Question

Here is sample text-

display_errors = On
display_errors= Off
display_errors = On

I would like to extract the value of last display_errors. How do I do that?

So far, I’ve display_errors =(?!.*display_errors = ) which is able to match display_errors = but I want its value, not the key.

I am using libpcre for matching with . matches all option

Please note I’ve to use regex and not any .ini parsing library.

Answer 1

Try the following:

display_errors\s*=\s*([a-zA-Z]+)(?!.*display_errors\s*=)

That should match the last value for the display_errors key, assuming the values are characters a-z (but the accepting-character list can easily be updated if needed).