How can debugging techniques like activating a RewriteLog help troubleshoot mod_rewrite issues in PHP?

To troubleshoot mod_rewrite issues in PHP, activating a RewriteLog can help by providing detailed information on how the mod_rewrite module is processing requests. This log can show the rules being applied, the matching process, and any errors encountered during the rewrite process. By analyzing the RewriteLog, developers can pinpoint where the issue lies and make necessary adjustments to their mod_rewrite rules.

RewriteEngine On
RewriteLog "/path/to/rewrite.log"
RewriteLogLevel 3