[英]Inner Join
$query4 = mysql_query("SELECT * FROM comments WHERE content_id = '$id' AND content = 'thread'
INNER JOIN users ON comments.poster = users.id
ORDER BY comments.date ASC");
while ($comment = mysql_fetch_array($query4)) {
}
所有的表和列都存在,我連接到數據庫,但它仍然給我:
Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in thread.php on line 63
我在這里做錯了什么?
提前致謝。
您的連接語法錯誤。 嘗試:
SELECT *
FROM comments
INNER JOIN users ON comments.pooster = users.id
WHERE comments.content_id = '$id'
ORDER BY comments.date ASC
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