PHP - Image Cropping

The script for creating a new file name for the image:

        $validextensions = array("jpeg", "jpg", "png");  //Extensions which are allowed
        $ext = explode('.', basename($_FILES['file']['name'][$i]));//explode file name from dot(.) 
        $file_extension = end($ext); //store extensions in the variable

        $new_image_name = md5(uniqid()) . "." . $ext[count($ext) - 1];
		$target_path = $target_path . $new_image_name;//set the target path with a new name of image

The script creates a new file like:

f6c9b8d9db05366c3504210cded9ddb2.jpg

and moves the file to the "uploads" folder. And then the script also creates a thumbnail with the same file name and moves the file to the "thumbs" folder.   The issue I am having is that the same ID code could happen again for a different image in the database, thus I would be calling a different original sized image than the thumbnail image.   My question is: How to avoid this issue of the same ID code has happened again for a different file. What is the proper way to reference the anchor tag of the thumbnail image to its actual original sized image?   With the script I have the thumbnail image would be coming from the "thumbs" folder and the anchor tag would get referenced to the "uploads" folder to get the original sized image.
Edited by glassfish, 12 October 2014 - 05:51 AM.

Hi, I've read a lot of places that it's not recommended to store binary files in my db.
So instead I'm supposed to upload the image to a directory, and store the link to that directory in database.

First, how would I make a form that uploads the picture to the directory (And what kinda directories are we talking?).

Secondly, how would I retrieve that link? And I guess I should rename the picture..

I'd appreciate any help, or a good tutorial (Haven't found any myself).

This topic has been moved to mod_rewrite.

http://www.phpfreaks.com/forums/index.php?topic=351137.0

Hello,
I've had success creating a cool vanity QR code with rounded edges for my organization by generating a standard QR code, then applying a noise -> median effect in Photoshop to get the edges rounded among some other effects.



Photoshop is great, but I want to automate this. I found a great PHP library to generate QR codes. The part I don't get is the rounding of the hard edges.

I've seen other sites do it like this one.

So far google searches are yielding rounded corner tutorials. Any thoughts on how to do this with GD or ImageMagic?

Best regards,

Chris

Would like to be able to click on a radio button that represents an image. Once selected and submitted, have that image display on another page. I have an idea, but need some guidance.

BTW, is using php only doable? Is there a simpler or more elegant way to do this?

Thanks all!

Hello,
Five images will be displayed inside a division.
There will be a previous and next button/link.
If someone click the next button the next image will be added in that div and the first image will be gone from that div.
The previous button/link will do the same thing.

Is it possible with php?
I am confused if it's a javascript or ajax question.

Thanks.

Hello

I am having problems uploading an image through a HTML form. I want the image to be uploaded to the server and the image name to be written to the mysql database.

Below is the code I am using:
Code: [Select]
<?php
if (isset($_POST['add'])){
   
   echo "<br /> add value is true";
      $name = $_POST['name'];   
      $description = $_POST['description'];   
      $price = $_POST['price'];
      $category_id = $_POST['category_name'];
      $image = $_FILES['image']['name'];   
      
      //file path of the image upload
      $filepath = "../images/";
      //mew name for the image upload
      $newimagename = $name;
      //new width for the image
      $newwidth = 100;
      //new height for the image
      $newheight = 100;
      
      include('../includes/image-upload.php');
      
      
      mysql_query("INSERT INTO item (item_name, item_description, item_price, item_image)
      VALUES ('$name','$description','$price','$image')"); ?>

Here is the image-upload.php file code:

Code: [Select]
<?php

//assigns the file to the image
$image =$_FILES["image"]["name"];
$uploadedfile =$_FILES["image"]["tmp_name"];

if ($image) {
   //retrieves the extension type from image upload
   $extension = getextension($image);
   //converts extension to lowercase
   $extension = strtolower($extension);
   
