Fixed bug for using Listo with ContactForm7

Hi all,

Here is a fix for using Listo with ContactForm7 forms containing Select fields. Actually, it’s just a fix for Select fields in ContactForm7 but it makes Listo work as it is meant to.

First, I should mention I raised this issue in 2022 and fixed it myself, after the plugin author Takayuki Miyoshi did not respond. He still hasn’t responded. This made me angry.

I had disabled updates since fixing it, fearing this issue would come back and recently it did. Somehow the system updated all plugins. The bug is still there and this broke the form on the site. I had to fix it again and I want others to be able to use these plugins together, in the way that the documentation says they are supposed to work (but don’t). See this post for details on how the two plugins don’t work as advertised: https://www.ads-software.com/support/topic/select-list-values-not-appearing/

The answer is to change the line of code at line 75 in …./wp-content/plugins/contact-form-7/modules/select.php

Change $tag->values = array_merge( $tag->values, array_values( $data ) );
To read $tag->values = array_merge( $tag->values, array_keys( $data ) );

Now the select field will have the keys as values, instead of the label as both name and the value. You’re welcome, Takayuki! Enjoy!