给wordpress的搜索添加高亮关键词显示功能，实现方法如下：
最近对wordpress的一些小改进很感兴趣，可以让你的博客更加个性，也更有趣味性，下面的代码可以在结果中高亮你所搜索的关键词。首先把第一段代码放在functions.PHP中
function hls_set_query() {
$query = attribute_escape(get_search_query());
if(strlen($query) > 0){
echo '
<script type="text/javascript">
var hls_query = "'.$query.'";
</script>
';
}
}
function hls_init_jquery() {
wp_enqueue_script('jquery');
}
add_action('init','hls_init_jquery');
add_action('wp_print_scripts','hls_set_query');
$query = attribute_escape(get_search_query());
if(strlen($query) > 0){
echo '
<script type="text/javascript">
var hls_query = "'.$query.'";
</script>
';
}
}
function hls_init_jquery() {
wp_enqueue_script('jquery');
}
add_action('init','hls_init_jquery');
add_action('wp_print_scripts','hls_set_query');
<style type="text/css" media="screen">
.hls { background: #D3E18A; }
</style>
<script type="text/javascript">
jQuery.fn.extend({
highlight: function(search,insensitive,hls_class){
var regex = new RegExp("(<[^>]*>)|("+ search.replace(/([-.*+?^${}()|[]/])/g,"$1") +")",insensitive ? "ig" : "g");
return this.html(this.html().replace(regex,function(a,b,c){
return (a.charAt(0) == "<") ? a : "<strong class=""+ hls_class +"">" + c + "</strong>";
}));
}
});
jQuery(document).ready(function($){
if(typeof(hls_query) != 'undefined'){
$("#post-area").highlight(hls_query,1,"hls");
}
});
</script>
.hls { background: #D3E18A; }
</style>
<script type="text/javascript">
jQuery.fn.extend({
highlight: function(search,insensitive,hls_class){
var regex = new RegExp("(<[^>]*>)|("+ search.replace(/([-.*+?^${}()|[]/])/g,"$1") +")",insensitive ? "ig" : "g");
return this.html(this.html().replace(regex,function(a,b,c){
return (a.charAt(0) == "<") ? a : "<strong class=""+ hls_class +"">" + c + "</strong>";
}));
}
});
jQuery(document).ready(function($){
if(typeof(hls_query) != 'undefined'){
$("#post-area").highlight(hls_query,1,"hls");
}
});
</script>