使用WHERE子句在一个SQL查询中检查数组中的值

我有一个sql表:posts( id int(11) primary key, posts varchar(140), user_id int(11) foreign key);我现在编写一个查询来检索帖子":$query="SELECT * FROM posts WHERE user_id=(**Array of select user_id's**)";是否有任何sql内置函数来检查数组中的值?还是应该为此使用PHP?我实际上是在尝试实现Twitter模式，以显示我们关注的人的帖子.解决方案 SQL无法解析PHP数组.试试这个:$query="SELECT * FROM posts WHERE user_id IN ({implode(',', $userIDarray)})";I want to know is this practically possible in sql(using php as server-side), where in you have an array of values(numbers), and you try to retrieve data based on values inside that array..I have a sql table:posts( id int(11) primary key, posts varchar(140), user_id int(11) foreign key);I write a query now to retrieve 'posts':$query="SELECT * FROM posts WHERE user_id=(**Array of select user_id's**)";Is there any sql in-built function to check values inside an array? or should I be using PHP for this?I am actually trying to implement the twitter model of showing posts of people whom we follow. 解决方案 SQL can't parse PHP arrays. Try this:$query="SELECT * FROM posts WHERE user_id IN ({implode(',', $userIDarray)})"; 这篇关于使用WHERE子句在一个SQL查询中检查数组中的值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！