   //create image from uploaded file type
   if($extension=="jpg" || $extension=="jpeg") {
      $uploadedfile = $_FILES['image']['tmp_name'];
      $src = imagecreatefromjpeg($uploadedfile);
   }else if($extension=="png") {
      $uploadedfile = $_FILES['image']['tmp_name'];
      $src = imagecreatefrompng($uploadedfile);
   }else{
      $src = imagecreatefromgif($uploadedfile);
   }
   
   //creates a list of the width and height of the image
   list($width,$height)=getimagesize($uploadedfile);
   
   //adds color to the image
   $tmp = imagecreatetruecolor($newwidth,$newheight);
   
   //create image
   imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height);
   
   //set file name
   $filename = $filepath.$newimagename.".".$extension;
   $imagename = $newimagename.".".$extension;
   //uploads new file with name to the chosen directory
   imagejpeg($tmp,$filename,100);
   
   //empty variables
   imagedestroy($src);
   imagedestroy($tmp);
   
}


?>
Any help would be appreciated, fairly new to all this!

Thanks!!!

Can I get some help or a point in the right direction. I am trying to create a form that allows me to add, edit and delete records from a database. I can add, edit and delete if I dont include the image upload code. If I include the upload code I cant edit records without having to upload the the same image to make the record save to the database. So I can tell I have got the code processing in the wrong way, thing is I cant seem to see or grasp the flow of this, to make the corrections I need it work. Any help would be great!   Here is the form add.php code

<?php require_once ("dbconnection.php"); 
	$id="";
	$venue_name="";
	$address="";
	$city="";
	$post_code="";			
	$country_code="";
	$url="";
	$email="";
	$description="";
	$img_url="";
	$tags="";
	
	if(isset($_GET['id'])){
		$id = $_GET['id'];
		$sqlLoader="Select from venue where id=?";
		$resLoader=$db->prepare($sqlLoader);
		$resLoader->execute(array($id));		
	} 
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Add Venue Page</title>
<link href='http://fonts.googleapis.com/css?family=Droid+Sans' rel='stylesheet' type='text/css'>
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
	
</head>
<body>
<div class="container">
<?php
	$sqladd="Select * from venue where id=?";
	$resadd=$db->prepare($sqladd);
	$resadd->execute(array($id));
		while($rowadd = $resadd->fetch(PDO::FETCH_ASSOC)){
		$v_id=$rowadd['id'];
		$venue_name=$rowadd['venue_name'];
		$address=$rowadd['address'];	
		$city=$rowadd['city'];
		$post_code=$rowadd['post_code'];
		$country_code=$rowadd['country_code'];
		$url=$rowadd['url'];
		$email=$rowadd['email'];
		$description=$rowadd['description'];
		$img_url=$rowadd['img_url'];
		$tags=$rowadd['tags'];
	}
?>
   <h1 class="edit-venue-title">Add Venue:</h1>
   <form role="form" enctype="multipart/form-data" method="post" name="formVenue" action="save.php">
    <input type="hidden" name="id" value="<?php echo $id; ?>"/>

	<div class="form-group">
		 	<input class="form-control" type="hidden" name="id" value="<?php echo $id; ?>"/>
		 	<p><strong>ID:</strong> <?php echo $id; ?></p>
		 	<strong>Venue Name: *</strong> 
		 	<input class="form-control" type="text" name="venue_name" value="<?php echo $venue_name; ?>"/><br/>
		 	<br/>
		 	<strong>Address: *</strong>
		 	<input class="form-control" type="text" name="address" value="<?php echo $address; ?>"/><br/>
		 	<br/>
		 	<strong>City: *</strong>
		 	<input class="form-control" type="text" name="city" value="<?php echo $city; ?>"/><br/>
		 	<br/>
		 	<strong>Post Code: *</strong>
		 	<input class="form-control" type="text" name="post_code" value="<?php echo $post_code; ?>"/><br/>
		 	<br/>
		 	<strong>Country Code: *</strong>
		 	<input class="form-control" type="text" name="country_code" value="<?php echo $country_code; ?>"/><br/>
		 	<br/>
		 	<strong>URL: *</strong>
		 	<input class="form-control" type="text" name="url" value="<?php echo $url; ?>"/><br/>
		 	<br/>
		 	<strong>Email: *</strong>
		 	<input class="form-control" type="email" name="email" value="<?php echo $email; ?>"/><br/>
		 	<br/>
		 	<strong>Description: *</strong>
		 	<textarea  class="form-control"  type="text" name="description" rows ="7" value=""><?php echo $description; ?></textarea><br/>
		 	<br/>
		 	<strong>Image Upload: *</strong>
		 	<input class="form-control" type="file" name="image" value="<?php echo $img_url; ?>"/>
		 	      		<small>File sizes 300kb's and below 500px height and width.<br/><strong>Image is required or data will not save.</strong></small>	 	<br/><br/>
		 	<strong>Tags: *</strong>
		 	<input class="form-control" type="text" name="tags" value="<?php echo $tags; ?>"/><small>comma seperated vales only, e.g. soul,hip-hop,reggae</small><br/>
		 	<br/>
 			<p>* Required</p>
 			<br/>
 			<input  class="btn btn-primary" type="submit" name="submit" value="Save">

