error under php8

HI.
This great plugin.but when upgrate php7 to php8,add new chart then post to save.there is error:
————–

2021-09-07T03:15:51+00:00 CRITICAL Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given
 in /var/www/html/wordpress/wp-content/plugins/productsize-chart-for-woocommerce/admin/class-productsize-chart-admin.php:2
22
Stack trace:
#0 /var/www/html/wordpress/wp-content/plugins/productsize-chart-for-woocommerce/admin/class-productsize-chart-admin.php(22
2): array_map()
#1 /var/www/html/wordpress/wp-includes/class-wp-hook.php(305): productsize_chart_Admin->productsize_chart_save()
#2 /var/www/html/wordpress/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters()
#3 /var/www/html/wordpress/wp-includes/plugin.php(470): WP_Hook->do_action()
#4 /var/www/html/wordpress/wp-includes/post.php(4468): do_action()
#5 /var/www/html/wordpress/wp-includes/post.php(4570): wp_insert_post()
#6 /var/www/html/wordpress/wp-admin/includes/post.php(423): wp_update_post()
#7 /var/www/html/wordpress/wp-admin/post.php(227): edit_post()
#8 {main}
  thrown in /var/www/html/wordpress/wp-content/plugins/productsize-chart-for-woocommerce/admin/class-productsize-chart-adm
in.php on line 222

2021-09-07T05:39:28+00:00 CRITICAL Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given
 in /var/www/html/wordpress/wp-content/plugins/productsize-chart-for-woocommerce/admin/class-productsize-chart-admin.php:2
22
Stack trace:
#0 /var/www/html/wordpress/wp-content/plugins/productsize-chart-for-woocommerce/admin/class-productsize-chart-admin.php(22
2): array_map()
#1 /var/www/html/wordpress/wp-includes/class-wp-hook.php(305): productsize_chart_Admin->productsize_chart_save()
#2 /var/www/html/wordpress/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters()
#3 /var/www/html/wordpress/wp-includes/plugin.php(470): WP_Hook->do_action()
#4 /var/www/html/wordpress/wp-includes/post.php(4468): do_action()
#5 /var/www/html/wordpress/wp-includes/post.php(4570): wp_insert_post()
#6 /var/www/html/wordpress/wp-admin/includes/post.php(423): wp_update_post()
#7 /var/www/html/wordpress/wp-admin/post.php(227): edit_post()
#8 {main}
  thrown in /var/www/html/wordpress/wp-content/plugins/productsize-chart-for-woocommerce/admin/class-productsize-chart-adm
in.php on line 222

——————-
it’s can not work any more.
and then I choose a “chart catagory”,test again,it’s work fine.
I thinks filed of “chart catagory” is not necessary,I do not think the size chart need to display for the whole catagory。。。。。。

• This topic was modified 3 years, 2 months ago by xiutuo.
• This topic was modified 3 years, 2 months ago by xiutuo.