Arrays: added wrap() method

[milo]

• new feature
• BC break? no
• doc PR: will

I'm using such conctruction quite often, maybe I'm not the only one.

[milo]

Maybe implement it by

count($arr) ? ($prefix . implode($suffix . $glue . $prefix, $arr) . $suffix) : '';

but crucial is an API. No need for array count condition and prefix/suffix on single place.

[dg]

What about method wrap($arr, $prefix, $suffix)? And than combine implode with wrap?

[milo]

Sure, wrap() is better approach. Updated.

Not sure about type casting everything to string.

[dg]

Great

[milo]

Thank you!