PHP爆阵帮助

Question

我想的内爆的用户ID的$ users_in_range阵列问题是iploding英里，而不是用户ID在

<?PHP
$users_in_range = users_in_range($lat, $long, 500, true); 

// implode users into mysql friendly list
$comma_separated = implode(",", $users_in_range);
echo $comma_separated;

// this is just for output while debugging
foreach ($users_in_range as $userid => $miles_away) {
    echo "UserID=<b>$userid</b> is <b>$miles_away</b> miles away from me.<br />";
}
?>

Answer 1

的用户标识是该阵列的关键，因此需要做的：

$comma_separated = implode(",", array_keys($users_in_range));

Answer 2

尝试：

$comma_separated = implode(',', array_keys($users_in_range));