Title: PHP Warning
Last modified: November 6, 2020

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# PHP Warning

 *  Resolved [leveluplifecoaching](https://wordpress.org/support/users/leveluplifecoaching/)
 * (@leveluplifecoaching)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/php-warning-216/)
 * Hi there,
 * I noticed the following in WP debug log:
 * PHP Warning: session_start(): Cannot start session when headers already sent 
   in /usr/www/users/xxx/wp-content/plugins/salon-booking-system/salon.php on line
   84
 * What does this mean?
 * Thank you.
    -  This topic was modified 5 years, 4 months ago by [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/).
    -  This topic was modified 5 years, 4 months ago by [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/).

The topic ‘PHP Warning’ is closed to new replies.

 * ![](https://ps.w.org/salon-booking-system/assets/icon-256x256.gif?rev=3214950)
 * [Salon Booking System - Free Version](https://wordpress.org/plugins/salon-booking-system/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/salon-booking-system/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/salon-booking-system/)
 * [Active Topics](https://wordpress.org/support/plugin/salon-booking-system/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/salon-booking-system/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/salon-booking-system/reviews/)

## Tags

 * [php](https://wordpress.org/support/topic-tag/php/)
 * [salonbooking](https://wordpress.org/support/topic-tag/salonbooking/)

 * 0 replies
 * 1 participant
 * Last reply from: [leveluplifecoaching](https://wordpress.org/support/users/leveluplifecoaching/)
 * Last activity: [6 years, 4 months ago](https://wordpress.org/support/topic/php-warning-216/)
 * Status: resolved