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Description

Returns an array of WP_Theme objects based on the arguments.

Despite advances over get_themes(), this function is quite expensive, and grows linearly with additional themes. Stick to wp_get_theme() if possible.

Usage

$WP_Theme[] = wp_get_themes( $args );

Parameters

$args

( array ) optional – { Optional. The search arguments.

$errors

( mixed ) optional – True to return themes with errors, false to return themes without errors, null to return all themes. Default false.

$allowed

( mixed ) optional – (Multisite) True to return only allowed themes for a site. False to return only disallowed themes for a site. 'site' to return only site-allowed themes. 'network' to return only network-allowed themes. Null to return all themes. Default null.

$blog_id

( int ) optional – (Multisite) The blog ID used to calculate which themes are allowed. Default 0, synonymous for the current blog. }

Returns

WP_Theme[] Array of WP_Theme objects.

Source

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

function wp_get_themes( $args = array() ) {
  global $wp_theme_directories;

  $defaults = array(
    'errors'  => false,
    'allowed' => null,
    'blog_id' => 0,
  );
  $args     = wp_parse_args( $args, $defaults );

  $theme_directories = search_theme_directories();

  if ( is_array( $wp_theme_directories ) && count( $wp_theme_directories ) > 1 ) {
    // Make sure the active theme wins out, in case search_theme_directories() picks the wrong
    // one in the case of a conflict. (Normally, last registered theme root wins.)
    $current_theme = get_stylesheet();
    if ( isset( $theme_directories[ $current_theme ] ) ) {
      $root_of_current_theme = get_raw_theme_root( $current_theme );
      if ( ! in_array( $root_of_current_theme, $wp_theme_directories, true ) ) {
        $root_of_current_theme = WP_CONTENT_DIR . $root_of_current_theme;
      }
      $theme_directories[ $current_theme ]['theme_root'] = $root_of_current_theme;
    }
  }

  if ( empty( $theme_directories ) ) {
    return array();
  }

  if ( is_multisite() && null !== $args['allowed'] ) {
    $allowed = $args['allowed'];
    if ( 'network' === $allowed ) {
      $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed_on_network() );
    } elseif ( 'site' === $allowed ) {
      $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed_on_site( $args['blog_id'] ) );
    } elseif ( $allowed ) {
      $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed( $args['blog_id'] ) );
    } else {
      $theme_directories = array_diff_key( $theme_directories, WP_Theme::get_allowed( $args['blog_id'] ) );
    }
  }

  $themes         = array();
  static $_themes = array();

  foreach ( $theme_directories as $theme => $theme_root ) {
    if ( isset( $_themes[ $theme_root['theme_root'] . '/' . $theme ] ) ) {
      $themes[ $theme ] = $_themes[ $theme_root['theme_root'] . '/' . $theme ];
    } else {
      $themes[ $theme ] = new WP_Theme( $theme, $theme_root['theme_root'] );

      $_themes[ $theme_root['theme_root'] . '/' . $theme ] = $themes[ $theme ];
    }
  }

  if ( null !== $args['errors'] ) {
    foreach ( $themes as $theme => $wp_theme ) {
      if ( $wp_theme->errors() != $args['errors'] ) {
        unset( $themes[ $theme ] );
      }
    }
  }

  return $themes;
}
 

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