Title: PHP notices
Last modified: June 18, 2023

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# PHP notices

 *  [Dor](https://wordpress.org/support/users/dyos/)
 * (@dyos)
 * [2 years, 10 months ago](https://wordpress.org/support/topic/php-notices-157/)
 * Hey, I have got this PHP notice on my website (using PHP 8.1), I know it’s not
   critical but still.
 * Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string
   is deprecated in /home/…../…../wp-content/plugins/cloudflare/src/WordPress/Hooks.
   php on line 558
 * Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string
   is deprecated in /home/…../…./wp-content/plugins/cloudflare/src/WordPress/Hooks.
   php on line 558
 * Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string
   is deprecated in /home/…../…/wp-content/plugins/cloudflare/src/WordPress/Hooks.
   php on line 558
 * Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string
   is deprecated in /home/…../…/wp-content/plugins/cloudflare/src/WordPress/Hooks.
   php on line 558
 * PHP Warning: Cannot modify header information – headers already sent by (output
   started at /home/…../…./wp-content/plugins/cloudflare/src/WordPress/Hooks.php:
   558) in /home/…../…/wp-includes/pluggable.php on line 1430
 * PHP Warning: Cannot modify header information – headers already sent by (output
   started at /home/…../…./wp-content/plugins/cloudflare/src/WordPress/Hooks.php:
   558) in /home/…../…/wp-admin/post.php on line 231
 * PHP Warning: Cannot modify header information – headers already sent by (output
   started at /home/…../…/wp-content/plugins/cloudflare/src/WordPress/Hooks.php:
   558) in /home/…../…./wp-includes/pluggable.php on line 1427

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 * 0 replies
 * 1 participant
 * Last reply from: [Dor](https://wordpress.org/support/users/dyos/)
 * Last activity: [2 years, 10 months ago](https://wordpress.org/support/topic/php-notices-157/)
 * Status: not resolved