代碼if(is_array($_FILES) && isset($_FILES['photography_attachment'])) {      if(is_uploaded_file($_FILES['photography_attachment']['tmp_name'])) {        $fileName = $_FILES["photography_attachment"]["name"]; // The file name        $fileTmpLoc = $_FILES["photography_attachment"]["tmp_name"]; // File in the PHP tmp folder        $fileType = $_FILES["photography_attachment"]["type"]; // The type of file it is        $fileSize = $_FILES["photography_attachment"]["size"]; // File size in bytes        $fileErrorMsg = $_FILES["photography_attachment"]["error"]; // 0 = false | 1 = true        $kaboom = explode(".", $fileName); // Split file name into an array using the dot        $fileExt = end($kaboom); // Now target the last array element to get the file extension        if (!$fileTmpLoc) { // if file not chosen          $error = $error."<p>Please browse for a file before clicking the upload button.</p>";        } else if($fileSize > 10485760) { // if file size is larger than 2 Megabytes          $error = $error."<p><span>Your file was larger than</span> 10 <span>Megabytes in size</span>.</p>";          unlink($fileTmpLoc); // Remove the uploaded file from the PHP temp folder        } else if (!preg_match("/.(gif|jpg|png|jpeg)$/i", $fileName) ) {          // This condition is only if you wish to allow uploading of specific file types          $error = $error."<p>Your file was not .gif, .jpg, .png</p>";          unlink($fileTmpLoc); // Remove the uploaded file from the PHP temp folder        } else if ($fileErrorMsg == 1) { // if file upload error key is equal to 1          $error = $error."<p>An error occured while processing the file. Try again.</p>";        }     }else{ $error = "Please try again !!!"; }  }else{ $error = "Attachment field cannot be blank!"; }總是轉到“請再試一次！?。　?否則在 Windows 中上傳圖像時，但在 linux 系統中運行良好。你能請任何人幫我解決這個問題嗎？