How to do error logging in CodeIgniter (PHP)

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CodeIgniter has some error logging functions built in.

  • Make your /application/logs folder writable
  • In /application/config/config.php set
    $config['log_threshold'] = 1;
    or use a higher number, depending on how much detail you want in your logs
  • Use log_message('error', 'Some variable did not contain a value.');
  • To send an email you need to extend the core CI_Exceptions class method log_exceptions(). You can do this yourself or use this. More info on extending the core here

See http://www.codeigniter.com/user_guide/general/errors.html

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