	 </div>

    </form>
</div>
</body>
</html>

Here is the save.php code

<?php	
error_reporting(E_ALL);
  ini_set("display_errors", 1);
	include ("dbconnection.php");
	$venue_name=$_POST['venue_name'];
	$address=$_POST['address'];
	$city=$_POST['city'];
	$post_code=$_POST['post_code'];
	$country_code=$_POST['country_code'];
	$url=$_POST['url'];
	$email=$_POST['email'];
	$description=$_POST['description'];
	$tags=$_POST['tags'];
	$id=$_POST['id'];

	if(is_uploaded_file($_FILES['image']['tmp_name'])){ 
    $folder = "images/hs-venues/"; 
    $file = basename( $_FILES['image']['name']); 
    $full_path = $folder.$file; 
    if(move_uploaded_file($_FILES['image']['tmp_name'], $full_path)) { 
    //echo "succesful upload, we have an image!";
    var_dump($_POST);



		if($id==null){

				$sql="INSERT INTO venue(venue_name,address,city,post_code,country_code,url,email,description,img_url,tags)values(:venue_name,:address,:city,:post_code,:country_code,:url,:email,:description,:img_url,:tags)";
				$qry=$db->prepare($sql);
				$qry->execute(array(':venue_name'=>$venue_name,':address'=>$address,':city'=>$city,':post_code'=>$post_code,':country_code'=>$country_code,':url'=>$url,':email'=>$email,':description'=>$description,':img_url'=>$full_path,':tags'=>$tags));
		}else{
				$sql="UPDATE venue SET venue_name=?, address=?, city=?, post_code=?, country_code=?, url=?, email=?, description=?, img_url=?, tags=? where id=?";
				$qry=$db->prepare($sql);
				$qry->execute(array($venue_name, $address, $city, $post_code, $country_code, $url, $email, $description, $full_path, $tags, $id));
				}

		if($success){
			var_dump($_POST);
            echo "<script language='javascript' type='text/javascript'>alert('Successfully Saved!')</script>";
            echo "<script language='javascript' type='text/javascript'>window.open('index.php','_self')</script>";
        	}
        
        

        else{
        	var_dump($_POST);
            echo "<script language='javascript' type='text/javascript'>alert('Successfully Saved!')</script>";
            echo "<script language='javascript' type='text/javascript'>window.open('index.php','_self')</script>";
    		}
    	
    	} //if uploaded
    	
    	else{ 
    		var_dump($_POST);
            echo "<script language='javascript' type='text/javascript'>alert('Upload Recieved but Processed Failed!')</script>";
            echo "<script language='javascript' type='text/javascript'>window.open('index.php','_self')</script>";
    		} 
		
		} //move uploaded
			else{
			var_dump($_POST);
            echo "<script language='javascript' type='text/javascript'>alert('Successfully Updated.')</script>";
            echo "<script language='javascript' type='text/javascript'>window.open('index.php','_self')</script>";
			} 

	?>

Thanks in advance!
Edited by hankmoody, 12 August 2014 - 05:15 PM.

