mysql_insert_id doesn't ever seem to work

Question

I have the following code:

$sql = "INSERT INTO table VALUES ('', ...)";
$result = mysql_query($sql, $link) or die(mysql_error());
$id = mysql_insert_id($result) or die('oops'); //mysql_error() instead of oops produces the same result
echo $id . "\nDone";

The table that this insert occurs on has an auto-incroment field however all that this outputs is:

Done

Am I doing something wrong?

Answer 1

您不需要将$ result传递给mysql_insert_id，您应该传递$ link变量。

Answer 2

mysql_insert_id()函数期望第一个参数是连接资源。

Answer 3

执行mysql_insert_id（$ link）或mysql_insert_id（）而不是mysql_insert_id（$ result），因为mysql_insert_id参数为[resource $ link_identifier]

Answer 4

您不需要传递任何内容，如果这样做，则应该传递连接变量