if语句之外的回声

Question

这是我的代码

if ($follower_username == $user){

echo $followed_username.",";

};

当它运行时，它会回显echos name，name2，name3，name4

然而，当我这样做时

if ($follower_username == $user){

$names = $followed_username.",";
};

echo $name`;

它只输出name4，

是什么导致它只提取姓氏？

谢谢！

Answer 1

if ($follower_username == $user) {
  $names .= $followed_username;
}
echo $names;

Answer 2

试试这个：

//outside your loop:
$names = '';

while(){
    //...code

   if ($follower_username == $user){

   $names .= $followed_username.",";
   };

   echo $names;
}