從PHP取消關聯圖像

Question

我正在嘗試取消鏈接與mysql表記錄ID鏈接的指定圖像。我可以刪除mysql上的記錄。 運行此腳本時出現內部服務器錯誤，

查詢：

我有兩個攝像頭in_cam和out_cam文件夾，我試圖將圖像從in_cam交換到out_cam，我的腳本將圖像從in_cam復制到out_cam，但是圖像並未在in_cam中刪除。

 Put the entry into the other table
            $sql = "INSERT INTO $newCamTable (plate, nread, datetime, millisecs, nationality, image_name,image) SELECT plate, nread, datetime, millisecs, nationality, image_name,image  FROM $camTable $
            logit($sql);
            $result = $conn->Execute($sql);
            if (!$result)
              {
                print $conn->ErrorMsg();
              }

            $sql = "SELECT id FROM $newCamTable ORDER BY id DESC";
            $result = $conn->Execute($sql);
            if (!$result)
              {
                print $conn->ErrorMsg();
              }
            $row = $result->fields;
            $newId = $row['id'];

            $sql = "UPDATE $newCamTable SET name=\"$new_cam_name\", camera_id=\"$new_cam_id\" WHERE id=\"$newId\"";
            logit($sql);
            $result = $conn->Execute($sql);
            if (!$result)
              {
                print $conn->ErrorMsg();
              }
    This is what I AM TRYING TO DO.

            sql = """SELECT id FROM  $camTable where id = \"$tableEntryId\"  LIMIT 1";
            logit($sql);
            $result  = $conn->Execute($sql);
            $id =  etCommonGetImagePath($conn, $camName, $id) {
            $serverDir = $_SERVER['DOCUMENT_ROOT'];
            $imagesTop = "/cam_images";

            $idArray = str_split(strval($id));
            $idString = implode('/', $idArray);

            $webPath = $imagesTop . "/" . $camName . "/" . $idString . ".jpg";
            $full_path = $serverDir . $webPath;

            if (file_exists($full_path)) {
            unlink($idString);
            }*/


            // Delete the entry from the camera table
            $sql = "DELETE FROM $camTable WHERE id=\"$tableEntryId\" LIMIT 1";
            logit($sql);
            $result = $conn->Execute($sql);

Answer 1

您將必須使用服務器上的路徑來刪除圖像，而不是URL。

unlink('/var/www/test/folder/images/image_name.jpeg');

Answer 2

以下應該有幫助

realpath-返回規范化的絕對​​路徑名is_read-告訴文件是否存在並且可讀取消鏈接-刪除文件

通過realpath運行文件路徑，然后檢查返回的路徑是否存在，如果存在，請取消鏈接。