我试图在Wordpress中为主题创建一个条件, 如果元存在显示这个...其他显示。
<?php
$scene_trailer = get_post_meta($post->ID, 'scene_trailer', true);
if ( $scene_trailer ) {
echo htmlentities('<div style="width: 645px; height: 364px; overflow: hidden">
<iframe src="http://tvguide.com/<?php $key="scene_number"; echo get_post_meta($post->ID, $key, true); ?>/" width="645" height="430" scrolling="no" frameborder="0" style="position: relative; top: -36px"></iframe></div>');
}
else {
echo '<img src="http://i0.tvguide.com/<?php $key="scene_number"; echo get_post_meta($post->ID, $key, true); ?>/576x324.jpg" width="576" height="324" alt="" />';
}
?>
我的代码以纯文本形式返回:
<div style="width: 645px; height: 364px; overflow: hidden"> <iframe src="http://tvguide.com<?php $key="scene_number"; echo get_post_meta($post->ID, $key, true); ?>/" width="645" height="430" scrolling="no" frameborder="0" style="position: relative; top: -36px"></iframe></div>
有人可以告诉我我做错了什么吗? 谢谢!
答案 0 :(得分:1)
你写错了php语法请尝试下面的代码。
<?php
$scene_trailer = get_post_meta($post->ID, 'scene_trailer', true);
if ($scene_trailer) {
$key = "scene_number";
$scene_number = get_post_meta($post->ID, $key, true);
echo htmlentities('<div style="width: 645px; height: 364px; overflow: hidden">
<iframe src="http://tvguide.com/' . $scene_number . '" width="645" height="430" scrolling="no" frameborder="0" style="position: relative; top: -36px"></iframe></div>');
} else {
echo '<img src="http://i0.tvguide.com/scenes/' . $scene_number . '/576x324.jpg" width="576" height="324" alt="" />';
}
?>