Wordpress Custom Fields 自定义字段使用

by: ponytail @ 06 五, 2010 in: ┨Skill ,┨Stuuuuuuuudy

wordpress是好物，我的大爱，啥都能做了,最近算是转型期，不知道转不转的过弯来，有用的东西先记录一下~~

1. 设定过期时间

<?php
if (have_posts()) :
while (have_posts()) : the_post(); ?>
$expirationtime = get_post_custom_values(‘expiration’);
if (is_array($expirationtime)) {
$expirestring = implode($expirationtime);}
$secondsbetween = strtotime($expirestring)-time();
if ( $secondsbetween > 0 ) {
// For example…
the_title();
the_excerpt();
}
endwhile;
endif;?>

2.区分日志显示方式

<?php if (have_posts()) :
while (have_posts()) : the_post();
$customField = get_post_custom_values(“full”);
if (isset($customField[0])) {
//Custom field is set, display a full post
the_title();
the_content();
} else {
// No custom field set, let’s display an excerpt
the_title();
the_excerpt();
endwhile;
endif;
?>

3.设定页面META内容

4.设置特殊的CSS

<?php if (is_single()) {
$css = get_post_meta($post->ID, ‘css’, true);
if (!empty($css)) { ?>
<style type=”text/css”>
<?php echo $css; ?>
<style>
<?php }
} ?>

5. SEO Title优化

6.设定不被搜索引擎搜索

<?php $cf = get_post_meta($post->ID, ‘noindex’, true);
if (!empty($cf)) {
echo ‘<meta name=”robots” content=”noindex”/>’;
}
?>

7.使用缩略图（2.9+自带了）

<?php $postimageurl = get_post_meta($post->ID, ‘post-img’, true);
if ($postimageurl) {?>
<a href=”<?php the_permalink(); ?>” rel=”bookmark”>
<img src=”<?php echo $postimageurl; ?>” alt=”Post Pic” /></a>
<?php } else { ?>
<a href=”<?php the_permalink(); ?>” rel=”bookmark”>
<img src=”<?php bloginfo(‘template_url’); ?>/images/wprecipes.gif” alt=”Screenshot” /></a>
<?php } ?>

8.个性化的read more

<?php $custommore = get_post_meta($post->ID, ‘custom_more’, true); ?>
<?php if (!$custommore) { $custommore = ‘Read More »’; } ?>
<?php the_content($custommore); ?>

9.设置个性化背景（与timthumb结合）

<?php if (is_page() || is_single()) {
<?php $background = get_post_meta($post->ID, ‘background’, true);
if ($background) {?>
<style type=”text/css”>background: url(<?php bloginfo(‘template_url’); ?>/timthumb/timthumb.php?w=1920&zc=1&src=<?php echo $background; ?>) fixed no-repeat;</style>
<?php }
}?>

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