PHP更改个人资料图片

Question

我正在用PHP，HTML和CSS创建一个社交网络项目。用户具有的功能之一是上传个人资料图片。我只是看了几个教程，我一直在关注他们，但他们很混乱，我完全迷失了。这是我最后的希望。我在我的upload.php文件中有一些代码，当我去那个页面它说File saved这意味着图像已保存，但我没有看到图像的任何地方。有人可以帮我将图像保存到我的文件夹中，当用户单击更改配置文件图片时，图片会被更改并保存吗？请帮忙 。谢谢 。

profile.php：

<form id="form2" action="upload.php" method="post" enctype="multipart/form-data"> 
<p id="p1">Change profile picture:</p> <br /> 
<input type="file" name="fileToUpload" id="fileToUpload"><br /> 
<br><input id="sub1" type="submit" value="Change profile picture" 
name="submit"><br /> 
</form> 

<!-- Trigger the Modal --> 
<img id="myImg" src="default.png" width="200" height="150"> 

<!-- The Modal --> 
<div id="myModal" class="modal"> 

<!-- The Close Button --> 
<span class="close" 
onclick="document.getElementById('myModal').style.display='none'">&times;</span> 

<!-- Modal Content (The Image) --> 
<img class="modal-content" id="img01"> 

<!-- Modal Caption (Image Text) --> 
<div id="caption"></div> 
</div> 
<script> 
// Get the modal 
var modal = document.getElementById('myModal'); 

// Get the image and insert it inside the modal - use its "alt" text as a 
caption 
var img = document.getElementById('myImg'); 
var modalImg = document.getElementById("img01"); 
var captionText = document.getElementById("caption"); 
img.onclick = function(){ 
modal.style.display = "block"; 
modalImg.src = this.src; 
captionText.innerHTML = this.alt; 
} 

// Get the <span> element that closes the modal 
var span = document.getElementsByClassName("close")[0]; 

// When the user clicks on <span> (x), close the modal 
span.onclick = function() { 
modal.style.display = "none"; 
} 
</script> 

upload.php的：

ini_set('display_errors', 1); 
ini_set('display_startup_errors', 1); 
error_reporting(E_ALL); 

include("connect.php"); 
include("auth_login.php"); 

$target_dir = "uploads/"; 
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]); 
$uploadOk = 1; 
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION); 

// Check if image file is a actual image or fake image 

if(isset($_POST["submit"])) { 
$check = getimagesize($_FILES["fileToUpload"]["tmp_name"]); 
if($check !== false) { 
    echo "File saved - " . $check["mime"] . "."; 
    $uploadOk = 1; 
} else { 
    echo "File is not an image."; 
    $uploadOk = 0; 
} 
} 

Answer 1

你的目标文件永远不会被移动到实际的目录！它停留在临时目录：

在 if

添加文件的举动：

move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file);