我正在我的网站上创建搜索栏功能,用户可以使用名称搜索用户。搜索结果可能会出现多个名称相似的用户(例如,如果我搜索“Jenna”,我的数据库可能会有多个用户名为“Jenna”,因此会显示多个结果。)我希望用户能够点击其中一个配置文件并查看特定的“Jenna”用户配置文件。有点像Twitter,在那里我可以搜索帐户并查看不同的个人资料。现在我有代码返回搜索,并使搜索结果成为可点击的链接。但是,当我尝试保存用户ID时,它只保存最新的用户ID。
home.php(用户的搜索栏为0
<form method="GET" action="search.php" id="searchform">
Search for users:
<input type="text" name="search_user" placeholder="Enter username">
<input type="submit" name="submit" value="Search">
</form>
search.php(打印出用户正在搜索的名称的用户)
session_start();
$user = '';
$password = '';
$db = 'userAccounts';
$host = 'localhost';
$port = 3306;
$link = mysqli_connect($host, $user, $password, $db);
mysqli_query($link,"GRANT ALL ON comment_schema TO 'oviya'@'localhost'");
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$search_user = $_GET['search_user'];
$sql = "SELECT * FROM users WHERE username LIKE '%$search_user%'";
$result = mysqli_query($link, $sql);
if(mysqli_num_rows($result)>0){
while ($row = mysqli_fetch_assoc($result)) {
$a = '<a';
$b = ' href="';
$c = 'user_profiles.php';
$d = '">';
$e = $row['username'];
$f = '</a';
$g = '>';
$_SESSION['user'] = $row['user_id'];
$userID = $_SESSION['user'];
echo $a.$b.$c.$d.$e.$f.$g;
header("Location: user_profiles.php");
}
}
user_profiles.php(根据用户点击特定用户ID的链接,显示特定用户的个人资料的显示位置)
session_start();
$userID=$_SESSION['user'];
$link = mysqli_connect('localhost', 'x', '', 'userAccounts');
$query="SELECT * FROM dataTable WHERE user_id='$userID'";
$results = mysqli_query($link,$query);
while ($row = mysqli_fetch_assoc($results)) {
echo '<div class="output" >';
$entry_id = $row["entry_id"];
$output= $row["activity"];
echo "Activity: ";
echo htmlspecialchars($output ,ENT_QUOTES,'UTF-8')."<br>"."<br>";
$output= $row["duration"];
echo "Duration: ";
echo htmlspecialchars($output ,ENT_QUOTES,'UTF-8')." hrs"."<br>"."<br>";
$output= $row["date_"];
echo "Date: ";
echo htmlspecialchars($output ,ENT_QUOTES,'UTF-8')."<br>"."<br>";
echo '</div>';
}
我得到了我的错误,search.php中的while循环将只保存最新的userID,因此该链接将始终将我带到具有该useriD的用户配置文件。我只是不确定如何实现它,以便当用户查看配置文件列表时,他们单击的链接将根据用户ID将它们带到特定的配置文件。
答案 0 :(得分:1)
您需要对search和user.php文件进行更改:
Search.php:
<?php
session_start();
$user = '';
$password = '';
$db = 'userAccounts';
$host = 'localhost';
$port = 3306;
$link = mysqli_connect($host, $user, $password, $db);
mysqli_query($link, "GRANT ALL ON comment_schema TO 'oviya'@'localhost'");
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$search_user = $_GET['search_user'];
$sql = "SELECT * FROM users WHERE username LIKE '%$search_user%'";
$result = mysqli_query($link, $sql);
if (mysqli_num_rows($result) > 0) {
while ($row = mysqli_fetch_assoc($result)) {
$id = $row['user_id'];
?>
<a href="user_profiles.php?id=<?php echo $id; ?>" >
<?php echo $row['username']; ?>
</a>
<?php
$_SESSION['user'] = $row['user_id'];
$userID = $_SESSION['user'];
header("Location: user_profiles.php");
}
}
<强> User_profile.php:强>
$userid = $_GET['id'];
$link = mysqli_connect('localhost', 'x', '', 'userAccounts');
$query = "SELECT * FROM dataTable WHERE user_id='$userid'";
$results = mysqli_query($link, $query);
while ($row = mysqli_fetch_assoc($results)) {
echo '<div class="output" >';
$entry_id = $row["entry_id"];
$output = $row["activity"];
echo "Activity: ";
echo htmlspecialchars($output, ENT_QUOTES, 'UTF-8') . "<br>" . "<br>";
$output = $row["duration"];
echo "Duration: ";
echo htmlspecialchars($output, ENT_QUOTES, 'UTF-8') . " hrs" . "<br>" . "<br>";
$output = $row["date_"];
echo "Date: ";
echo htmlspecialchars($output, ENT_QUOTES, 'UTF-8') . "<br>" . "<br>";
echo '</div>';
}
答案 1 :(得分:0)
首先,您要将多个用户ID保存到字符串中。
另一件事,你是在循环中保存它。
因此,最新值会更新旧值。
在您的情况下,它将始终保存最后一个值。这是首要问题。
您可以使用一组用户ID并将其保存在其中。
$userIds = array();
while ($row = mysqli_fetch_assoc($result)) {
$a = '<a';
$b = ' href="';
$c = 'user_profiles.php';
$d = '">';
$e = $row['username'];
$f = '</a';
$g = '>';
$userIds[] = $row['user_id'];
$userID = $_SESSION['user'];
echo $a.$b.$c.$d.$e.$f.$g;
header("Location: user_profiles.php");
}
$_SESSION['user'] = $userIds;
在user_profiles.php
中,循环遍历数组或使用MySQL IN()
条件获取所有用户个人资料。
另外,为什么你为html链接带来了太多的变量。您可以使用如下所示的连接在单个变量中执行此操作:
$userIds = array();
while ($row = mysqli_fetch_assoc($result)) {
$a = '<a'
. ' href="';
. 'user_profiles.php';
. '">';
. $row['username'];
. '</a';
. '>';
$userIds[] = $row['user_id'];
$userID = $_SESSION['user'];
echo $a;
header("Location: user_profiles.php");
}
$_SESSION['user'] = $userIds;
另一个错误是您echo
HTML链接并进行重定向。
这会导致headers already sent...
错误。
答案 2 :(得分:0)
这将显示具有搜索字符串的用户列表
if(mysqli_num_rows($result)>0){
while ($row = mysqli_fetch_assoc($result)) {
$link="<a href='user_profiles.php?user_id=".$row['user_id']."'>".$row['username']."</a>";
}
}
点击链接后,它将重定向到user_profiles.php(不需要标题。标题用于自动重定向) 在user_profiles.php中
session_start();
$userID=$_GET['user_id'];
$link = mysqli_connect('localhost', 'x', '', 'userAccounts');
$query="SELECT * FROM dataTable WHERE user_id='$userID'";
$results = mysqli_query($link,$query);
while ($row = mysqli_fetch_assoc($results)) {
echo '<div class="output" >';
$entry_id = $row["entry_id"];
$output= $row["activity"];
echo "Activity: ";
echo htmlspecialchars($output ,ENT_QUOTES,'UTF-8')."<br>"."<br>";
$output= $row["duration"];
echo "Duration: ";
echo htmlspecialchars($output ,ENT_QUOTES,'UTF-8')." hrs"."<br>"."<br>";
$output= $row["date_"];
echo "Date: ";
echo htmlspecialchars($output ,ENT_QUOTES,'UTF-8')."<br>"."<br>";
echo '</div>';
}