I have a working image upload script that uploads, renames the file and adds filename to the database.

is it possible to include some sort of image resize code? if so can anyone point me in the right direction or better still show some example code and explain how it works etc.

below is my working code:

Code: [Select]
<?php
$rand = mt_rand(1,9999999);
$member_id = $_SESSION['SESS_MEMBER_ID'];
$caption = $_POST["caption"];

if(isset($_FILES['uploaded']['name']))
{
$allowed_filetypes = array('.jpg','.gif','.bmp','.png','.jpeg');
$max_filesize = 524288; // Maximum filesize in BYTES (currently 0.5MB) 
    $fileName = basename($_FILES['uploaded']['name']);
$errors = array();
$target = "gallery/";
$fileBaseName = substr($fileName, 0, strripos($fileName, '.'));

   // Get the extension from the filename.
   $ext = substr($fileName, strpos($fileName,'.'), strlen($fileName)-1); 
 
   //$newFileName = md5($fileBaseName) . $ext;
   $newFileName = $target . $rand . "_" . $member_id.$ext;
   
   // Check if filename already exists
   if(file_exists("gallery/" . $newFileName)) 
    {
     $errors[] = "The file you attempted to upload already exists, please try again.";
    }
   // Check if the filetype is allowed.
   if(!in_array($ext,$allowed_filetypes))
    {
         $errors[] = "The file you attempted to upload is not allowed.";
    }
    
// Now check the filesize.
   if(!filesize($_FILES['uploaded']['tmp_name']) > $max_filesize)
    {
         $errors[] = "The file you attempted to upload is too large.";
    }
  
    // Check if we can upload to the specified path.
   if(!is_writable($target))
    {
         $errors[] = "You cannot upload to the specified directory, please CHMOD it to 777.";
    }
 
    //Here we check that no validation errors have occured.
    if(count($errors)==0)
    {

//Try to upload it.
        if(!move_uploaded_file($_FILES['uploaded']['tmp_name'], $newFileName))
        {
            $errors[] = "Sorry, there was a problem uploading your file.";
        }
    }
    //Lets INSERT database information here
    if(count($errors)==0)
    {
$result = mysql_query("INSERT INTO `gallery` (`image`, `memberid`, `caption`) VALUES ('$newFileName', '$member_id', '$caption')")
    or die (mysql_error()); 

}
    //If no errors show confirmation message
    if(count($errors)==0)
    {
         echo "<div class='notification success png_bg'>
<a href='#' class='close'><img src='img/cross_grey_small.png' title='Close this notification' alt='close' /></a>
<div>
Image has been uploaded.<br>\n
</div>
</div>";


//echo "The file {$fileName} has been uploaded";
echo "<br>\n";
echo "<a href='gallery.php'>Go Back</a>\n";

   }
    else
    {
        //show error message
        echo "<div class='notification attention png_bg'>
<a href='#' class='close'><img src='img/cross_grey_small.png' title='Close this notification' alt='close' /></a>
<div>
Sorry your file was not uploaded due to the following errors:<br>\n
</div>
</div>";
//echo "Sorry your file was not uploaded due to the following errors:<br>\n";
        echo "<ul>\n";
        foreach($errors as $error)
        {
            echo "<li>{$error}</li>\n";
        }
        echo "</ul>\n";
echo "<br>\n";
echo "<a href='gallery.php'>Go Back</a>\n";
    }
    
}
else
{
    //Show the form
echo "Use the following form below to add a new image to your gallery;<br /><br />\n";
    echo "<form enctype='multipart/form-data' action='' method='POST'>\n";
    echo "Please choose a file:<br /><input class='text' name='uploaded' type='file' /><br />\n";
echo "Image Caption:<br /><input class='text' name='caption' type='text' value='' /><br /><br />\n";
    echo "<input class='Button' type='submit' value='Upload' />\n";
    echo "</form>\n";

}
?>
Many thanks to phpfreaks again.

Hi,

I have some images that I want to resize to a square dimention (40px 40px). However, not all image are square, so when they are resized, they lose their ration and look squashed.

