如何通过function.php

Question

public static function getCatalogStrings()
    {
        return [
            'booking_appointment'    => __('Booking Appointment', 'wpamelia'),
            'buffer_time'            => __('Buffer Time', 'wpamelia'),
            'categories'             => __('Categories', 'wpamelia'),
            'category_colon'         => __('Category:', 'wpamelia'),
            'description'            => __('Description', 'wpamelia'),
            'description_colon'      => __('Description:', 'wpamelia'),
            'extras'                 => __('Extras', 'wpamelia'),
            'info'                   => __('Info', 'wpamelia'),
            'maximum_quantity_colon' => __('Maximum Quantity:', 'wpamelia'),
            'view_more'              => __('View More', 'wpamelia'),
        ];
    }
Above code is written in plugin. I want to write 'Book now' instead of 'View More' through function.php without editting plugin. 

以上代码是用插件编写的。我想通过function.php编写“立即预订”而不是“查看更多”，而无需编辑插件。

Answer 1

使用gettext过滤器。

示例：

function prefix_filter_gettext( $translated, $original, $domain ) {

    if ( $domain == 'wpamelia' ){
       // Use the text string exactly as it is in the translation file
       if ( $translated == 'View More' ) {
           $translated = 'Book now';
       }
    }

    return $translated;
}
add_filter( 'gettext', 'prefix_filter_gettext', 10, 3 );