finlabsindia/wp-content/plugins/wordpress-seo/admin/config-ui/fields/class-field-choice.php

<?php
/**
 * WPSEO plugin file.
 *
 * @package WPSEO\Admin\ConfigurationUI
 */

/**
 * Class WPSEO_Config_Field_Choice
 */
class WPSEO_Config_Field_Choice extends WPSEO_Config_Field {

	/**
	 * WPSEO_Config_Field_Choice constructor.
	 *
	 * @param string $field Field name to use.
	 */
	public function __construct( $field ) {
		parent::__construct( $field, 'Choice' );

		$this->properties['choices'] = array();
	}

	/**
	 * Add a choice to the properties
	 *
	 * @param string $value              Value op the option.
	 * @param string $label              Label to display for the value.
	 * @param string $screen_reader_text Optional. Screenreader text to use.
	 */
	public function add_choice( $value, $label, $screen_reader_text = '' ) {
		$choice = array(
			'label' => $label,
		);

		if ( $screen_reader_text ) {
			$choice['screenReaderText'] = $screen_reader_text;
		}

		$this->properties['choices'][ $value ] = $choice;
	}
}