PHP幫助：（圖片「bla bla」無法顯示，因爲它包含錯誤

Question

當我試圖在我的網站上水印全尺寸圖像時，Im正面臨着一個非常惱人的問題。它突然開始顯示這個錯誤：圖像「bla bla」無法顯示，因爲它包含錯誤

我檢查了一切，似乎一切都工作得很好！我卡住了，我不知道該怎麼辦

這裏是我的水印php文件：

 
require_once "maincore.php"; 

if (isset($_GET['photo_id']) && isnum($_GET['photo_id'])) { 

    $result = dbquery("SELECT td.*, tc.* FROM ".DB_PRODUCTS." td LEFT JOIN ".DB_PRODUCT_CATS." tc ON td.product_cat=tc.cat_id WHERE product_id='".$_GET['photo_id']."'"); 

    $data = dbarray($result); 

     define("PHOTODIR", BASEDIR."downloads/images/"); 

     $parts = explode(".", $data['product_image']); 

     $wm_file1 = $parts[0]."_w1.".$parts[1]; 

     $wm_file2 = $parts[0]."_w2.".$parts[1]; 

     if (!isset($_GET['full'])) { 

      $wm_file = PHOTODIR.$wm_file1; 

     } else { 

      $wm_file = PHOTODIR.$wm_file2; 

     } 

     header("Content-type: image/jpg"); 

     $img = PHOTODIR.$data['product_image']; 

     $cop = BASEDIR.$settings['photo_watermark_image']; 

     if (preg_match("/.jpg/i", strtolower($img)) || preg_match("/.jpeg/i", strtolower($img))) { 

      $image = imagecreatefromjpeg($img); 

     } else if (preg_match("/.png/i", strtolower($img))) { 

      $image = imagecreatefrompng($img); 

     } else if (preg_match("/.gif/i", strtolower($img))) { 

      $image = imagecreatefromgif($img); 

      $sizeX = imagesx($image); 

      $sizeY = imagesy($image); 

      $image_tmp = imagecreatetruecolor($sizeX, $sizeY); 

      $ica = imagecolorallocate($image_tmp, 255, 255, 255); 

      imagefill($image_tmp, 0, 0, $ica); 

      if ($settings['thumb_compression'] == "gd2") { 

       imagecopyresampled($image_tmp, $image, 0, 0, 0, 0, $sizeX, $sizeY, $sizeX, $sizeY); 

      } else { 

       imagecopyresized($image_tmp, $image, 0, 0, 0, 0, $sizeX, $sizeY, $sizeX, $sizeY); 

      } 

      $tmp = PHOTODIR.md5(time().$img).'.tmp'; 

      imagejpeg($image_tmp, $tmp); 

      imagedestroy($image_tmp); 

      $image = imagecreatefromjpeg($tmp); 

      unlink($tmp); 

     } 

     if (file_exists($cop) && preg_match("/.png/i", strtolower($cop)) && $settings['photo_watermark']) { 

      $image2 = false; 

      $image_dim_x = imagesx($image); 

      $image_dim_y = imagesy($image); 

      $copyright = imagecreatefrompng($cop); 

      $copyright_dim_x = imagesx($copyright); 

      $copyright_dim_y = imagesy($copyright); 

      $where_x = $image_dim_x - $copyright_dim_x - 5; 

      $where_y = $image_dim_y - $copyright_dim_y - 5; 

      imagecopy ($image, $copyright, $where_x, $where_y, 0, 0, $copyright_dim_x, $copyright_dim_y); 

      $thumb_w = 0; $thumb_h = 0; 

      if (!isset($_GET['full'])) { 

       if ($image_dim_x > $settings['photo_w'] || $image_dim_y > $settings['photo_h']) { 

        if ($image_dim_x $image_dim_y) { 

         $thumb_w = $settings['photo_w']; 

         $thumb_h = round(($image_dim_y * $settings['photo_w'])/$image_dim_x); 

        } else { 

         $thumb_w = $settings['photo_w']; 

         $thumb_h = $settings['photo_h']; 

        } 

       } else { 

        $thumb_w = $image_dim_x; 

        $thumb_h = $image_dim_y; 

       } 

       $image2 = imagecreatetruecolor($thumb_w, $thumb_h); 

       if ($settings['thumb_compression'] == "gd2") { 

        imagecopyresampled($image2, $image, 0, 0, 0, 0, $thumb_w, $thumb_h, $image_dim_x, $image_dim_y); 

       } else { 

        imagecopyresized($image2, $image, 0, 0, 0, 0, $thumb_w, $thumb_h, $image_dim_x, $image_dim_y); 

       } 

       imagedestroy($image); 

      } 

     } 

     //create image 

     if ($settings['photo_watermark_save']) { imagejpeg(($image2 ? $image2 : $image), $wm_file); } 

     imagejpeg((isset($image2) && $image2 ? $image2 : $image)); 

     imagedestroy((isset($image2) && $image2 ? $image2 : $image)); 

     if (isset($copyright) && is_resource($copyright)) { ImageDestroy($copyright); } 

} else { 

    redirect("index.php"); 

} 

請幫幫我！謝謝！

Answer 1

php.ini是否啓用了display_errors設置？如果是這樣，你的代碼可能會拋出一個警告或通知，這些警告或通知將被合併到二進制圖像數據中並破壞它。 檢查你的PHP錯誤日誌中的新條目。

另一種可能性是，包含文件通過在關閉的PHP標記下方底部有多個空行輸出空白。