PHP 500内部服务器错误的原因

Question

I am trying to upload the large image(1 MB) files on server using php code but it is showing the 500 internal server error it is only uploading up to 128 KB. Even though i have checked all the required setting of my server all settings are correct i am not getting how to trace this error.Is there any other setting which i don't know so please help me to find out or if all settings is fine then please help me trace out this 500 internal server error.

Settings which i have already verified.

memory_limit 90M
post_max_size 64M
upload_max_filesize 64M
FcgidMaxRequestLen 104857600

Below is the error:

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, webmaster@domain.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.

Answer 1

Use two lines at the top of the page to display errors

ini_set("display_errors", "1");

error_reporting(E_ALL);