WordPress文章关键字替换

function replace_text_wps($text) {
    $replace = array(
            //开始添加关键词
    '在这里输入关键词' => '<a href="https://gitcafe.net/" rel="bookmark" title="乐趣公园">在这里输入关键词</a>',
            '关键词' => '<a href="https://gitcafe.net/" rel="bookmark" title="说明">关键词</a>'
            //添加关键词结束
    );
    $text = str_replace(array_keys($replace), $replace, $text);
    return $text;
}
add_filter('the_content', 'replace_text_wps');