Trying to update PHP from 7.3.29 to 7.4.21 on some old sites (5). Would prefer to continue using Gantry 4 if possible, no budget to refresh these sites.
After updating PHP version, I get the following error:Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in ...libraries/gantry/core/gantry.class.php on line 1044.
This is the line at 1044:$options_string = implode("\n", $tmp_options);
I assumed swapping the parameter order was what was needed based on something I saw in github, but the error persists.
Sites are on latest Gantry 4 release (4.1.43) and latest RT G4 version of theme. What's odd is I have a couple RT G4 sites that don't throw an error on PHP 7.4.21.