product2-Product3 are products and 2-4-1 are quantities. I am struggling to make a table out of it where products and quantities are shown in rows.

here is what i tried.

Code: [Select]
list($products, $quantities) = explode("#", $specs); //to separate Quantities from products

<?php foreach(preg_split("/-/", $products) as $product_list) { ?>
 
  <tr>
    <td> <?php echo $product_list; ?></td><? } ?> <?php foreach(preg_split("/-/", $quantities) as $qtylist) { ?>   <td></td>
    <td><?php echo $qtylist; ?></td> <?php } ?>
  </tr>

  <?php //} ?>
</table>
 
I know something is wrong with this and its giving me unexpected reasult

Please help me create a table out of the above string.

Many Thanks
-Max

I have implemented the base64_encode() function with some custom  mapping table so I could encode some binary data more securely without anyone knowing how to decode it

here is the class

<?php 

class Base64 {
    
    /**
     * I have changed letter placement (P <=> x, S <=> 9) and the cases
     * You can completely redo the mapping table
     */

    private static $BinaryMap = array(
        'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', //  7
        'i', 'j', 'k', 'l', 'm', 'n', 'o', 'x', // 15
        'q', 'r', '9', 't', 'u', 'v', 'w', 'x', // 23
        'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', // 31
        'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', // 39
        'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', // 47
        'W', 'P', 'Y', 'Z', '0', '1', '2', '3', // 55
        '4', '5', '6', '7', '8', 'S', '+', '/', // 63 
        '=',  // padding char
    );
    
    public function __construct() {}
    
    public function base64_encode($input) {
        
        $output = "";
        $chr1 = $chr2 = $chr3 = $enc1 = $enc2 = $enc3 = $enc4 = null;
        $i = 0;
        
//        $input = self::utf8_encode($input);
        
        while($i < strlen($input)) {
            $chr1 = ord($input[$i++]);
            $chr2 = ord($input[$i++]);
            $chr3 = ord($input[$i++]);
            
            $enc1 = $chr1 >> 2;
            $enc2 = (($chr1 & 3) << 4) | ($chr2 >> 4);
            $enc3 = (($chr2 & 15) << 2) | ($chr3 >> 6);
            $enc4 = $chr3 & 63;
            
            if (is_nan($chr2)) {
                $enc3 = $enc4 = 64;
            } else if (is_nan($chr3)) {
                $enc4 = 64;
            }
            
            $output .=  self::$BinaryMap[$enc1]
                      . self::$BinaryMap[$enc2]
                      . self::$BinaryMap[$enc3]
                      . self::$BinaryMap[$enc4]; 
        }
        
        return $output;
    }
    
    public function utf8_encode($input) {
        $utftext = null;
        
        for ($n = 0; $n < strlen($input); $n++) {

            $c = ord($input[$n]);
            
            if ($c < 128) {
                $utftext .= chr($c);
            } else if (($c > 128) && ($c < 2048)) {
                $utftext .= chr(($c >> 6) | 192);
                $utftext .= chr(($c & 63) | 128);
            } else {
                $utftext .= chr(($c >> 12) | 224);
                $utftext .= chr((($c & 6) & 63) | 128);
                $utftext .= chr(($c & 63) | 128);
            }
        }
        
        return $utftext;
    }
}

?>

and the usage as follows:

<?php
$string = pack('H*', "31c85c5aaa56c1f0102301ea497d0ab010e4e131af261787"); //HEX

echo Base64::base64_encode($string);
echo "<br />";
echo base64_encode($string);
?>

and the output will be:

mCHCwQPwWFaqiWhQ9x0kSbdK4tgVjHEh   //  with custom mapping
MchcWqpWwfAQIwHqSX0KsBDk4TGvJheH   //  the base64_encode() 



I need help how to decode the this key

Hi, Im trying to use base64_decode on a string, however the string is sometimes plain text others its encoded, how can i test to see if the sting is encoded or plaintext and only perform the decode if the string is indeed encoded? Im pretty new to PHP, but ive seen mentions of regex or preg_match for certain characteristics of base64 encoded, my one observation is it usually ends in == which wouldnt appear in my plain text, could i do a preg match for that?

url("data:image/png;base64,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") 

How do I go about decoding this, it contains a number of different images 

I have just installed a new theme for my site at JamesGeddes.com however I want to edit the php footer file

This, however, is coded in base64; fine for browsers, not so great for people!

