Difference between こんばんは and 今晩わ?

Does anyone know the difference between こんばんは and 今晩わ?

こんばんは is the hiragana --> Greeting For " Good Evening" as we all know

今晩わ is the kanji, but i think its supposed to be written as 今晩は, which supposedly means : This evening is- OR tonight is-, (Well evening is close to night so it makes sense), 

According to internet sources, わ is used for greetings written by young girls usually or something like that. I think its similar to how they say "wakannai". 

https://www.alexrockinjapanese.com/the-meaning-of-konbanwa-in-japanese-basic-greetings/
This also explains a bit on the history and origin for it.

DK26 wrote on Sunday at 9:09 PM

こんばんは is the hiragana --> Greeting For " Good Evening" as we all know

今晩わ is the kanji, but i think its supposed to be written as 今晩は, which supposedly means : This evening is- OR tonight is-, (Well evening is close to night so it makes sense), 

According to internet sources, わ is used for greetings written by young girls usually or something like that. I think its similar to how they say "wakannai". 

https://www.alexrockinjapanese.com/the-meaning-of-konbanwa-in-japanese-basic-greetings/
This also explains a bit on the history and origin for it.

 

This was very helpful. Thanks a lot :)