warning after php update

and this when i try tu update a product in my shop

Warning: Use of undefined constant ‘CONCATENATE_SCRIPTS’ - assumed '‘CONCATENATE_SCRIPTS’' (this will throw an Error in a future version of PHP) in /customers/f/b/7/myname.com/httpd.www/shop/wp-config.php on line 79 Warning: Cannot modify header information - headers already sent by (output started at /customers/f/b/7/myname.com/httpd.www/shop/wp-config.php:79) in /customers/f/b/7/myname.com/httpd.www/shop/wp-admin/includes/misc.php on line 1126 Warning: Cannot modify header information - headers already sent by (output started at /customers/f/b/7/myname.com/httpd.www/shop/wp-config.php:79) in /customers/f/b/7/myname.com/httpd.www/shop/wp-admin/post.php on line 198 Warning: Cannot modify header information - headers already sent by (output started at /customers/f/b/7/myname.com/httpd.www/shop/wp-config.php:79) in /customers/f/b/7/myname.com/httpd.www/shop/wp-includes/pluggable.php on line 1219

It looks like in your wp-config.php file you have something like this:

define( ‘CONCATENATE_SCRIPTS’, false );

The problem is the quote marks. You’re using ‘fancy quotes’, which look like this: ‘’ (compared to ''). This can happen if you copy and paste code like this from a blog or forum post that wasn’t properly written.

You need to replace it with this:

define( 'CONCATENATE_SCRIPTS', false );

Don’t change the true or false part, just the quotes around CONCATENATE_SCRIPTS.

• This reply was modified 6 years, 4 months ago by Jacob Peattie.

output started at /customers/f/b/7/MYNAME.com/httpd.www/shop/wp-config.php:79) in /customers/f/b/7/MYNAME.com/httpd.www/shop/wp-admin/includes/misc.php on line 1126

thx Jacob Peattie, that help, problem fixed