我之前問過這個問題并得到了答案，但我想做一些不同的事情。我正在創(chuàng)建一個社交網(wǎng)站，讓人們可以互相發(fā)送消息。opened如果列是，我想用藍色背景顯示 div == 0。但我現(xiàn)在只顯示 else 列中的 div，該列是空白的。因此，即使條件成立并且背景顏色應(yīng)該顯示藍色，背景顏色也會立即直接變?yōu)槠渌伾Ｓ惺裁磶椭鷨?？public function getConvos () { $userLoggedIn = $this->user_obj->getUsername(); $return_string = ""; $convos = array(); $query = $this->con->prepare('SELECT user_to, user_from, opened FROM messages WHERE user_to = ? OR user_from = ? ORDER BY id DESC'); $query->bind_param("ss", $userLoggedIn, $userLoggedIn); $query->execute(); $query_result = $query->get_result(); while ($row = $query_result->fetch_assoc()) { $user_to_push = ($row['user_to'] != $userLoggedIn) ? $row['user_to'] : $row['user_from']; if(!in_array($user_to_push, $convos)) { array_push($convos, $user_to_push); } $color = ($row['opened'] == '0') ? "#DDEDFF" : ""; } foreach ($convos as $username) { $user_found_obj = new User($this->con, $username); $latest_message_details = $this->getLatestMessage($userLoggedIn, $username); $return_string .= "<a href='messages.php?u=$username'><div class='user_found_messages' style='background-color: $color;' > <img src='" . $user_found_obj->getProfilePic() . "' style='border-radius: 5px; margin-right: 5px;'> ". $username ."<br/>". $latest_message_details . "</div></a>"; } return $return_string;}.user_found_messages {padding-left: 10px;padding-top: 20px;padding-bottom: 10px;height: auto;border-bottom: 1px solid #d9d9d9;}.user_found_messages:hover {background-color: #e6ffff;color: #669999;}.user_found_messages img {height: 105px;float: left;margin-top: 1px; margin-right: 5px;}
1 回答
慕尼黑的夜晚無繁華
TA貢獻1864條經(jīng)驗 獲得超6個贊
這個問題是由于每次迭代中的 $color 覆蓋而發(fā)生的。
嘗試這個：
$i = 0;
while ($row = $query_result->fetch_assoc()) {
$user_to_push = ($row['user_to'] != $userLoggedIn) ? $row['user_to'] : $row['user_from'];
if(!in_array($user_to_push, $convos)) {
array_push($convos, $user_to_push);
}
$color[$i] = ($row['opened'] == '0') ? "#DDEDFF" : "";
$i++;
}
foreach ($convos as $key => $username) {
$user_found_obj = new User($this->con, $username);
$latest_message_details = $this->getLatestMessage($userLoggedIn, $username);
$return_string .= "<a href='messages.php?u=$username'><div class='user_found_messages'
style='background-color: ". $color[$key]; ."' >
<img src='" . $user_found_obj->getProfilePic() .
"' style='border-radius: 5px; margin-right: 5px;'>
". $username ."<br/>".
$latest_message_details . "</div></a>";
}
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