我想我会等待这样一个插件

将此代码保存在名为set-cookie-expire.php 并将其上载到您的插件文件夹。

该插件将使您能够在WordPress设置管理中设置Cookie过期的时间（以天为单位）。

<?php

/**
 * Plugin Name: Set Cookie Expire
 * Plugin URI:  http://wordpress.stackexchange.com/a/11991/1685
 * Version:     0.1
 * Description: Set the expire time for cookies in your <a href="options-general.php">general settings</a>.
 * Author:      WordPress Development Stack Exchange
 * Author URI:  http://wordpress.stackexchange.com/a/11991/1685
 */

/**
 * Set our user-specified expire times.
 *
 * @param  int $default
 * @param  int $user_id
 * @param  bool $remember
 * @return int
 */
function wpse_11979_set_cookie_expire( $default, $user_id, $remember ) {
    $days = get_option( $remember ? \'remember_cookie_expire\' : \'normal_cookie_expire\' );

    if ( $days === false )
        $days = $remember ? 14 : 2;
    else
        $days = ( int ) $days;

    return $days * DAY_IN_SECONDS;
}

add_filter( \'auth_cookie_expiration\', \'wpse_11979_set_cookie_expire\', 10, 3 );

/**
 * Register settings.
 */
function wpse_11979_set_cookie_expire_settings() {
    $settings = array(
        \'normal_cookie_expire\'   => \'Normal Cookie Expire\',
        \'remember_cookie_expire\' => \'Remember Cookie Expire\',
    );

    foreach ( $settings as $id => $label ) {
        add_settings_field(
            $id,
            $label,
            \'wpse_11979_set_cookie_expire_field\',
            \'general\',
            \'default\',
            array(
                \'label_for\' => $id,
            )
        );

        register_setting( \'general\', $id, \'absint\' );
    }
}

add_action( \'admin_init\', \'wpse_11979_set_cookie_expire_settings\' );

/**
 * Render settings field.
 *
 * @param array $args
 */
function wpse_11979_set_cookie_expire_field( $args ) {
    $id = $args[\'label_for\'];

    printf(
        \'<input id="%2$s" type="text" name="%2$s" value="%1$d" class="small-text" /> days\',
        ( int ) get_option( $id, $id === \'normal_cookie_expire\' ? 2 : 14 ),
        $id
    );
}