在PHP和MySQL中上傳個人資料圖片：我做錯了什么？
[英]Upload a Profile Image in PHP & MySQL: What am I doing wrong?
問題描述
我來這里之前寫了三次代碼。 每次遇到相同的問題時，個人資料圖像都不會從默認占位符更改為新上傳的圖像。 這是index.php文件：
<?php
session_start();
$conn = mysqli_connect("localhost", "root", "", "imgupload");
?>
<!DOCTYPE html><html><head></head><body>
<?php
$sql_user = "SELECT * FROM user";
$result = mysqli_query($conn, $sql_user);
if (mysqli_num_rows($result) > 0) {
while ($row = mysqli_fetch_assoc($result)) {
$id = $row['id']; //gets the id of the user just selected from the database
$sql_img = "SELECT * FROM profileimg WHERE userid='$id'"; //check if we actually have a profile image uploaded from this user
$resultImg = mysqli_query($conn, $sql_img); //check what the status is of this user in the image table
while ($rowImg = mysqli_fetch_assoc($resultImg)) {
echo "<div class='user-container'>"; //check image status: uploaded or not uploaded
if ($rowImg['status'] == 0) {
echo "<img src='uploads/profile".$id.".jpg'>";
} else {
echo "<img src='uploads/profiledefault.jpg'>";
}
echo "<p>".$row['username']."</p>";
echo "</div>";
}
}
} else {
echo "There are no users yet!";
}
if (isset($_SESSION['id'])) {
if ($_SESSION['id'] == 1) {
echo "You are logged in as user #1";
}
echo "<form action='upload.php' method='POST' enctype='multipart/form-data'>
<input type='file' name='file'>
<button type='submit' name='submit'>UPLOAD</button>
</form>";
} else {
echo "You are not logged in!";
echo "<form action='signup.php' method='POST'>
<input type='text' name='first' placeholder='First name'>
<input type='text' name='last' placeholder='Last name'>
<input type='text' name='uid' placeholder='Username'>
<input type='password' name='pwd' placeholder='Password'>
<button type='submit' name='submitSignup'>Signup</button>
</form>";
}
?>
<p>Login as Admin</p><form action="login.php" method="POST"><button type="submit" name="submitLogin">Login</button></form><p>Logout</p>
<form action="logout.php" method="POST"><button type="submit" name="submitLogout">Logout</button></form></body></html>
這是upload.php文件：
<?php
session_start();
$conn = mysqli_connect("localhost", "root", "", "imgupload");
$id = $_SESSION['id'];
if (isset($_POST['submit'])) {
$file = $_FILES['file'];
$fileName = $file['name'];
$fileTmpName = $file['tmp_name'];
$fileSize = $file['size'];
$fileError = $file['error'];
$fileType = $file['type'];
$fileExt = explode('.', $fileName); //returns an array of data
$fileActualExt = strtolower(end($fileExt)); //returns the last item in the array then lowercases it
$allowed = array('jpg', 'jpeg', 'png', 'pdf');
if (in_array($fileActualExt, $allowed)) {
if ($fileError === 0) {
if ($fileSize < 1000000) {
$fileNameNew = "profile".$id.".".$fileActualExt;
$fileDestination = 'uploads/'.$fileNameNew;
move_uploaded_file($fileTmpName, $fileDestination);
$sql = "UPDATE profileimg SET status=0 WHERE userid='$id';";
$result = mysqli_query($conn, $sql);
header("Location: index.php?uploadsuccess");
} else {
echo "Your file is too big!";
}
} else {
echo "There was an error uploading your file!";
}
} else {
echo "You cannot upload files of this type!";
}
}
我懷疑signup.php文件中是否存在任何錯誤。 為什么上傳我的個人資料圖像時不會更改？
1 個解決方案
解決方案1
0 2018-05-06 12:26:44
我看不到您設置了$ _SESSION [“ id”]。 我認為$ _SESSION [“ id”]重復且
$fileNameNew = "profile".$id.".".$fileActualExt;
$ fileNameNew可以是“ profile1.jpg”，如果profile1.jpg已經存在，則無法將文件profile1.jpg添加到上傳文件夾
PHP / MYSQL我在做什么錯
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