title: Php logging, error-log, and customization
body: <p>I have a large enterprise scale php app with lots of calls to error_log.</p>
  
  <p>I think, at times, when exceptions are being thrown, the error log fills up the disk an causes server issues.</p>
  
  <p>How can I better utilize my logging utilities in php? In particular I don't know much about how the error_log functionalith of php is managed and used in the real world.</p>
  
  <p>Are there other logging mechanisms that are more appropriate? Like an info_log or a log expiration utility that will delete/rotate log files once they get too large?  Finally, can I have multiple log files?</p>