未输出插件选项

时间：2020-03-04 作者：Knott

我为wordpress制作了一个插件，添加了两个简单的文本字段选项。这些选项已成功保存在插件选项页面中，但不起作用，它不会输出已保存的选项。

代码如下：

add_action( \'admin_menu\', \'viptips_add_admin_menu\' );
add_action( \'admin_init\', \'viptips_settings_init\' );


function viptips_add_admin_menu(  ) { 
  $icon       = \'dashicons-editor-table\';
    add_menu_page( \'VIP Tips\', \'VIP Tips\', \'manage_options\', \'vip_tips\', \'viptips_options_page\', $icon );

}


function viptips_settings_init(  ) { 

    register_setting( \'pluginPage\', \'viptips_settings\' );

    add_settings_section(
        \'viptips_pluginPage_section\', 
        __( \'Main plugin options\', \'viptips\' ), 
        \'viptips_settings_section_callback\', 
        \'pluginPage\'
    );

    add_settings_field( 
        \'viptips_category_name\', 
        __( \'Category name:\', \'viptips\' ), 
        \'viptips_category_name_render\', 
        \'pluginPage\', 
        \'viptips_pluginPage_section\' 
    );

    add_settings_field( 
        \'viptips_postperpage\', 
        __( \'Number of posts:\', \'viptips\' ), 
        \'viptips_postperpage_render\', 
        \'pluginPage\', 
        \'viptips_pluginPage_section\' 
    );


}


function viptips_category_name_render(  ) { 

    $options = get_option( \'viptips_settings\' );
    ?>
  <input type=\'text\' name=\'viptips_settings[viptips_category_name]\' value=\'<?php echo $options[\'viptips_category_name\']; ?>\'>
  <p class="description" id="tagline-description">Name of the category that contains predictions</p>
    <?php

}


function viptips_postperpage_render(  ) { 

    $options = get_option( \'viptips_settings\' );
    ?>
  <input type=\'number\' name=\'viptips_settings[viptips_postperpage]\' value=\'<?php echo $options[\'viptips_postperpage\']; ?>\'>
  <p class="description" id="tagline-description">Number of posts to be displayed in table.</p>
    <?php

}


function viptips_settings_section_callback(  ) { 

    echo __( \'Don\\\'t forget to use the <strong>[tabscat]</strong> shortcode, in the page you want the tips table to be displayed!*\', \'viptips\' );

}


function viptips_options_page(  ) { 

        ?>
        <form action=\'options.php\' method=\'post\'>

            <h1>VIP Tips</h1>

            <?php
            settings_fields( \'pluginPage\' );
            do_settings_sections( \'pluginPage\' );
            submit_button();
            ?>

        </form>
        <?php

}

要输出保存的选项，我使用：

$category_name = get_option(\'viptips_category_name\');
$postperpage = get_option(\'viptips_postperpage\');


    $args = array(
     \'post_type\' => \'post\',
     \'post_status\' => \'publish\',
     \'category_name\' => $category_name,
     \'post_per_page\' => $postperpage
     );

我哪里出错了？

2 个回复

最合适的回答,由SO网友:Sally CJ 整理而成

Basically, you\'re not using the correct option name.

在您的viptips_settings_init() 函数，则使用名称viptips_settings 当registering the setting:

// The syntax is: register_setting( \'<settings group name>\', \'<database option name>\' )
register_setting( \'pluginPage\', \'viptips_settings\' );

WordPress会用这个viptips_settings 保存选项时(i.e. update_option( \'viptips_settings\', \'<value>\' )) 因此，在从数据库获取选项时，无论该选项是一个值数组还是一个值，都应该使用相同的名称：

具有值数组的输入：

<input type=\'text\' name=\'viptips_settings[viptips_category_name]\' ...>
<input type=\'number\' name=\'viptips_settings[viptips_postperpage]\' ...>

<input type=\'text\' name=\'viptips_settings\' ...>

$category_name 和$postperpage 变量，可以执行以下操作（但请确保实际设置了数组键/项）：

$options = (array) get_option( \'viptips_settings\' );

$args = array(
    \'post_type\'     => \'post\',
    \'post_status\'   => \'publish\',
    \'category_name\' => $options[\'viptips_category_name\'],
    \'post_per_page\' => $options[\'viptips_postperpage\']
);

如果您的代码中包含以下内容：

PHP

// Here we\'ve got two different database option names.
register_setting( \'pluginPage\', \'viptips_category_name\' );
register_setting( \'pluginPage\', \'viptips_postperpage\' );

<!-- And here two different input names; both not array -->
<input type=\'text\' name=\'viptips_category_name\' ...>
<input type=\'number\' name=\'viptips_postperpage\' ...>

那么您的代码或此代码可以工作：

$category_name = get_option( \'viptips_category_name\' );
$postperpage = get_option( \'viptips_postperpage\' );

因此，我希望这个（修改后的）答案对你（更多）和其他人也有帮助。：）

SO网友:Chetan Vaghela

你必须使用viptips_settings 获取值的选项。它将返回数组，您可以使用下面的代码获得这两个值。

$options = get_option(\'viptips_settings\');
$category_name = $options[\'viptips_category_name\'];
$postperpage = $options[\'viptips_postperpage\'];


    $args = array(
     \'post_type\' => \'post\',
     \'post_status\' => \'publish\',
     \'category_name\' => $category_name,
     \'post_per_page\' => $postperpage
     );

小码农CODE

未输出插件选项

相关推荐

Testing Plugins for Multisite