Wordpress-分类导航的最后一节课

Posted 2021-02-26

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Functions.php
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function add_last_class($input) {
	if( !empty($input) ) {
 
		$pattern = '/<li class="(?!.*<li class=")/is';
		$replacement = '<li class="last ';
 
		$input = preg_replace($pattern, $replacement, $input);
 
		echo $input;
	}
}
 
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Header.php
 
Need to put echo=0 for it to work when calling 
this function
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<?php add_last_class(wp_list_categories('title_li=&echo=0'));?>