查看wordpress上的示例。组织机构

update\\u post\\u meta（$post\\u id，$meta\\u key，$meta\\u value，$prev\\u value）；

我似乎在用变量替换$meta\\u键时遇到了问题。这是我的密码

Part 1

设置$周

<form action="#" method="post">
<select name="Week">
<option value="week_1">1</option>
<option value="week_2">2</option>
<option value="week_3">3</option>
<option value="week_4">4</option>
<option value="week_5">5</option>
<option value="week_6">6</option>
<option value="week_7">7</option>
<option value="week_8">8</option>
</select>
<button class="btn btn-lg btn-primary" type="submit" name="submit" value="Selected a Week" >Selected a Week</button>
</form>
<?php
if(isset($_POST[\'submit\'])){
$week = $_POST[\'Week\'];  // Storing Selected Value In Variable
echo "You have selected : ".$week." to be edited";  // Displaying Selected Value
}
?>

如果你回显$周，一切都好。

Part 2

$current_post   =   $post->ID;
$title          =   get_the_title();
$s1             =   $title . "s1";

$week_s1        =   "_member_score_".$week._s1";
$post_information = array(
// Look at this //
\'ID\'            =>  $current_post,
\'post_title\'    =>  $title,
\'post-type\'     =>  \'CTP-Name\',
\'post_status\'   =>  \'publish\',
);
$pidac = wp_update_post($post_information);
if($pidac)
{
update_post_meta($pidac, $week_s1, $_POST[$s1]);
$term_ids = array( 2, 7 );
$taxonomy = \'Custom-Taxonomy\';
wp_set_object_terms( $pidac, $term_ids, $taxonomy );
// Redirect
wp_redirect( home_url() );
}
}

如果您回显$week\\u s1，一切正常

如果将变量$week\\u s1替换为键入的值“\\u member\\u score\\u week\\u 1\\u s1”，则代码工作正常。下面是一个例子

update_post_meta($pidac, "_member_score_week_1_s1" , $_POST[$s1]);

有人能告诉我如何在这段代码中使用（$week\\u s1）变量吗。

$week_s1="_member_score_".$week._s1";

$week_s1 ="_member_score_".$week."_s1";