500 Internal Server Error for php file not for html

Question

My site having 4-5 static pages only. index.html & index.php both are there. index.html is working fine. If I change to index.php, it's giving 500 Internal Server Error. I don't know where is my mistake?

Note: If I use .htaccess file with php_flag display_errors 1,

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

If I use .htaccess file with empty,

It's showing Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

And if I give ../contact-us.php, it's showing correctly.

Thanks...

Are you typing /index.php into your address-bar or did you actually change the directory-index to index.php? Also please post the code contained in the index.php file! — Lars Ebert, Jul 17 '13 at 07:11
Check your logs (`/var/log/apache/error.log` or `/var/log/httpd/error.log`, most likely); but I'd guess your PHP file has an error. — Amadan, Jul 17 '13 at 07:11
500 Internal Server Error is generic, the real cause is hidden in your server logs. — DevZer0, Jul 17 '13 at 07:12
I think this related to file permission, can you check other PHP file permission and compare with the one that you renamed... — , Jul 17 '13 at 07:12

score 185 · Answer 1 · edited Jul 17 '13 at 07:18

185

500 Internal Server Error is shown if your php code has fatal errors but error displaying is switched off. You may try this to see the error itself instead of 500 error page:

In your php file:

ini_set('display_errors', 1);

In .htaccess file:

php_flag display_errors 1

edited Jul 17 '13 at 07:18

Bart Friederichs

33,050
15
95
195

answered Jul 17 '13 at 07:14

ozahorulia

9,798
8
48
72

1

@KarSho check this out: http://stackoverflow.com/questions/11179706/getting-internal-server-error-while-trying-to-access-my-site – ozahorulia Jul 17 '13 at 07:31
just want to point out that .htaccess file is present in your project root. if it isn't , simply create a new file and rename its extension – ansh sachdeva Feb 18 '20 at 11:41
In some case these settings aren't enough. For example I'm using PHP fast CGI and I'm stuck at internal server error but don't know where it come from. Everything seems to be alright, error was set to displayed but I think it was come from execution timeout. So, I have to enable both `FcgidIOTimeout` in apache and `max_execution_time` in PHP. If user who use PHP fast CGI, also check fcgi settings in apache config. https://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html – vee Jul 30 '21 at 10:21

score 90 · Answer 2 · answered Dec 16 '15 at 03:10

90

A PHP file must have permissions set to 644. Any folder containing PHP files and PHP access (to upload files, for example) must have permissions set to 755. PHP will run a 500 error when dealing with any file or folder that has permissions set to 777!

answered Dec 16 '15 at 03:10

David Valenza

1,159
9
4

9

How would one change those permissions? – JCMcRae Jul 10 '16 at 15:03
2

Changing all the files permission to 755 and also the main folder to 755 Solve the problem for me – Oussaki Aug 17 '16 at 06:17
1

What did the trick for me: set both group and owner of index.php as the Apache user, mine was nobody for group! – Heitor Jul 16 '19 at 06:13
@JCMcRae to change permissions is simply : chmod 644 .php – imrok Jul 29 '19 at 09:58

score 3 · Answer 3 · answered Nov 17 '14 at 19:35

I was having this problem because I was trying to connect to MySQL but I didn't have the required package. I figured it out because of @Amadan's comment to check the error log. In my case, I was having the error: Call to undefined function mysql_connect()

If your PHP file has any code to connect with a My-SQL db then you might need to install php5-mysql first. I was getting this error because I hadn't installed it. All my file permissions were good. In Ubuntu, you can install it by the following command:

sudo apt-get install php5-mysql

score 3 · Answer 4 · answered Nov 11 '15 at 20:50

3

It was changing the line endings (from Windows CRLF to Unix LF) in the .htaccess file that fixed it for me.

answered Nov 11 '15 at 20:50

Saran

3,845
3
37
59

score 2 · Answer 5 · edited Jul 16 '23 at 16:26

I ran into this problem on Windows 8.1 while trying to use .htaccess files for rewriting. I forgot to modify the following line in httpd.conf:

#LoadModule rewrite_module modules/mod_rewrite.so

to

LoadModule rewrite_module modules/mod_rewrite.so

Restarted the apache monitor, now all works well. Just posting this as an answer because someone in the future may run across the same issue with a simple fix.

Good luck!

Lin · Answer 6 · 2015-08-07T15:26:46.460

Google guides me here but it didn't fix mine, this is a very general question and there are various causes, so I post my problem and solution here for reference in case anyone might read this later.

Another possible cause of 500 error is syntax error in header(...) function, like this one:

header($_SERVER['SERVER_PROTOCOL'] . '200 OK');

Be aware there should be space between server protocol and status code, so it should be:

header($_SERVER['SERVER_PROTOCOL'] . ' 200 OK');

So I suggest check your http header call if you have it in your code.

500 Internal Server Error for php file not for html

6 Answers6

Linked

Related