How to log errors to a file in PHP using error_log

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Follow these steps to configure PHP to allow errors to be logged to a file:

  1. In Terminal, type nano /etc/php.ini and press enter
  2. Press Ctrl W (to search), type log_errors and press enter
  3. Ensure log_errors = On
  4. Press Ctrl O (to save)
  5. Press Ctrl W (to exit the nano editor)

Create the following PHP file to test error_log.

$x = 1;
if ($x != 2) 
    error_log("Example error", 3, "/var/tmp/error.log");


View the error log to ensure the error log contians "Example error":

[root@server1 ]# cat /var/tmp/error.log
Example error


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