WP_Scripts::localize( string $handle, string $object_name, array $l10n )

	public function localize( $handle, $object_name, $l10n ) {
		if ( $handle === 'jquery' )
			$handle = 'jquery-core';

		if ( is_array($l10n) && isset($l10n['l10n_print_after']) ) { // back compat, preserve the code in 'l10n_print_after' if present
			$after = $l10n['l10n_print_after'];
			unset($l10n['l10n_print_after']);
		}

		foreach ( (array) $l10n as $key => $value ) {
			if ( !is_scalar($value) )
				continue;

			$l10n[$key] = html_entity_decode( (string) $value, ENT_QUOTES, 'UTF-8');
		}

		$script = "var $object_name = " . wp_json_encode( $l10n ) . ';';

		if ( !empty($after) )
			$script .= "\n$after;";

		$data = $this->get_data( $handle, 'data' );

		if ( !empty( $data ) )
			$script = "$data\n$script";

		return $this->add_data( $handle, 'data', $script );
	}