How to create a thumbnail of an image that is saved in the comic book?

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I have an image saved in BD need to know how to Resize it, how to save it in a folder.

php image

  • The save part has already been asked in http://answall.com/questions/47101/como-salvar-array-de-bytes-em-arquivo-no-php, so this part is duplicated.

  • A word : The function imagecopyresized. Then just use the function that loads the image from a string

  • @bigown rephrased the most complete question as he was advised to do so. Now it’s settled sorry for the confusion. Thank you

1 answer

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RESOLVED

    //Seta endereço da Imagem
    $src = './thumbnail/'.$objeto->id.'.jpg';

    //VERIFICA SE ARQUIVO THUMBNAIL JA EXISTE
    //E Verifica se ARRAY DE BYTES QUE VEM DO BD é nulo
    if(!file_exists($src) && $objeto->foto!=null){
      $arquivo = fopen($src,'wb');
      //Salva foto original
      fwrite($arquivo, $objeto->foto);
      fclose($arquivo);
      //Carrega foto Original
      $img = WideImage::load($src);
      //Redimensiona imagem, usando parametro inside não destorce a imagem
      $img = $img->resize(100,100,'inside');
      //Salva foto com qualidade 80%
      $img->saveToFile($src,80);
   }
//MOSTRAR IMAGEM 
if(file_exists($src)) //verifica se imagem existe, pode ser que não exista foto no BD no entanto é preciso tratar quando nao houver pois não será criado nenhum arquivo
    echo "<img src='$src'/>";
else
    echo "<img src='./thumbnail/default.jpg'/>";

Note: Function load of Wideimage can receive binary but I could not make it work doing this $img = Wideimage::load($object->photo);

Thanks to @Maniero who helped me save file How to save byte array in PHP file?

  • Using Wideimage?

  • Yes, Wideimage. But I’m testing the Canvas class.

  • It’s worth taking a look at Intervention Image as well. It’s pretty simple to use https://github.com/Intervention/image

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