PHP - Reduce Image Size with my code

Question

I've created a code to upload my image file.

But i need to reduce their MBytes… How can i do it?

Can someone explain to be and help me to create a good compression code?

               if(!empty($ads_file)) {

               $files = $_FILES['img_file'];
               $allowed = array('jpg', 'jpeg');

               foreach($files['name'] as $position => $file_name) {

                   $file_tmp = $files['tmp_name'][$position];
                   $file_size = $files['size'][$position];
                   $file_error = $files['error'][$position];

                   $file_ext = explode('.', $file_name);
                   $file_ext = strtolower(end($file_ext));

                   if(in_array($file_ext, $allowed)) {

                        if($file_error === 0) {

                           if($file_size <= 4097152) {

                               $file_name_new = uniqid('', true) . '.' . $file_ext;
                               $file_destination = 'im/pd/'. $file_name_new;

                               $colBanco=3;
                               $j=0;                                   

                               if ($j<$colBanco){
                                  $praBanco .="'".$file_destination."',";

                                  if(!empty($errors)) { 
                                        //don't sent to folder if there is errors.
                                  } else {
                                      move_uploaded_file($file_tmp, $file_destination);  
                                  }                                         
                               }

                               $j++;

                           } else {
                              $errors[] = "
                              <div class='alert warning'>
                                  <span class='closebtn'>&times;</span>  
                                  <strong><i class='fas fa-file-excel'></i></strong> Esta imagem Ã© demasiado grande.
                              </div>";                               
                           }

                        } else {
                              $errors[] = "
                              <div class='alert warning'>
                                  <span class='closebtn'>&times;</span>  
                                  <strong><i class='fas fa-plug'></i></strong> Falha ao efetuar o upload. Tente novamente...
                              </div>";   
                        }

                   } else {
                         $errors[] = "
                         <div class='alert warning'>
                              <span class='closebtn'>&times;</span>  
                              <strong><i class='fas fa-file-excel'></i></strong> Ficheiro inv&aacute;lido, tente JPG/JPEG.
                         </div>";  
                   }
               }

          }

Possible duplicate of [php resize image on or before upload](https://stackoverflow.com/questions/12757005/php-resize-image-on-or-before-upload) — Kamalesh M. Talaviya, Jul 06 '18 at 02:16

score 0 · Answer 1 · answered Jul 05 '18 at 23:18

You can follow this code in PHP to do compression. The getimagesize() function is used to find the size of any given image file and return the dimensions along with the file type.

 <?php 
  function compress($source, $destination, $quality) {

    $info = getimagesize($source);

    if ($info['mime'] == 'image/jpeg') 
      $image = imagecreatefromjpeg($source);

    elseif ($info['mime'] == 'image/gif') 
      $image = imagecreatefromgif($source);

    elseif ($info['mime'] == 'image/png') 
      $image = imagecreatefrompng($source);

    imagejpeg($image, $destination, $quality);

    return $destination;
 }

 $source_img = 'source.jpg';
 $destination_img = 'destination .jpg';

 $d = compress($source_img, $destination_img, 90);

ok, but how can i use it in my code.. because… as u see… is complexed xDD — João Rodrigues, Jul 05 '18 at 23:39

PHP - Reduce Image Size with my code

1 Answers1