所以标题有点不清楚，但我有：
自定义贴子类型：项目自定义贴子类型：投资 ；+自定义字段：金额
我有一个页面，在其中我将投资+金额加载到一个自定义的post类型循环中，所以它看起来像这样：表：
____________________________________________
| custom post type 1 | amount 1 |
|____________________|_____________________|
| custom post type 2 | amount 2 |
|____________________|_____________________|
现在我要做的是计算金额1+金额2的总额
顺便说一句，我使用的代码是：
<?php
if ( is_user_logged_in() ):
global $current_user;
get_currentuserinfo();
$author_query = array(\'posts_per_page\' => \'-1\',\'author\' => $current_user->ID, \'post_type\' => \'investeringen\');
$author_posts = new WP_Query($author_query);
while($author_posts->have_posts()) : $author_posts->the_post();
$parent_id = wpcf_pr_post_get_belongs(get_the_ID(), \'project\');
$parent = get_post($parent_id);
$percentagenumber = do_shortcode("[types field=\'rente\' id=\'$parent_id\']");
$geinvesteerd = types_render_field("geinvesterd", array( "raw" => "true") );
$opgebracht = $geinvesteerd / 100 * $percentagenumber; //
?>
<tr>
<td class="project">
<?php
$parent_id = wpcf_pr_post_get_belongs(get_the_ID(), \'project\');
if (!empty($parent_id)) {
$parent = get_post($parent_id);
echo $parent->post_title;
}
?>
</td>
<td class="demo">€ <?php echo number_format("$geinvesteerd",0,",","."); ?>,-</td>
<td>€ <?php echo number_format("$opgebracht",0,",","."); ?>,-</td>
<td>
<?php
echo number_format("$percentagenumber", 2, \'.\', \'\') . \' %\';
?>
</td>
<td><a href="
<?php
$parent_id = wpcf_pr_post_get_belongs(get_the_ID(), \'project\');
if (!empty($parent_id)) {
$parent = get_post($parent_id);
echo post_permalink($parent_id);
}
?>
"><img src="<?php echo get_stylesheet_directory_uri(); ?>/images/meta_icons/eye.png" /></a></td>
</tr>
<?php
global $count;
$count = $author_posts->post_count;
endwhile;
else :
?>
<tr>
<td colspan="5" style="text-align:left">U moet inloggen voordat u deze pagina / statistieken kunt bekijken</td>
</tr>
<?php
endif;
?>
谢谢你们的阅读，希望你们能帮助我！
最合适的回答,由SO网友:random_user_name 整理而成
这是一个保持总数的问题。因为我对这个问题不是百分之百清楚，下面我将提供您想要做的更改/伪代码：
<?php
if ( is_user_logged_in() ):
global $current_user;
get_currentuserinfo();
// ADDED: Initialize the total variable to prevent warnings
$grandtotal = 0;
$author_query = array(\'posts_per_page\' => \'-1\',\'author\' => $current_user->ID, \'post_type\' => \'investeringen\');
$author_posts = new WP_Query($author_query);
while($author_posts->have_posts()) : $author_posts->the_post();
$parent_id = wpcf_pr_post_get_belongs(get_the_ID(), \'project\');
$parent = get_post($parent_id);
$percentagenumber = do_shortcode("[types field=\'rente\' id=\'$parent_id\']");
$geinvesteerd = types_render_field("geinvesterd", array( "raw" => "true") );
$opgebracht = $geinvesteerd / 100 * $percentagenumber; //
// ADDED: Add this to the running total
$grandtotal+= $geinvesteerd;
?>
<tr>
<td class="project">
<?php
$parent_id = wpcf_pr_post_get_belongs(get_the_ID(), \'project\');
if (!empty($parent_id)) {
$parent = get_post($parent_id);
echo $parent->post_title;
}
?>
</td>
<td class="demo">€ <?php echo number_format("$geinvesteerd",0,",","."); ?>,-</td>
<td>€ <?php echo number_format("$opgebracht",0,",","."); ?>,-</td>
<td>
<?php
echo number_format("$percentagenumber", 2, \'.\', \'\') . \' %\';
?>
</td>
<td><a href="
<?php
$parent_id = wpcf_pr_post_get_belongs(get_the_ID(), \'project\');
if (!empty($parent_id)) {
$parent = get_post($parent_id);
echo post_permalink($parent_id);
}
?>
"><img src="<?php echo get_stylesheet_directory_uri(); ?>/images/meta_icons/eye.png" /></a></td>
</tr>
<?php
global $count;
$count = $author_posts->post_count;
endwhile;
// ADDED: Output the grand total here
?>
<tr><td>TOTAL</td><td><?php echo number_format($grandtotal, 0, ",", "."); ?></td><td colspan="3"> </td></tr>
<?php
else :
?>
<tr>
<td colspan="5" style="text-align:left">U moet inloggen voordat u deze pagina / statistieken kunt bekijken</td>
</tr>
<?php
endif;
?>
