[英]Trying to get the results from first query to search a second query
我一直在社交网络上工作,我有一个粉丝页面,用户可以为自己喜欢的乐队或名人创建个人资料,还有另一个表,称为“朋友”,可以在其中订阅粉丝页面。 然后,我希望请求显示在通知中,以使Fanpage管理员可以除外。 在第一个sql查询后,它返回具有多个值的页面,但是如果我回显下一个$ sql查询,则表明它仅选择一个要查询的结果而不是所有结果。
所以基本上,我需要查询用户登录页面($ log_username)创建的所有粉丝页面的粉丝页面,然后我需要获取那些粉丝页面并查询好友表,以查明是否有人请求订阅用户粉丝页面?
这行代码$ fanpage_requests =“ $ fansubSql”; 输出SELECT * FROM friends WHERE user2 ='fan4'AND accepted ='0'ORDER BY日期为ASC的唯一结果,但应该有2个结果,因为fan3和fan4都有请求。
谢谢你的帮助Michael
$fanpage_requests = '';
$fansql = "SELECT created_by, fanpage_name FROM `fanpages` WHERE created_by = '$log_username' ";
$fanquery = mysqli_query($db_conx, $fansql);
$fannumrows = mysqli_num_rows($fanquery);
if($fannumrows < 1){
$fanpage_requests = 'No friend requests';
} else {
while($row = mysqli_fetch_array($fanquery, MYSQLI_ASSOC)) {
$fanpage_name = $row["fanpage_name"];
$created_by = $row["created_by"];
$fansubSql = "SELECT * FROM friends WHERE user2='$fanpage_name' AND accepted='0' ORDER BY datemade ASC";
$fansubQuery = mysqli_query($db_conx, $fansubSql);
$fansubNumrows = mysqli_fetch_row($fansubQuery);
$fanpage_requests = "$fansubSql";
if($fansubNumrows < 1){
$fanpage_requests = "blah blah";
}
while ($fansubRow = mysqli_fetch_array($fansubQuery, MYSQLI_ASSOC)) {
$fansubreqID = $fansubRow["id"];
$fansubuser1 = $fansubRow["user1"];
$fansubdatemade = $fansubRow["datemade"];
$fansubdatemade = strftime("%B %d", strtotime($datemade));
$fansubthumbquery = mysqli_query($db_conx, "SELECT avatar FROM users WHERE username='$user1' LIMIT 1");
$fansubthumbrow = mysqli_fetch_row($thumbquery);
$fansubuser1avatar = $thumbrow[0];
$fansubuser1pic = '<img src="user/'.$user1.'/'.$user1avatar.'" alt="'.$user1.'" class="user_pic">';
if($fansubuser1avatar == NULL){
$fansubuser1pic = '<img src="images/avatardefault.jpg" alt="'.$user1.'" class="user_pic">';
}
$fanpage_requests .= '<div id="friendreq_'.$fansubreqID.'" class="friendrequests">';
$fanpage_requests .= '<a href="user.php?u='.$fansubuser1.'">'.$fansubuser1pic.'</a>';
$fanpage_requests .= '<div class="user_info" id="user_info_'.$fansubreqID.'">'.$fansubdatemade.' <a href="user.php?u='.$fansubuser1.'">'.$fansubuser1.'</a> requests friendship<br /><br />';
$fanpage_requests .= '<button onclick="fanReqHandler(\'accept\',\''.$fansubreqID.'\',\''.$fansubuser1.'\',\'user_info_'.$fansubreqID.'\')">accept</button> or ';
$fanpage_requests .= '<button onclick="fanReqHandler(\'reject\',\''.$fansubreqID.'\',\''.$fansubuser1.'\',\'user_info_'.$fansubreqID.'\')">reject</button>';
$fanpage_requests .= '</div>';
$fanpage_requests .= '</div>';
}
}
}
?>
阅读文档。 mysqli_fetch_row不返回数字。 它从查询返回一个记录。 查看文档中的示例:您需要在循环内使用mysqli_fetch_row
来检索所有记录。
要知道查询返回的行数,请使用mysqli_num_rows 。
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