The file is at

http://jamesgeddes.com/wp-content/themes/techno/footer.php

but so that you can look at it I have copied the contents to a text file

http://jamesgeddes.com/wp-content/themes/techno/txt/footer.txt

How can I turn this base64 nonsense in to normal PHP code?

Thanks for your help!

James

Hi guys,

I'm parsing a bunch of html sources, some of them (a minority) contain base64 encoded URLs. At least 20-30 URLs per page. Some of the information I need is taken from the URLs.

I'm looking for a way to parse these URLs without losing too much time (20-30 URLs per page and I need to parse about 10k pages daily).

Should I regex each source individually for base64 encoded URLs and then decode them each time and isn't that going to take a lot of time/resources (especially considering it's only a minority that have the base64 URLs in them)? Or is there a better way to do it?

Code snippets are absolutely welcome!

Thank you in advance

I want to add some text onto an image.
Sometimes I either get nothing returned or I get a shit load of garbage returned. Garbage in the form of little question mark symbols and other crap like that.

PHP File - show Tickets
Code: [Select]
include("createImage.php");

while( $row = mysql_fetch_array( $r ) ){
         echo generateTicket( $row['ticketNumber'] ) . "<br /><br />";
}

PHP - createImage.php
Code: [Select]
<?
header("Content-type: image/jpeg");

function generateTicket( $ticketNum ){

$imageFile = "images/ticket.jpeg";

if( file_exists( $imageFile ) ){

$im = @imagecreatefromjpg( $imageFile );

$text_color = imagecolorallocate( $im, 0, 0, 0 );

imagestring( $im, 6, 25, 150, $ticketNum, $text_color );
 
imagejpeg( $im );
}else
echo 'error';
}

?>

Hi,

I need help in my code. I have written a CAPTCHA code, but it is not appearing when I test run in my website. My code is below, could anyone highlight to me my error? Any problems to those that were highlighted in red? Thanks

<?php
  session_start();

  // Set some important CAPTCHA constants
  define('CAPTCHA_NUMCHARS', 6);  // number of characters in pass-phrase
  define('CAPTCHA_WIDTH', 100);   // width of image
  define('CAPTCHA_HEIGHT', 25);   // height of image

  // Generate the random pass-phrase
  $pass_phrase = "";
  for ($i = 0; $i < CAPTCHA_NUMCHARS; $i++) {
    $pass_phrase .= chr(rand(97, 122)); //chr(), convert a number to its ASCII character equivalent
  }

  // Store the encrypted pass-phrase in a session variable
  $_SESSION['pass_phrase'] = SHA($pass_phrase);

  // Create the image
  $img = imagecreatetruecolor(CAPTCHA_WIDTH, CAPTCHA_HEIGHT);

  // Set a white background with black text and gray graphics
  $bg_color = imagecolorallocate($img, 255, 255, 255);     // white
  $text_color = imagecolorallocate($img, 0, 0, 0);         // black
  $graphic_color = imagecolorallocate($img, 64, 64, 64);   // dark gray

  // Fill the background
  imagefilledrectangle($img, 0, 0, CAPTCHA_WIDTH, CAPTCHA_HEIGHT, $bg_color);

  // Draw some random lines
  for ($i = 0; $i < 5; $i++) {
    imageline($img, 0, rand() % CAPTCHA_HEIGHT, CAPTCHA_WIDTH, rand() % CAPTCHA_HEIGHT, $graphic_color);
  }

  // Sprinkle in some random dots
  for ($i = 0; $i < 50; $i++) {
    imagesetpixel($img, rand() % CAPTCHA_WIDTH, rand() % CAPTCHA_HEIGHT, $graphic_color);
  }

  // Draw the pass-phrase string
  imagettftext($img, 18, 0, 5, CAPTCHA_HEIGHT - 5, $text_color, 'Courier New Bold.ttf', $pass_phrase);

  // Output the image as a PNG using a header
  header("Content-type: image/png");
  imagepng($img);

  // Clean up
  imagedestroy($img);
?>

Hello,   I have a website called http://flappycreator.com/ where users can upload multiple images to create their own version of Flappy Bird.  As a result of this I created a PHP page that takes a GET param to create a preview image of their game to display in various locations on the website.   Here is an example: http://flappycreator...d=5305a9ad9dc30 http://flappycreator...d=5305a9ad9dc30 http://flappycreator...d=5305a9ad9dc30   My issue is, I have given my users the ability to upload PNGs or JPGs and trying to figure out reliable code to display the preview has become a huge hassle.  In the example above the Pac-Man character shows a white background but when you play the game, it is actually transparent.  In other situations I am getting extremely bad color distortion.  The code I have provided is my final attempt after a ton of trial-and-error and the PNG imagealphablending() and imagesavealpha() commands have shown me the best results, however I don't know what they do.   Please help!  Thanks.