Is there a way I can display just a part of the original image, say 40px x 40px on the top middle of each image?

I hope that makes sense

hello friends,

while clicking the form all the information goes to database, I have one image upload field,
when cliking the submit button, i would like 'image name' to go in database and file to go in
/upload folder, i have tried this for hours and gave up,

if anyone help me in this, i would be very greatful

I want to reduce a picture size from 600px * 500px to 60px * 50px size, then crop it become 50px *50px. I have two groups of codes, 1 is to reduce the size of image, other 1 is to crop the image. The problem is they works separately, how to combine this two groups of codes to make them work together? Below is my codes :

Code: [Select]
<?php
//codes of group A - Reduce the size of image from 600px * 500px to 60px * 50px   
    $save2 = "images/users/" . $image_name_2; //This is the new file you saving
    list($width2, $height2) = getimagesize($file) ; 
    $modwidth2 = 50; 
    $diff2 = $width2 / $modwidth2;
    $modheight2 = $height2 / $diff2; 
    $tn2 = imagecreatetruecolor($modwidth2, $modheight2) ; 
    $image2 = imagecreatefromjpeg($file) ; 
    imagecopyresampled($tn2, $image2, 0, 0, 0, 0, $modwidth2, $modheight2, $width2, $height2) ; 
    imagejpeg($tn2, $save2, 100) ; 

//codes of group B - Crop the image from 60px * 50px to 50px * 50px 
    $save3 = "images/users/" . $image_name_3;  
    list($width3, $height3) = getimagesize($file) ; 
    $modwidth3 = 60;  
    $diff3 = $width3 / $modwidth3;
    $modheight3 = $height3 / $diff3; 

    $left = 0; 
    $top = 0;

    $cropwidth = 50; //thumb size
    $cropheight = 50;

    $tn3 = imagecreatetruecolor($cropwidth, $cropheight) ; 
    $image3 = imagecreatefromjpeg($file) ; 
    imagecopyresampled($tn3, $image3, 0, 0, $left, $top, $cropwidth, $cropheight, $modwidth3, $modheight3) ; 
    imagejpeg($tn3, $save3, 100) ; //save the cropped image
?>
As you can see from 2 groups of codes above, 1st group resize the pic then save it to a folder. 2nd group of codes crop the pic then save it into the folder too. My question is ... After 1st group of codes resize the picture, is it necessary to save it into folder before I can crop it? If it is necessary, then I need to write new lines of codes to retrieve the resized pic from the folder for 2nd group of codes to crop it? If it is not necessary, after resizing the pic, how do I pass the pic to 2nd group of codes to crop it?
php image-resizing

Basically I want to open up a png file with a transparent background which is 48x48 pixels
And set the opacity of this to about 50% of the original.

I have the following to do what I want but just returns an empty image
On imagecolorallocatealpha i have tried setting the alpha value at different values between 0 and 127 with no success as 127 returns a black block


imagecopy($menu,$image,
#Positioning
0,0,
0,0,
#Image size
48,48
);
#Create transparent block
$new_img = imagecreatetruecolor(48, 48);
imagealphablending($new_img, true);
$transparent = imagecolorallocatealpha($new_img, 255, 255, 255, 0);
imagefilledrectangle($new_img, 0, 0, 48, 48, $transparent);
#Put block over original image
imagecopy($menu,$new_img,
#Positioning
0,0,
0,0,
#Image size
48,48
);


The image below shows on top the original and on bottom what I am roughly trying to create



Where am i going wrong?

