Image processing

jacque99 · October 12, 2010

Hello everyone,

In fact, I have two scripts that work well, the first:

In choosing an image via a form, then resize the image and finally registers with a new name entered by the user.

The second script:

Takes a portion of an image.

What I tried to do:

Modify the second script to allow me to:

Select the image using a form

Take part image

Save the image with a new name entered by the user.

I tried several times to mix the two scripts, but I ff all the time off.

I'm listening to your advice

Thank you

Here are my scripts

//**************************************************************************************First Script

//****************************************index.php

<html>
<head></head>
<body>
<!--On affiche le formulaire d'envoi d'une image-->
<center>
<br /><hr />

<form method="post" enctype="multipart/form-data" action="upload.php">
<p>



   Le nom de l'image redimensionner avec 95 ,95
   <input type="text" name="video"><br><br>
   
  
   
<input type="file" name="fichier" size="30">
<input type="submit" name="upload" value="Uploader">
</p>
</form>
</center>

  </body>
  </html>

//****************************************upload.php

<?php


$nomImage=$_POST['video'];

if( isset($_POST['upload']) ) // si formulaire soumis
{
    $content_dir = 'upload/'; // dossier où sera déplacé le fichier

    $tmp_file = $_FILES['fichier']['tmp_name'];

    if( !is_uploaded_file($tmp_file) )
    {
        exit("Le fichier est introuvable");
    }

    // on vérifie maintenant l'extension
    $type_file = $_FILES['fichier']['type'];

    if( !strstr($type_file, 'jpg') && !strstr($type_file, 'jpeg') && !strstr($type_file, 'png') && !strstr($type_file, 'bmp') && !strstr($type_file, 'gif') )
    {
        exit("Le fichier n'est pas une image");
    }

    // on copie le fichier dans le dossier de destination

$ext = substr($_FILES['fichier']['name'], strrpos($_FILES['fichier']['name'], '.'));

$name_file = $nomImage.$ext;
echo $name_file;


//fonction pour changer les dimentions des fichiers
  function redimensionner($file, $maxwidth, $maxheight) {

list($rawwidth, $rawheight, $type) = @getimagesize($file);

  if ($maxwidth < $rawwidth && $rawwidth >= $rawheight) {

    $width = $maxwidth;

    $height = ($width / $rawwidth) * $rawheight;

  }

  elseif ($maxheight < $rawheight && $rawheight >= $rawwidth) {

    $height = $maxheight;

    $width = ($height /$rawheight) * $rawwidth;

  }

  else {

    $height = $rawheight;

    $width = $rawwidth;

  }

  $imgbuffer = imagecreatetruecolor($width, $height);

  switch($type) {

    case 1: $image = imagecreatefromgif($file); break;

    case 2: $image = imagecreatefromjpeg($file); break;

    case 3: $image = imagecreatefrompng($file); break;

    case 4: $image = imagecreatefrombmp($file); break;

    default: exit("Tried to create thumbnail from $file: not a valid image");

  }

  if (!$image) exit("Image creation from $file failed for an unknown reason. Probably not a valid image.");

  else {

    imagecopyresampled($imgbuffer, $image, 0, 0, 0, 0, $width, $height, $rawwidth, $rawheight);

    imageinterlace($imgbuffer);

    switch($type) {




      case 1: $image = imagegif($imgbuffer, $file, 80); break;

      case 2: $image = imagejpeg($imgbuffer, $file, 80); break;

      case 3: $image = imagepng($imgbuffer, $file, 7); break;

  

    }

  }

}


if( preg_match('#[\x00-\x1F\x7F-\x9F/\\\\]#', $name_file) )

{

  exit("Nom de fichier non valide");

}

  else if( !move_uploaded_file($tmp_file, $content_dir . $name_file) )

{

  exit("Impossible de copier le fichier dans $content_dir");

} 

redimensionner($content_dir.$name_file,95, 95);

}
?>


//***************************************************************************************Second script: Take one part of the image
index.php

<?php 
function CroppedThumbnail($imgSrc,$thumbnail_width,$thumbnail_height) { //$imgSrc is a FILE - Returns an image resource. 
    //getting the image dimensions  
    list($width_orig, $height_orig) = getimagesize($imgSrc);   
    $myImage = imagecreatefrompng($imgSrc); 
    $ratio_orig = $width_orig/$height_orig; 
    
    if ($thumbnail_width/$thumbnail_height > $ratio_orig) { 
       $new_height = $thumbnail_width/$ratio_orig; 
       $new_width = $thumbnail_width; 
    } else { 
       $new_width = $thumbnail_height*$ratio_orig; 
       $new_height = $thumbnail_height; 
    } 
    
    $x_mid = $new_width/2;  //horizontal middle 
    $y_mid = $new_height/2; //vertical middle 
    
    $process = imagecreatetruecolor(round($new_width), round($new_height)); 
    
    imagecopyresampled($process, $myImage, 0, 0, 0, 0, $new_width, $new_height, $width_orig, $height_orig); 
    $thumb = imagecreatetruecolor($thumbnail_width, $thumbnail_height); 
    imagecopyresampled($thumb, $process, 0, 0, ($x_mid-($thumbnail_width/2)), ($y_mid-($thumbnail_height/2)), $thumbnail_width, $thumbnail_height, $thumbnail_width, $thumbnail_height); 

    imagedestroy($process); 
    imagedestroy($myImage); 
    return $thumb; 
} 

//Create the thumbnail 
$newThumb = CroppedThumbnail("monImage.png",200,200); 

// And display the image... 
header('Content-type: image/jpeg'); 
imagejpeg($newThumb); 
?>

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