<?php

$bird_picture = "default/bird.png";
$tube1_picture = "default/tube1.png";
$tube2_picture = "default/tube2.png";
$ground_picture = "default/ground.png";
$bg_picture = "default/bg.png";

// If an id is set, then reset values
if (isset ( $_GET ['id'] )) {

	require ('XXX.php');
	$db = new DBAccess ();

	$query = "SELECT * FROM XXX WHERE XXX = '{$_GET['id']}'";
	$result = $db->query ( $query );
	$num_results = $result->num_rows;
	$row = mysqli_fetch_array ( $result );

	if ($num_results != 0) {
		if ($row ['bird_picture'] != "") {
			$bird_picture = "instances/" . $row ['folder_dir'] . "/" . $row ['bird_picture'];
		}

		if ($row ['tube1_picture'] != "") {
			$tube1_picture = "instances/" .$row ['folder_dir'] . "/" . $row ['tube1_picture'];
		}

		if ($row ['tube2_picture'] != "") {
			$tube2_picture = "instances/" .$row ['folder_dir'] . "/" . $row ['tube2_picture'];
		}

		if ($row ['ground_picture'] != "") {
			$ground_picture = "instances/" . $row ['folder_dir'] . "/" . $row ['ground_picture'];
		}

		if ($row ['bg_picture'] != "") {
			$bg_picture = "instances/" . $row ['folder_dir'] . "/" . $row ['bg_picture'];
		}
	}
}

$temp = explode(".", $bg_picture);
$extension = end($temp);
if ($extension == "jpeg" || $extension == "jpg") {
	$background = imagecreatefromjpeg($bg_picture);
} else {
	$background = imagecreatefrompng($bg_picture);
	// Turn off alpha blending and set alpha flag
	imagealphablending($background, true);
	imagesavealpha($background, true);
}

$temp = explode(".", $ground_picture);
$extension = end($temp);
if ($extension == "jpeg" || $extension == "jpg") {
	$ground = imagecreatefromjpeg($ground_picture);
} else {
	$ground = imagecreatefrompng($ground_picture);
	// Turn off alpha blending and set alpha flag
	imagealphablending($ground, false);
	imagesavealpha($ground, true);
}

$temp = explode(".", $bird_picture);
$extension = end($temp);
if ($extension == "jpeg" || $extension == "jpg") {
	$bird = imagecreatefromjpeg($bird_picture);
} else {
	$bird = imagecreatefrompng($bird_picture);
	// Turn off alpha blending and set alpha flag
	imagealphablending($bird, false);
	imagesavealpha($bird, true);
}

$temp = explode(".", $tube1_picture);
$extension = end($temp);
if ($extension == "jpeg" || $extension == "jpg") {
	$tube1 = imagecreatefromjpeg($tube1_picture);
} else {
	$tube1 = imagecreatefrompng($tube1_picture);
	// Turn off alpha blending and set alpha flag
	imagealphablending($tube1, false);
	imagesavealpha($tube1, true);
	
}

$temp = explode(".", $tube2_picture);
$extension = end($temp);
if ($extension == "jpeg" || $extension == "jpg") {
	$tube2 = imagecreatefromjpeg($tube2_picture);
} else {
	$tube2 = imagecreatefrompng($tube2_picture);
	// Turn off alpha blending and set alpha flag
	imagealphablending($tube2, false);
	imagesavealpha($tube2, true);
}

imagecopymerge($background, $tube1, 200, -200, 0, 0, 52, 320, 100);
imagecopymerge($background, $tube2, 200, 200, 0, 0, 52, 320, 100);
imagecopymerge($background, $ground, 0, 320, 0, 0, 336, 112, 100);
imagecopymerge($background, $bird, 70, 190, 0, 0, 36, 26, 100);


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

# Destroy
imagedestroy($background);
imagedestroy($ground);
imagedestroy($bird);
imagedestroy($tube1);
imagedestroy($tube2);

?>

Attached Files  preview.php   3.31KB   1 downloads

Hey all, I'm trying to upload multiple image(which works great) but the problem I'm having is when an image is uploaded it over-rights a previous image if they are the same name and the old one is gone. Solution: create a unique name for each image before it's uploaded, change the name and then upload it. I can't seem to figure the correct syntax. My thought was to take the image name and add a random number to the front of it. Am i going about this the right way? thanks for the replies in advance. code below

