PHP 后内容长度超过限制

Question

我的图片上传器设置了一条错误消息，当上传的图片大于特定大小时显示。但是，如果我上传了非常大的内容，错误消息会被绕过，并且用户会看到我不希望他们看到的 POST Content-Length exceeded 错误消息。谁能帮我弄清楚为什么太大的图像文件没有显示错误消息？

这是上传照片时调用的验证函数：

//------------------------------
private function _verify($fn) {
//------------------------------
    global $_WEBCONFIG;

    $isValid = TRUE;
    $userID = isset($_POST["hidId"]) ? (int)$_POST["hidId"] : 0;
    $this->record2->p_id = $this->proId;

    $fieldName  = "txtName";
    $fieldValue = SanitizeData($_POST[$fieldName]);
    if (!$fieldValue || strlen($fieldValue = trim($fieldValue)) == 0) {
        $this->record2->i_name = '';
    } else {
        $this->record2->i_name = $fieldValue;
    }

    $fieldName  = "fleImage";
    if (isset($_FILES[$fieldName]) && strlen($_FILES[$fieldName]['name']) > 0) {
        $fieldValue = $_FILES[$fieldName]['name'];
        $file_ext   = strtolower(GetExtName($fieldValue));
        $arExts     = explode(",", VALID_IMGS);

        if (!in_array($file_ext, $arExts)) {
            $this->errors[] = "Invalid Image Format. (Allowed image types: " . VALID_IMGS . ")";
            $isValid = FALSE;
        } else {
            $size = getimagesize($_FILES[$fieldName]['tmp_name']);
             if ($size[0] < $_WEBCONFIG['THUMB_WIDTH'] || $size[1] < $_WEBCONFIG['THUMB_HEIGHT']) {
                $this->errors[] = "Invalid Image Size. (Image Dimensions: " . $_WEBCONFIG['IMAGE_WIDTH'] . " x " . $_WEBCONFIG['IMAGE_HEIGHT'] . " or larger)";
                $isValid = FALSE;
             }

             $imageSize = filesize($_FILES[$fieldName]['tmp_name']);
             if ($imageSize > 16777216){
                $this->errors[] = "Invalid File Size. File size must be smaller than 128 MB.";
                $isValid = FALSE;
             }

        }
    } else if ($fn == 0) {
        $this->errors[] = "Please upload an Image (Image Dimensions: " . $_WEBCONFIG['IMAGE_WIDTH'] . " x " . $_WEBCONFIG['IMAGE_HEIGHT'] . " or larger.)";
        $isValid = FALSE;
    }

    $fieldName  = "txtOrder";
    $fieldValue = SanitizeData($_POST[$fieldName]);
    if (strlen($fieldValue = trim($fieldValue)) == 0) {
        $this->record2->i_sort_id = 99999;
    } else {
        $this->record2->i_sort_id = $fieldValue;
    }

    return $isValid;
}//end function

我上传的绕过错误消息的图像大小是 37.4 MB

Answer 1

该错误很可能是由服务器发送的。服务器将在 php.ini 中有可以配置的设置。例如

memory_limit = 32M
upload_max_filesize = 10M
post_max_size = 20M

php.ini 文件通常存储在 /etc/php.ini 或 /etc/php.d/cgi/php.ini 或 /usr/local/etc/php.ini 但大多数网络主机都提供了一个选项在控制面板中编辑此文件