Title: Fatal Error on PHP8
Last modified: November 3, 2021

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# Fatal Error on PHP8

 *  [edmundspr](https://wordpress.org/support/users/edmundspr/)
 * (@edmundspr)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/fatal-error-on-php8/)
 * 2021-11-03 09:46:00.948975 [NOTICE] [12264] [185.243.215.148:58926-1#Example][
   STDERR] PHP Fatal error: Uncaught TypeError: array_slice(): Argument #3 ($length)
   must be of type ?int, string given in /usr/local/lsws/Example/html/wp-content/
   plugins/recently-viewed-products/includes/rvpclass_view_list.php:25
    Stack trace:#
   0 /usr/local/lsws/Example/html/wp-content/plugins/recently-viewed-products/includes/
   rvpclass_view_list.php(25): array_slice() #1 /usr/local/lsws/Example/html/wp-
   content/plugins/recently-viewed-products/includes/rvpclass_view_list.php(95):
   rvp_view_list->rvp_show() #2 /usr/local/lsws/Example/html/wp-content/plugins/
   recently-viewed-products/includes/rvpclass_view_list.php(123): rvp_view_list-
   >rvp_view_logged_in() #3 /usr/local/lsws/Example/html/wp-content/plugins/recently-
   viewed-products/shortcodes/rvp_shortcodes_view.php(17): rvp_view_list->rvp_view_single_short()#
   4 /usr/local/lsws/Example/html/wp-includes/shortcodes.php(356): {closure}() #
   5 [internal function]: do_shortcode_tag() #6 /usr/local/lsws/Example/html/wp-
   includes/shortcodes.php(228): preg_replace_callback() #7 /usr/local/lsws/Example/
   html/wp-content/themes/sober/woocommerce/single-product.php(22): do_shortcode()#
   8 /usr/local/lsws/Example/html/wp-includes/template-loader.php(106): include(‘…’)#
   9 /usr/local/lsws/Example/html/wp-blog-header.php(19): require_once(‘…’) #10 /
   usr/local/lsws/Example/html/index.php(17): require(‘…’) #11 {main} thrown in /
   usr/local/lsws/Example/html/wp-content/plugins/recently-viewed-products/includes/
   rvpclass_view_list.php on line 25

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 * 0 replies
 * 1 participant
 * Last reply from: [edmundspr](https://wordpress.org/support/users/edmundspr/)
 * Last activity: [4 years, 6 months ago](https://wordpress.org/support/topic/fatal-error-on-php8/)
 * Status: not resolved