Code: [Select]

if (isset($_POST['Submit'])) {

    $number_of_file_fields = 0;
    $number_of_uploaded_files = 0;
    $number_of_moved_files = 0;
//creating my random number
     $random_digit=rand(0000,9999);
     $uploaded_files = array();
     $upload_directory = dirname(__file__) . '/car-images/'; //set upload directory
 
    for ($i = 0; $i < count($_FILES['images']['name']); $i++) {
        $number_of_file_fields++;
        if ($_FILES['images']['name'][$i] != '') { //check if file field empty or not
            $number_of_uploaded_files++;
            $uploaded_files[] = $_FILES['images']['name'][$i];
            if (move_uploaded_file($_FILES['images']['tmp_name'][$i], $upload_directory . $_FILES['images']['name'][$i])) {
                $number_of_moved_files++;
            }

        }

    }


$image0 = $uploaded_files[0];
$image1 = $uploaded_files[1];
$image2 = $uploaded_files[2];
$image3 = $uploaded_files[3];
$image4 = $uploaded_files[4];

Been just trying to test out some basic code that utilizes gd.  In Chrome i receive a blank page.  In firefox I get "The image "image.php" cannot be displayed because it contains errors".  There is no whitespace before or after the php tags, which seems to cause this error sometimes. 
 
$image = imagecreate(200,20);
$background = imagecolorallocate($image, 0, 0, 0);
$foreground = imagecolorallocate($image,255,255,255);
imagestring($image, 5, 5, 1, "Test", $foreground);
header("Content-type: image/jpeg");
$imagejpeg($image);

I am just following a tutorial, and at this point in the tutorial i should get at least some garbled text, if not an image.

I looked at other common causes.  gd2 is un-commented in php.ini.

phpinfo shows:
GD Support   enabled
GD Version   bundled (2.0.34 compatible)
FreeType Support   enabled
FreeType Linkage   with freetype
FreeType Version   2.4.3
GIF Read Support   enabled
GIF Create Support   enabled
JPEG Support   enabled
libJPEG Version   6b
PNG Support   enabled
libPNG Version   1.2.46
WBMP Support   enabled
XBM Support   enabled
gd.jpeg_ignore_warning  0   0

I have not found any other solutions to try, or maybe I have made an error is checking these solutions.  Any advice with be great!  Thank you for your time.

Hi there

I've been working with some code to display a single
record on page. This all works fine and I'm able to pull what I
want from the database. My problems is trying to use that
data and turning it into something else like a link.

I have a field in the database called image url which
contains rows of image urls.

So here is the problem area of the code:

Code: [Select]
<?php
//////Displaying Data/////////////
$id=$_GET['id']; // Collecting data from query string
if(!is_numeric($id)){ // Checking data it is a number or not
echo "Data Error";
exit;
}

$fetch=mysql_query("select * from productfeeds where ProductID=$id ");
$row=mysql_fetch_object($fetch);
echo mysql_error();
echo "<table>";
echo "
<tr><td><b>ProductID</b></td><td>$row->ProductID</td></tr>
<tr><td><b>ProductName</b></td><td>$row->ProductName</td></tr>
<tr><td><b>ProductPrice</b></td><td>$row->ProductPrice</td></tr>

//problem area for me
<tr><td><b>Image</b></td><td>$row->ImageURL</td></tr>
echo "</table>";
I'm trying to edit this part of the code:

<tr><td><b>Image</b></td><td>$row->ImageURL</td></tr>

I've tried this:

<tr><td><b>Image</b></td><td><a href='{$row['URL']}'> <img src='{$row['ImageURL']}'></a>

and

<tr><td><b>Image</b></td><td><a href='$row['URL']'> <img src='$row['ImageURL']'></a>  //removed brackets

but I'm just getting errors. Can you guys help please?

Thank you very much.

Hello Forums,
So basically I am trying to place text over an image.
It works but the max text size is 5 which is way too small for my needs!
What can I do to increase the size of the text? 
If anyone can help it would be much appreciated.
 
Here is my code:
Code: [Select]
<?php
  $title = $_REQUEST['title'] ;   
$my_img = imagecreatefrompng ( "Template.png" );
$text_color = imagecolorallocate( $my_img, 0, 0, 0 );
imagestring( $my_img, 5, 30, 25, "$title",
  $text_colour );
header( "Content-type: image/png" );
imagepng( $my_img );
imagecolordeallocate( $text_color );
imagedestroy( $my_img );
 ?>