mysql 輸出到 php array 然後印出?

Question

我想印出的內容是

$SQL = mysql_query("SELECT `fid` FROM `users_friend`
WHERE `id` = '".$_SESSION['id']."' AND `request` = '1'
"); 

想要印出有符合的fid 我的fid都是數字

$demo = array();
$k=0;
while ($row = mysql_fetch_array($SQL))
{
 $demo[$k] = $row;
 $k++;
 
}

print_r($demo);

但是他印出結果會是這樣

Array ( [0] => Array ( [0] => 2 [fid] => 2 ) [1] => Array ( [0] => 5 [fid] => 5 ) [2] => Array ( [0] => 3 [fid] => 3 ) )

但是我只要印出 253 就好了 請問該怎麼解?

Answer 1

不知道你是不是要这个

$demo = array();
$k=0;
while ($row = mysql_fetch_array($SQL))
{
 $demo[$k] = $row['fid'];
 $k++;
 
}