更改插件名称下的操作链接的布局

一些插件在插件页面上的名称下放置各种链接。要在下面的单独一行中显示特定插件的每个操作链接this 和this 答案，但我的代码不起作用。我做错了什么？

我将WordPress 4.9.8用于儿童2017主题。

add_action( \'admin_enqueue_scripts\', \'wpse_239302_hide_action_links\' );
function wpse_239302_hide_action_links() {
    global $pagenow; 
    if ( $pagenow == \'plugins.php\' ) {
        ?>
        <style type="text/css">
            tr.active[data-slug="super-socializer"] .row-actions.visible span .1,
            tr.active[data-slug="super-socializer"] .row-actions.visible span .2  { display: block; }
        </style>
        <?php
    }
}

/** Remove action links from the Super Socializer plugin first column **/ const PLUGIN_SLUG = "super-socializer/super_socializer.php"; add_filter("plugin_action_links_" . PLUGIN_SLUG, function ($actions, $plugin_file, $plugin_data, $context) { unset($actions[1]); // remove link "Add-Ons" unset($actions[2]); // remove link "Support Documentation" return $actions; }, 10, 4); /** Add action links to the Super Socializer plugin second column **/ add_filter( \'plugin_row_meta\', \'custom_plugin_row_meta\', 10, 2 ); function custom_plugin_row_meta( $links, $file ) { if( strpos( $file, \'super_socializer.php\' ) !== false ) { $new_links = array( \'addons\' => \'<a href="\' . esc_url( \'https://www.heateor.com/add-ons\' ) . \'" target="_blank" aria-label="\' . esc_attr__( \'Add-Ons\', \'domain\' ) . \'">\' . esc_html__( \'Add-Ons\', \'domain\' ) . \'</a>\', // add link "Add-Ons" \'support\' => \'<a href="\' . esc_url( \'https://www.heateor.com/add-ons\' ) . \'" target="_blank" aria-label="\' . esc_attr__( \'Support Documentation\', \'domain\' ) . \'">\' . esc_html__( \'Support Documentation\', \'domain\' ) . \'</a>\' // add link "Support Documentation" ); $links = array_merge( $links, $new_links ); } return $links; }

const PLUGIN_SLUG = "super-socializer/super_socializer.php"; add_filter("plugin_action_links_" . PLUGIN_SLUG, function (array $actions, string $plugin_file, array $plugin_data, string $context) { unset($actions[1]); // remove link "Add-Ons" unset($actions[2]); // remove link "Support Documentation" return $actions; }, 10, 4);

死亡白屏-wp-admin

我对wp-admin WordPress网站的页面。我已启用错误，并在请求时收到以下警告/wp-admin/:警告：无法修改标题信息-标题已由wp includes/pluggable中的（输出开始于wp config.php:1）发送。php在线1216我已经检查了文件，在wp配置文件的开头没有任何空格。有什么想法吗？

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