mjb566

Thanks, can’t quite get my head around that but will give it a go.

Thanks Leo,The recommended image size assures that image placement is optimal within the theme I am using, i.e no distortion in the thumbnails, featured image etc. Obviously a small image chosen as the featured image would see it getting stretched to fit the placeholder. Hence, I am interested to know of any recommendation for the uploaded image before WordPress gets to work creating the different sizes needed for a theme.

Are you saying the GP has no minimum image size or ratio such as 16:9?
Thanks

@petergo1

Can you open files on the server? if yes, then look for the folder names wp-includes.

Open wp-includes and near the bottom of the files listed, you will see wp-db.php
Open wp-db.php and around line 1657 you will see the line of code to amend.

If you don’t have a file editor, try something free such as Notepad++ as it lists line numbers.

HTH,
Mickey

@ichigo-branding

Full line is –
$result = @preg_match( $pattern, $host, $matches );

@ichigo-branding
@petergo1
@rajanit2000

Just a quick message to confirm that Rajan’s fix has restored my website perfectly! Thank you to Rajan for patiently waiting all day for me to sort out ftp access. Your help with this problem has been sensational and I am very grateful to you for your kind help.

@petergo1

Hi Peter,
Sadly not. I have put back version 4.9.1 of the wp-db.php file
Still working on the problem, if I find a solution I will let you know ??

@petergo1

Rajan Vi has been in touch, he will see if he can help shortly.

@rajanit2000

@petergo1

My site is fine with wp-db.php from version 4.9.1
The error occurs as soon as wp-db.php from 4.9.2 is uploaded. Te reported error refers to an unrecognized character but there is not one in the file on or near the line reported 1657.

After reading a possibility was that the file had not been uploaded in plain UTF-8, I downloaded Notepad++ and checked the encoding but found it to be correct.

I have exactly the same theme and WordPress install working perfectly on another web-space provider so am wondering if the php version is the culprit?

My provider is using PHP 5* whereas the provider where the install works fine is using PHP 7*

I don’t know the answer at the moment.

Hi Rajan,
I have just now deleted and re-installed a fresh 4.9.2 less the config file and content folder. I have deactivated all plugins and changed the theme. I am still getting the error message – Warning: preg_match(): Compilation failed: unrecognized character after (?< at offset 4 in /web1/user/website/wp-includes/wp-db.php on line 1657

Hi Rajan,
Thanks for coming back ?? I tried the complete re-install option as described an hour ago, unfortunately, it made no difference. I will try it again. I have also changed themes but that made no difference either.

Hi,
I have deactivated all plugins but with 4.9.2 am still getting the error message – Warning: preg_match(): Compilation failed: unrecognized character after (?< at offset 4 in /web1/user/website/wp-includes/wp-db.php on line 1657

Hi,
I have uploaded all of the new files from 4.9.2 with the exception of the config.php and wp-content folder files. Still the error persists until I remove the new wp-db.php file.

Any new ideas would be appreciated, thanks.

I had the same issue with wp-db.php in 4.9.2, it broke my site.

Hi Rajan,
The version is 4.9.2 but I have replaced wp-db.php with the version from 4.9.1, if I upload the new version of wp-db.php then the site crashes.