Php 在插件短标签中添加customfield

我正在使用wordpress插件短标签，它需要一个字段来通过自定义字段加载。我想知道如何在插件php代码中回显customfield。我是php的初学者，因此无法理解：

这是我的密码：

<?php

$custom_fields = get_post_custom();
$my_custom_field = $custom_fields['donationbar'];
foreach ( $my_custom_field as $value )
    echo "$value"; ### <-- that value

我想在

目标id

中加载

$value

。这样，我只需要在自定义字段中添加目标ID，其余的将硬编码到主题中。

哈哈，我想我明白了

以下是工作代码：

$custom_fields = get_post_custom();
$my_custom_field = $custom_fields['donationbar'];
foreach ( $my_custom_field as $value )

donation_can_donation_form(
    $goal_id = $value, $show_progress = true, $show_description = false,
    $show_donations = false, $show_title = false, $title = "", $return = false
);

$custom_fields = get_post_custom();
$my_custom_field = $custom_fields['donationbar'];
foreach ( $my_custom_field as $value )

donation_can_donation_form(
    $goal_id = $value, $show_progress = true, $show_description = false,
    $show_donations = false, $show_title = false, $title = "", $return = false
);