试试这个
你必须从更改至enctype="multipart/form-data"
。
我将type="submit"
添加到按钮。我知道这是在默认情况下submit
HTML代码
<form action="process.php" method="post" enctype="multipart/form-data">
<input type="file" name="profile_image" required="">
<button type="submit" name="upload_image" class="btn btn-danger">Go</button>
</form>
Process.php
添加您的数据库文件在这里
if (isset($_POST["upload_image"])) {
if ($_FILES["profile_image"]["error"] > 0) {
$error = $_FILES["file"]["error"];
}
else if (($_FILES["profile_image"]["type"] == "image/gif") ||
($_FILES["profile_image"]["type"] == "image/jpeg") ||
($_FILES["profile_image"]["type"] == "image/png") ||
($_FILES["profile_image"]["type"] == "image/pjpeg")) {
$temp = explode(".", $_FILES["profile_image"]["name"]);
$newfilename = round(microtime(true)) . '.' . end($temp);
//echo $newfilename;
$url = 'upload/'.$newfilename;// it will store the image in the upload folder
$filename = compress_image($_FILES["profile_image"]["tmp_name"], $url, 80);//this will call the compress_image fruntion for optimize the image
}else {
$error = "Uploaded image should be jpg or gif or png";
}
$new_image_name=$newfilename;//here is the new random file name
$sql = "update users set image='".$new_image_name."' where username='$username'";
$result = mysqli_query($conn, $sql);
if($result){
echo "<script>window.open('profile.php','_SELF')</script>";
}
else{
echo "<script>alert('Error!')</script>";
echo "<script>window.open('profile.php','_SELF')</script>";
}
}
以下功能将优化图像。
$name = ''; $type = ''; $size = ''; $error = '';
function compress_image($source_url, $destination_url, $quality) {
$info = getimagesize($source_url);
if ($info['mime'] == 'image/jpeg')
$image = imagecreatefromjpeg($source_url);
elseif ($info['mime'] == 'image/gif')
$image = imagecreatefromgif($source_url);
elseif ($info['mime'] == 'image/png')
$image = imagecreatefrompng($source_url);
imagejpeg($image, $destination_url, $quality);
return $destination_url;
}
表单的''enctype''应该是''multipart/form-data'',而不是''multipart/formdata''。可能重复的https://stackoverflow.com/questions/35417567/uploading-an-image-to-a-mysql-database-using-a-blob – kmoser
@Subham,你声明的$用户名?还有一件事你必须在按钮中使用type =“submit” –
@NarendraVerma $ username是我的会话用户名,我忘了编辑这个问题。如果我使用而不是