WordPress原创插件：当日24小时发布文章标题变红

<?php

// 添加自定义样式
function title_red_plugin_styles() {
    $current_time = time();
    $post_time = get_the_time('U');
    $time_difference = $current_time - $post_time;

    if ($time_difference < 86400) {
        echo'<style>
            .entry-title a,
            .page-title {
                color: red !important;
            }
        </style>';
    }
}
add_action('wp_head', 'title_red_plugin_styles');