antoineJ-3

Problem:
The client wants to change/translate the default language text that was coming from PHP files.

Solution:
If you want to update the default language strings from the WPML interface without updating from the PHP files where they actually exist, please follow the below steps:

1. Let’s suppose you have defined the below string in the PHP file:

<?php echo __('English language text', 'themedomain'); ?>

And now you want to update this text in the English language.

2. Please go to WPML >> String Translation page and select the above string and choose some dummy language that you will not use on your site from the “Change the language of selected strings” dropdown.

3. Then you can update the text in the English language.

Relevant Documentation:
https://wpml.org/documentation/getting-started-guide/string-translation/how-to-change-the-source-language-of-strings/