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我試圖做一個按鈕，刪除上傳到我的服務器上的圖像。然而，當我上傳了一個圖像，然後點擊刪除沒有任何作品，它會從頁面中刪除圖像，但當我檢查網站目錄時，它仍然存在。此外，DELETION COMPLETE或DELETION FAILED都不會顯示回顯消息，因此它讓我想知道它是否可以工作，只是刷新頁面。不知道爲什麼這是，還有一種方法，使圖像呈現時只顯示加載圖像gif？這裏是我得到的：圖像刪除按鈕無法正常工作？
<?php
ob_clean();session_start();
if (isset($_GET['logout'])){
session_destroy();
}
if (!isset($_SESSION['loggedin']) || $_SESSION['loggedin'] == false) {
header("Location: index.php");
}
$loadingimage = false;
if(isset($_FILES['UploadFileField'])){
$allowed = array('jpg','png','jpeg');
$name = $_FILES["UploadFileField"]["name"];
$tmp = $_FILES['UploadFileField']['tmp_name'];
$type = $_FILES['UploadFileField']['type'];
$newName = "Image Attachment.jpg";
$types = array('jpg','png','jpeg');
$ext = pathinfo($name, PATHINFO_EXTENSION);
if(in_array($ext,$types)){
move_uploaded_file($tmp, "UPLOADS/$newName");
echo '<font size="3"><p align="center"><b>UPLOAD SUCCESSFUL: </font><font color="#000000" size="3">Your document has now been uploaded and is ready to send.</b></p></font>';
$loadingimage = true;
}
else {
if(!$tmp){
echo '<font size="3"><p align="center"><b>UPLOAD FAILED: </font><font color="#000000" size="3">No document has been selected.</b></p></font>';
}
else {
echo '<font size="3"><p align="center"><b>UPLOAD FAILED: </font><font color="#000000" size="3">Uploaded document was an incorrect extension type, please use ".jpg", ".jpeg", or "png" only.</b></p></font>';
}
}
}
if (isset($_POST['submit'])){
header('Location: Review.php');
}
if (isset($_POST['delete'])){
if ($loadingimage == true){
echo '<font size="3"><p align="center"><b>DETLEION COMPLETE: </font><font color="#000000" size="3">Image no longer available</b></p></font>';
unlink('UPLOADS/Image Attachment.jpg');
$loadingimage = false;
}
else{
echo '<font size="3"><p align="center"><b>DETLEION FAILED: </font><font color="#000000" size="3">No image available for deletion</b></p></font>';
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Attach Image</title>
<link href="CSS/boilerplate.css" rel="stylesheet" type="text/css">
<link href="CSS/master.css" rel="stylesheet" type="text/css">
<script src="JAVASCRIPT/respond.min.js"></script>
</head>
<body link="black">
<div class="gridContainer clearfix">
<div id="borderDiv">
<div id="navDiv">
<div id="backNavDiv">
<a href="CompletedBy.php"><font color="white"><p align="left"><b> < Completed By</b></p></font></a>
</div>
<div id="logoutDiv">
<a href="index.php?logout"><font color="white"><p align="right"><b>Log Out > </b></p></font></a>
</div>
</div>
<div id="headerDiv">
<p>Attach Image</p>
</div>
<?php
if($loadingimage == false){
echo '<div id="imageDiv"><img src="IMAGES/loading.gif"></div>';
}
else{
echo '<div id="imageDiv"><img src="UPLOADS/Image Attachment.jpg"></div>';
}
?>
<div id="loginBtnDiv">
<div id="uploadAreaDiv">
<form action="AttachImage.php" method="post" enctype="multipart/form-data" name="FileUploadForm" id="FileUploadForm">
<label for="UploadFileField"></label>
<input type="file" name="UploadFileField" id="UploadFileField"/>
<input type="submit" name="UploadButton" id="UploadButton" value="Upload"/>
</form>
</div>
<form action="AttachImage.php" method="post" enctype="multipart/form-data" name="delete" id="delete">
<input id="delete" name="delete" type="submit" value="Delete">
</form>
<form action="AttachImage.php" method="post" enctype="multipart/form-data" name="FileForm" id="FileForm">
<input id="submit" name="submit" type="submit" value="Next">
</form>
</div>
</div>
</div>
<div id="logoDiv">
<img src="IMAGES/Logo.png">
</div>
</body>
</html>
您定義'$ loadingimage = false;'，然後檢查它是真是假。它會因爲它而永遠是虛假的。 – Qirel
您沒有設置邏輯來告訴腳本文件所在的位置，因此無法刪除。您也只能在上傳同時發生的情況下才能到達刪除部分。 – Rasclatt