WordPress PolyLang translate shortcode & function - use in customizer texts

functions.php

<?php
// If Polylang is active, hook function on the admin pages
if ( function_exists( 'pll_register_string' ) ) add_action( 'admin_init', 'pll_tc_strings_setup' );
function pll_tc_strings_setup() {
  // Add text to Polylang's string translation panel
  pll_register_string( 'fl-topbar-col1-text', 'Contact_Data', 'wipi', true );
  pll_register_string( 'fl-arrow-breadcrumbs', 'arrow_mulilang', 'wipi', true );
}

function polylanguage_shortcode( $atts ) {
  $atts = shortcode_atts(
      array(
          'text'           => '',
          'lang'           => pll_current_language()
      ),
      $atts
  );
  return pll_translate_string( $atts['text'], $atts['lang'] );
}
add_shortcode( 'pll_translate', 'polylanguage_shortcode' );

I have paste the code in functions.php. Now, How I edit the labels of shortcodes? Thanks.

Hey,
The usage of the shortcode is anywhere when you have an input fields to set text like this:

Without a specific lang (get current language automatically):

[pll_translate text="This text will translate"]

With a specific lang:

[pll_translate text="This text will translate" lang="en"]

To add optional labels is via the function above pll_tc_strings_setup, you need to define there all your strings, I put for example:

pll_register_string( 'fl-topbar-col1-text', 'Contact_Data', 'wipi', true );
pll_register_string( 'fl-arrow-breadcrumbs', 'arrow_mulilang', 'wipi', true );

After definition of the string labels, you can translate it via Polylang translation panel on WP Admin dashboard.

BTW, 'wipi' is the name of your theme text-domain, this gist originally suppose to be for Wipi theme.