What does `WP_DEBUG_LOG` do when set to true in wp-config.php?

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What does `WP_DEBUG_LOG` do when set to true in wp-config.php?

Key points

  • `WP_DEBUG_LOG` saves errors to debug.log
  • Helpful for debugging PHP issues
  • Errors are not displayed on the browser screen
  • Different from sending error notifications via email

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