我将在数据库中设置一个缩略图-Iwillsetanthumbnailinthedatabase

I have an PHP script that add an photo in an database with some fields, this works fine. The image in my database is an BLOB. Now will i add an thumbnail of this image directly in the database too. I am do this with the GD library, but it doesn't work.

我有一个PHP脚本,在一个数据库中添加一些带有一些字段的照片,这很好用。我的数据库中的图像是BLOB。现在我将直接在数据库中添加此图像的缩略图。我是用GD库做的,但它不起作用。

The BLOB from the thumbnail is 0b, can anyone help me with this problem? The connection with the database is done in the top_bar and works. Everything is set in the database, only the thumbnail not.

缩略图中的BLOB是0b,任何人都可以帮我解决这个问题吗?与数据库的连接在top_bar中完成并且有效。一切都在数据库中设置,只有缩略图没有。

  

    

      De image is opgeslagen in de database.
";

    }
    else {
    echo "
Je hebt nog geen image gekozen, of het bestand is te groot
";
    }
    ?>

     60000000)) {// Bericht voor als het is verstuurd maar groter is dan 60kb
      echo "het bestand is te groot, probeer het nogmaals";
      }
    ?>
    

    
    
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I have now four warning with this script, can anyone explain why I get this warnings? The warnings are:

我现在有四个警告这个脚本,任何人都可以解释为什么我得到这个警告?警告是:

Warning: imagecreatefromstring(): Empty string or invalid image in *MY URL* on line 24 Warning: imagesx() expects parameter 1 to be resource, boolean given in *MY URL* on line 25  Warning: imagesy() expects parameter 1 to be resource, boolean given in *MY URL* on line 26  Warning: imagecopyresized() expects parameter 2 to be resource, boolean given in *MY URL* on line 36

1 个解决方案

ob_start();
imagejpeg($tn);
$image_cOntents= ob_get_flush();
// Now write $image_contents to the database, instead of $tn