我正在尝试创建一个系统来存储最后登录的 IP，并将其与当前 IP 进行比较，然后稍后执行一些功能，但目前，如果不转到最后一个 else 语句，我无法比较它们。这是代码。
<?php
$userToPull = $session->userinfo['username'];
$query = "SELECT * FROM users WHERE username='$userToPull'";
$result = mysql_query($query);
while($row = mysql_fetch_row($result)){
$userToShow = $row[25];
$IPtoVerify = $row[26];
}
$lastActivity = RelativeTime($userToShow);
$currIP = $_SERVER['REMOTE_ADDR'];
/*
Shows Partner Stuff
}elseif(!$session->isAdmin()){
echo "<div style='text-align:right;' id='homebox'";
echo "<b>Partner Total:</b> ".$database->getNumMembers()."<br>";
echo $database->num_active_users." partners logged in and ";
echo $database->num_active_guests." guests viewing the site.<br><br>";
echo "</div>";
*/
if(!$IPtoVerify == $currIP){
echo "<div style='text-align:right; background-color: #FAAAB3' id='homebox_partner'";
echo "<b>You are logged on from an unrecognized location.</b><br>";
echo "You will be sent a notification for security purposes.";
echo "<br>This location will automatically be remembered.";
echo "</div><br>";
}elseif($IPtoVerify == $currIP){
echo "<div style='text-align:right;' id='homebox_partner'";
echo "<b>You are logged on from a recognized location.</b><br>";
echo "Your IP is ".$_SERVER['REMOTE_ADDR'];
echo "<br>Your last login was approximately ".$lastActivity;
echo "</div><br>";
}else{
echo "<div style='text-align:right;' id='homebox_partner'";
echo "<b>An error has occurred.</b><br>";
echo "</div><br>";
}
?>
唯一不起作用的是if(!$IPtoVerify == $currIP){if 语句。
IP 以正常方式存储，echo 类似于：100.100.100.100。（正常时尚）
也许我没有正确比较它们，但它在过去对我有用。