Debugging Magento Issues

Occasionally there is a need to debug some Magento problem you may be experiencing.
  1. Enable error reporting
    In Magento’s index.php¬†uncomment the following:

    #ini_set('display_errors', 1);
  2. Turn on Magento Developer logging.
    In Magento admin System -> Configuration -> Advanced -> Developer -> Log Settings set Enabled = Yes
    This allows you to look in the magento/var/log/* log files for any errors
  3. Look at server error logs.
    On Red Hat /var/log/httpd/error_log
If problems persist try:
  • Turn off Magento cache from admin
    System -> Cache Management then Select All then Select Action – Disable followed by Submit
  • Re-Index Magento
    System -> Index Management then Select All and then Submit
  • Unmerge Javascript and CSS files
    In Magento admin System -> Configuration -> Advanced -> Developer -> Javascript Settings set Merge Javascript Files = No
    In Magento admin System -> Configuration -> Advanced -> Developer -> CSS Settings set Merge CSS Files = No
  • Use php’s var_export() function within your code. Combine it with php’s error_log() function to display errors in your server error_log.

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