This resizer works fine except I would like it to save the original image AND the thumbnail.  Right now its only saving the cropped thumbnail.  It's seems simple enough but I've tried several different ways but can't get it to work. :(

I would appreciate your help. :)

  define( 'DESIRED_IMAGE_WIDTH', 150 );
  define( 'DESIRED_IMAGE_HEIGHT', 150 );

  $source_path = $_FILES[ 'thumb' ][ 'tmp_name' ];
  $timestamp = time();
 
 $target = "image_files/".$imagename;
move_uploaded_file($source, $target);


  //
  // Add file validation code here
  //

  list( $source_width, $source_height, $source_type ) = getimagesize( $source_path );

  switch ( $source_type )
  {
    case IMAGETYPE_GIF:
      $source_gdim = imagecreatefromgif( $source_path );
      break;

    case IMAGETYPE_JPEG:
      $source_gdim = imagecreatefromjpeg( $source_path );
      break;

    case IMAGETYPE_PNG:
      $source_gdim = imagecreatefrompng( $source_path );
      break;
  }

  $source_aspect_ratio = $source_width / $source_height;
  $desired_aspect_ratio = DESIRED_IMAGE_WIDTH / DESIRED_IMAGE_HEIGHT;

  if ( $source_aspect_ratio > $desired_aspect_ratio )
  {
    //
    // Triggered when source image is wider
    //
    $temp_height = DESIRED_IMAGE_HEIGHT;
    $temp_width = ( int ) ( DESIRED_IMAGE_HEIGHT * $source_aspect_ratio );
  }
  else
  {
    //
    // Triggered otherwise (i.e. source image is similar or taller)
    //
    $temp_width = DESIRED_IMAGE_WIDTH;
    $temp_height = ( int ) ( DESIRED_IMAGE_WIDTH / $source_aspect_ratio );
  }

  //
  // Resize the image into a temporary GD image
  //

  $temp_gdim = imagecreatetruecolor( $temp_width, $temp_height );
  imagecopyresampled(
    $temp_gdim,
    $source_gdim,
    0, 0,
    0, 0,
    $temp_width, $temp_height,
    $source_width, $source_height
  );

  //
  // Copy cropped region from temporary image into the desired GD image
  //

  $x0 = ( $temp_width - DESIRED_IMAGE_WIDTH ) / 2;
  $y0 = ( $temp_height - DESIRED_IMAGE_HEIGHT ) / 2;

  $desired_gdim = imagecreatetruecolor( DESIRED_IMAGE_WIDTH, DESIRED_IMAGE_HEIGHT );
  imagecopy(
    $desired_gdim,
    $temp_gdim,
    0, 0,
    $x0, $y0,
    DESIRED_IMAGE_WIDTH, DESIRED_IMAGE_HEIGHT
  );

  //
  // Render the image
  // Alternatively, you can save the image in file-system or database
  //

  header( 'Content-type: image/jpeg' );
  imagejpeg( $desired_gdim, "image_files/" . $timestamp . $_FILES["thumb"]["name"] );
  

Hey guys,

I am making a quotes siggy, code:
<?php

/**
 * @author Jragon
 * @copyright 2010
 */

$textfile = "quotes.txt";
$quotes = array();
if (file_exists($textfile)) {
    $quotes = explode("\n", file_get_contents($textfile));
    srand((float)microtime() * 10000000);
    $string = $quotes[array_rand($quotes)];
    $string = wordwrap($string, 100, "\n", true);
    text_to_image($string, 800);
} else {
    $string = "Sig file non-existant...";
}
function text_to_image($text, $image_width, $colour = array(0, 244, 34), $background =
    array(0, 0, 0))
{
    $font = 5;
    $line_height = 15;
    $padding = 2;
    $text = wordwrap($text, ($image_width/10));
    $lines = explode("\n", $text);
    $image = imagecreate($image_width, ((count($lines) * $line_height)) + ($padding *
        2));
    $background = imagecolorallocate($image, $background[48], $background[44], $background[44]);
    $colour = imagecolorallocate($image, $colour[0], $colour[1], $colour[2]);
    imagefill($image, 0, 0, $background);
    $i = $padding;
    foreach ($lines as $line) {
        imagestring($image, $font, $padding, $i, trim($line), $colour);
        $i += $line_height;
    }
    header("Content-type: image/jpeg");
    imagejpeg($image);
    imagedestroy($image);
    exit;
}
?>


What i want it to do is have the lines the same legnth, and when a quote is smaller the image to shrink.


Thanks

jragon