我正在用PHP创建一个类似的系统。我的代码如下所示。

<?php 
class Like_System {
    private $userid;
    private $postid;
    private $user_ko_like_count;
    private $post_ko_like_count;
    private $user_ko_dislike_count;
    private $post_ko_dislike_count;
    private $user_ip;

    public function __construct(){
    }
    public function our_ajax_script(){
        wp_enqueue_script( \'sb_like_post\', get_template_directory_uri().\'/data/js/post-like.min.js\', false, \'1.0\', 1 );
        wp_localize_script( \'sb_like_post\', \'ajax_var\', array(
            \'url\' => admin_url( \'admin-ajax.php\' ),
            \'nonce\' => wp_create_nonce( \'like_system\' )
            )
        );
    }
    public function load_our_ajax_script(){
        add_action( \'init\', array($this,"our_ajax_script") );
        add_action( \'wp_ajax_nopriv_like_system\',array($this,"like_dislike_kernal"));
        add_action( \'wp_ajax_like_system\',array($this,"like_dislike_kernal"));
    }
    public function verify_nonce($nonce){
        if ( ! wp_verify_nonce( $nonce, \'like_system\' ) )
        die ();
    }
    public function like_dislike_kernal(){
        extract($_POST);
        $this->verify_nonce($nonce);

        $this->postid=$postid;
        $this->userid=get_current_user_id();
        $this->post_ko_like_count = get_post_meta( $postid, "_post_ko_like_count", true );

        if($system=="like"){
            if(is_user_logged_in()){
                $this->logged_in_user_like_kernal();
            }else{
                $this->anonymous_user_like_kernal();
            }
        }
        die();
    }
    private function make_array_if_not_exist($var){
        if(!is_array($var)){
            $var=[];
            return $var;
        }
        return $var;
    }
    private function already_liked_or_disliked($whattocheck="liked"){
        if(is_user_logged_in()){
            $post_ma_like_garney_user=$this->make_array_if_not_exist(get_post_meta( $this->postid, "_post_ma_like_garney_user", true ));
            if(in_array($this->userid,$post_ma_like_garney_user)) return true;
        }
        return false;
    }
    private function logged_in_user_like_kernal(){  
        $user_lay_like_gareko_posts=$this->make_array_if_not_exist(get_user_option( "_user_lay_like_gareko_posts", $this->userid  ));
        $post_ma_like_garney_user=$this->make_array_if_not_exist(get_post_meta( $this->postid, "_post_ma_like_garney_user", true ));

        $user_lay_like_gareko_posts["Post_ID_".$this->postid]=$this->postid;
        $post_ma_like_garney_user["User_ID_".$this->userid]=$this->userid;

        if($this->already_liked_or_disliked()==false){
            update_post_meta( $this->postid, "_post_ko_like_count", $this->post_ko_like_count + 1 ); 
            echo $this->post_ko_like_count + 1; // update count on front end
        }else{
            $ukey= array_search( $this->userid,  $post_ma_like_garney_user);
            $pkey= array_search( $this->postid, $user_lay_like_gareko_posts );

            unset( $user_lay_like_gareko_posts[$pkey] ); // remove from array
            unset( $post_ma_like_garney_user[$ukey] ); // remove from array
            update_post_meta( $this->postid, "_post_ko_like_count", --$this->post_ko_like_count );
            echo $this->post_ko_like_count; 
        }

    }

}
$like_system=new Like_System();
$like_system->load_our_ajax_script();
?>

基本上，当用户单击like按钮时，ajax工作，而这个like\\u系统类工作将在数据库上添加like count+1

Problem如果用户缓慢地单击like按钮，一切都会正常工作。例如，如果我单击like按钮，它显示like count 5。当我在5秒后单击like（假设）时，它将不象并显示like计数4，正如我们所期望的那样，如果我单击like计数，它将显示5。这是一个测试，我在其中记录了一个类似的计数器，当我在一段时间后单击按钮时，它会正确地运行。

但假设我很快点击了按钮，比如说一秒钟内点击了5次。我们可能希望like count应该在4和5之间切换，但有时它不会显示-1或-3，有时甚至会显示8。为什么会这样？

这是当我快速点击like按钮时的测试。在代码中挖掘了数小时，但仍然找不到任何问题：（

我甚至不知道ajax是个问题还是php问题：（谢谢。