[英]How can I show the actual “search term” from the content in the post page and display it in wordpress?
我想在搜索结果页面上显示一个句子或几个单词,其中搜索词实际上位于帖子中的内容中并显示它并在搜索词下划线。
对于标题,我做了类似这样的事情:
<?php $title = get_the_title(); $keys= explode(" ",$s); $title = preg_replace('/('.implode('|', $keys) .')/iu', '<u class="search-excerpt">\0</u>', $title); ?>
<h3 class="test"><a href="<?php the_permalink(); ?>"><?php echo $title; ?></a></h3>
如何从帖子内容页面的实际“搜索词”中显示大约15个字左右并显示它?
例如,我想做类似的:
搜索词= omnis
显示这个= Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque
谢谢一堆,
有点找到答案: http : //atastypixel.com/blog/keeping-blog-visitors-by-showing-meaningful-search-results-in-wordpress/
<?php
// Configuration
$max_length = 400; // Max length in characters
$min_padding = 30; // Min length in characters of the context to place around found search terms
// Load content as plain text
global $wp_query, $post;
$content = (!post_password_required($post) ? strip_tags(preg_replace(array("/\r?\n/", '@<\s*(p|br\s*/?)\s*>@'), array(' ', "\n"), apply_filters('the_content', $post->post_content))) : '');
// Search content for terms
$terms = $wp_query->query_vars['search_terms'];
if ( preg_match_all('/'.str_replace('/', '\/', join('|', $terms)).'/i', $content, $matches, PREG_OFFSET_CAPTURE) ) {
$padding = max($min_padding, $max_length / (2*count($matches[0])));
// Construct extract containing context for each term
$output = '';
$last_offset = 0;
foreach ( $matches[0] as $match ) {
list($string, $offset) = $match;
$start = $offset-$padding;
$end = $offset+strlen($string)+$padding;
// Preserve whole words
while ( $start > 1 && preg_match('/[A-Za-z0-9\'"-]/', $content{$start-1}) ) $start--;
while ( $end < strlen($content)-1 && preg_match('/[A-Za-z0-9\'"-]/', $content{$end}) ) $end++;
$start = max($start, $last_offset);
$context = substr($content, $start, $end-$start);
if ( $start > $last_offset ) $context = '...'.$context;
$output .= $context;
$last_offset = $end;
}
if ( $last_offset != strlen($content)-1 ) $output .= '...';
} else {
$output = $content;
}
if ( strlen($output) > $max_length ) {
$end = $max_length-3;
while ( $end > 1 && preg_match('/[A-Za-z0-9\'"-]/', $output{$end-1}) ) $end--;
$output = substr($output, 0, $end) . '...';
}
// Highlight matches
$context = nl2br(preg_replace('/'.str_replace('/', '\/', join('|', $terms)).'/i', '<strong>$0</strong>', $output));
?>
<p class="search_result_context">
<?php echo $context ?>
</p>
如果您想使用插件,Relevanssi允许您为返回的结果使用自定义片段,您可以为搜索词设置长度和突出显示选项。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.