我在上传文件时遇到问题，文件运行不正常 这是我的php文件，有没有写错误或什么？
警告：取消关联（dist / img /）：在 C：\ xampp \ htdocs \ project_admin \ edit_user.php 上的权限被拒绝 45
第45行：
unlink($upload_dir.$avatar);
php代码：
if (isset($_POST['update'])) {
$id = $_GET['id'];
$email = isset($_POST['_em']) ? $_POST['_em'] : null;
$fname = isset($_POST['_fn']) ? $_POST['_fn'] : null;
$lname = isset($_POST['_ln']) ? $_POST['_ln'] : null;
$web_usr = isset($_POST['_web']) ? $_POST['_web'] : null;
$usr_note = isset($_POST['_note']) ? $_POST['_note'] : null;
$usr_edu = isset($_POST['_edu']) ? $_POST['_edu'] : null;
$usr_skill = isset($_POST['_skill']) ? $_POST['_skill'] : null;
$imgFile = isset($_FILES['user_image']['name']);
$tmp_dir = isset($_FILES['user_image']['tmp_name']);
$imgSize = isset($_FILES['user_image']['size']);
if ($imgFile) {
$upload_dir = 'dist/img/';
$imgExt = strtolower(pathinfo($imgFile,PATHINFO_EXTENSION));
$valid_extensions = array('jpeg', 'jpg', 'png', 'gif');
$avatar = rand(1000, 1000000).".".$imgExt;
if(in_array($imgExt, $valid_extensions)) {
if ($imgSize < 1000000) {
unlink($upload_dir.$avatar);
move_uploaded_file($tmp_dir, $upload_dir.$avatar);
} else {
$errMSG = "Sorry, your file is too large it should be less then 1MB";
}
} else {
$errMSG = "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
}
}
//Retrieve the user account information by id.
if(!isset($errMSG)) {
$object->Update($id, $email, $fname, $lname, $web_usr, $usr_note, $avatar, $usr_edu, $usr_skill, $avatar);
$sucMSG = "<strong>WOW!</strong> Record was updated successfully";
} else {
$errMSG = "Sorry Data Could Not Updated !";
}
}
HTML代码
<form class="form-horizontal" method="POST" >
<div class="box-body">
<div class="form-group">
<input type="hidden" name="id" value="<?php echo $id; ?>">
<label for="inputUserName" class="col-sm-2 control-label">Username</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="inputUserName" value="<?php echo $username; ?>" disabled>
<p class="help-block"><em>You require permission from Administrators to change it.</em></p>
</div>
</div>
<div class="form-group">
<label for="inputFirstName" class="col-sm-2 control-label">First Name</label>
<div class="col-sm-10">
<input type="text" name="_fn" class="form-control" id="inputFirstName" value="<?php echo $fname; ?>">
</div>
</div>
<div class="form-group">
<label for="inputLastName" class="col-sm-2 control-label">Last Name</label>
<div class="col-sm-10">
<input type="text" name="_ln" class="form-control" id="inputLastName" value="<?php echo $lname; ?>">
</div>
</div>
<div class="form-group">
<label for="inputEmail" class="col-sm-2 control-label">Email</label>
<div class="col-sm-10">
<input type="email" name="_em" class="form-control" id="inputEmail" value="<?php echo $email; ?>">
</div>
</div>
<div class="form-group">
<label for="inputEmail" class="col-sm-2 control-label">Website</label>
<div class="col-sm-10">
<input type="text" name="_web" class="form-control" id="inputEmail" value="<?php echo $web_usr; ?>">
</div>
</div>
<div class="form-group">
<label for="inputEducation" class="col-sm-2 control-label">Education</label>
<div class="col-sm-10">
<input type="text" name="_edu" class="form-control" id="inputEducation" placeholder="Education" value="<?php echo $usr_edu; ?>">
</div>
</div>
<div class="form-group">
<label for="inputNote" class="col-sm-2 control-label">Notes</label>
<div class="col-sm-10">
<textarea class="form-control" id="inputNote" placeholder="Note" name="_note"><?php echo $usr_note; ?></textarea>
</div>
</div>
<div class="form-group">
<label for="inputSkill" class="col-sm-2 control-label">Skill</label>
<div class="col-sm-10">
<select class="form-control select2" name="_skill" value="<?php echo $usr_skill; ?>" multiple="multiple" data-placeholder="Skill" >
</select>
</div>
</div>
<div class="form-group">
<label for="inputRole" class="col-sm-2 control-label">Role</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="inputRole" value="<?php echo $id_admrole; ?>" disabled>
<p class="help-block"><em>You require permission from Administrators to change it.</em></p>
</div>
</div>
<div class="form-group">
<label for="inputFile3" class="col-sm-2 control-label">Foto Profil</label>
<div class="col-sm-10">
<div class="input-group">
<label class="input-group-btn">
<span class="btn btn-primary">
Browse <input type="file" style="display: none;" accept="image/*" id="file" name="user_image">
</span>
</label>
<input type="text" class="form-control" value="<?php echo $avatar; ?>" readonly>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" name="update" class="btn btn-danger" value="update">UPDATE</button>
</div>
</div>
</div>
<!-- /.box-body -->
</form>
有没有人可以帮助我？
答案 0 :(得分：0)
您似乎正在尝试删除目录，但我很确定您打算从该目录中删除图像文件。
问题出在这里，请参阅代码中的注释
if ($imgFile) {
$upload_dir = 'dist/img/';
$imgExt = strtolower(pathinfo($imgFile,PATHINFO_EXTENSION));
$valid_extensions = array('jpeg', 'jpg', 'png', 'gif');
$avatar = rand(1000, 1000000).".".$imgExt;
if(in_array($imgExt, $valid_extensions)) {
if ($imgSize < 1000000) {
// ERROR here
//unlink($upload_dir);
// add the filename to the directory name
unlink($upload_dir.$imgFile);
// Or maybe it should be
unlink($upload_dir.$avatar);
move_uploaded_file($tmp_dir, $upload_dir.$avatar);
} else {
$errMSG = "Sorry, your file is too large it should be less then 1MB";
}
} else {
$errMSG = "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
}