不确定这是否是 WordPress 问题,但我不这么认为。
我有一个while
循环,我正在迭代用户创建的内容循环并尝试获取一个元字段,该字段具有一个与当前“键”匹配的数字标识符(如果你可以这样称呼它,因为这不是数组,只是用户可以使用一些前端参数创建的自定义循环。 $this_label_url
通过插值请求虚假“密钥” $this_label_url = get_post_meta($post->ID, 'instructor_{$number}_label_url', true);
。在这种情况下,变量插值是不可能的吗?
<?php
$total_panels = get_post_meta( $post->ID, 'total_panels', true ); // set by the user with a custom meta value called "total_panels" (an integer)
$count = 1; // just a fake "key" for looping through my `while`
// create a faux "number" - simply takes $count and adds leading zero if not present
while ( $total_panels >= $count ) :
if ( $count >= 9 ) {
$number = '0' . $count;
} else {
$number = $count;
}
$this_label_url = get_post_meta($post->ID, 'instructor_{$number}_label_url', true); // returns as an empty string,