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Description

Get all available languages based on the presence of *.mo files in a given directory.

The default directory is WP_LANG_DIR.

Usage

$string[] = get_available_languages( $dir );

Parameters

$dir

( string ) optional – A directory to search for language files. Default WP_LANG_DIR.

Returns

string[] An array of language codes or an empty array if no languages are present. Language codes are formed by stripping the .mo extension from the language file names.

Source

File name: wordpress/wp-includes/l10n.php
Lines:

function get_available_languages( $dir = null ) {
  $languages = array();

  $lang_files = glob( ( is_null( $dir ) ? WP_LANG_DIR : $dir ) . '/*.mo' );
  if ( $lang_files ) {
    foreach ( $lang_files as $lang_file ) {
      $lang_file = basename( $lang_file, '.mo' );
      if ( 0 !== strpos( $lang_file, 'continents-cities' ) && 0 !== strpos( $lang_file, 'ms-' ) &&
        0 !== strpos( $lang_file, 'admin-' ) ) {
        $languages[] = $lang_file;
      }
    }
  }

  
/**
 * Filters the list of available language codes.
 *
 * @since 4.7.0
 *
 * @param string[] $languages An array of available language codes.
 * @param string   $dir       The directory where the language files were found.
 */
  return apply_filters( 'get_available_languages', $languages, $dir );
}
 

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