The localhost page isn t working localhost is currently unable to handle this request HTTP ERROR 500

Question

I know that there is some 500 Internal Server Error when is see this page      The localhost page isn   t working  localhost is currently unable to handle this request  HTTP ERROR 500   I have already set the variables display errors  On and error reporting   E ALL in my php ini config file and restarted the server    I still see the same page and not the actual error message that is causing the Internal Server Error  Why

User · Answer

I was using CakePHP and I was seeing this error:

This page isn’t working
localhost is currently unable to handle this request.
HTTP ERROR 500

I went to see the CakePHP Debug Level defined at app\config\core.php:

/**
 * CakePHP Debug Level:
 *
 * Production Mode:
 *  0: No error messages, errors, or warnings shown. Flash messages redirect.
 *
 * Development Mode:
 *  1: Errors and warnings shown, model caches refreshed, flash messages halted.
 *  2: As in 1, but also with full debug messages and SQL output.
 *  3: As in 2, but also with full controller dump.
 *
 * In production mode, flash messages redirect after a time interval.
 * In development mode, you need to click the flash message to continue.
 */
Configure::write('debug', 0);

I chanted the value from 0 to 1:

Configure::write('debug', 1);

After this change, when trying to reload the page again, I saw the corresponding error:

Fatal error: Uncaught Exception: Facebook needs the CURL PHP extension.

Conclusion: The solution in my case to see the errors was to change the CakePHP Debug Level from 0 to 1 in order to show errors and warnings.

User · Answer

It maybe solve your problem  check your files access level    sudo chmod -R 777   your files location

User · Answer

If you are using the codeigniter framework and are testing the project on a localhost  open the main Index php file of your project folder and find this code   define  ENVIRONMENT    production      Change it to  define   ENVIRONMENT    development      Because same this ENVIRONMENT is in your database php file under config folder   like this     db debug    gt   ENVIRONMENT      development     So the environment should be the same in both places and problem will be solved

User · Answer

So  eventually I did that thing that all developers hate doing  I went and checked the server log files and found a report of a syntax error in line n   tail -n 20  var log apache2 error log

User · Answer

Such kind of error normally happens when you try using functions like php info   wrongly   lt  php       php info       500 error      phpinfo       Works correctly   gt   A close look at your code will be better

User · Answer

First of all check error log in the path that your webserver indicates  Then maybe the browser is showing friendly error messages  so disable it   https   superuser com questions 202244 show-http-error-details-in-google-chrome

User · Answer

Here s an answer to a 2-year old question in case it helps anyone else with the same problem   Based upon the information you ve provided  a permissions issue on the file  or files  would be one cause of the same 500 Internal Server Error    To check whether this is the problem  if you can t get more detailed information on the error   navigate to the directory in Terminal and run the following command   ls -la   If you see limited permissions - e g  -rw-------  against your file  then that s your problem   The solution then is to run chmod 644 on the problem file s  or chmod 755 on the directories   See this answer - How do I set chmod for a folder and all of its subfolders and files  - for a detailed explanation of how to change permissions   By way of background  I had precisely the same problem as you did on some files that I had copied over from another Mac via Google Drive  which transfer had stripped most of the permissions from the files     The screenshot below illustrates   The index php file with the -rw-------  permissions generates a 500 Internal Server Error  while the index finstuff php  precisely the same content   with -rw-r--r--  permissions is fine   Changing the permissions on the index php immediately resolves the problem   In other words  your PHP code and the server may both be fine   However  the limited read permissions on the file may be forbidding the server from displaying the content  causing the 500 Internal Server Error message to be displayed instead

[php] The localhost page isn’t working localhost is currently unable to handle this request. HTTP ERROR 500

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