[英]Trying to change the name when uploading an image file using php
我正在尝试更改使用PHP上传的文件的名称,我知道此问题已得到解答,但我无法使用其他人的示例找到解决方案,请耐心等待。
在下面的代码中,我将var userid设置为登录的用户。我希望上载的图像接收该用户的名称。
<?php
session_start();
//database connectie
include_once('db/conn.php');
if(isset($_SESSION['user'])){
$userid = $_SESSION['user'];
$ran = $userid;
$target = "uploads/";
$target_file = $target . basename($_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 is an image - " . $check["mime"] . ".";
$uploadOk = 1;
} else {
echo "File is not an image.";
$uploadOk = 0;
}
}
// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 5000000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"],$target_file)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
}else{
echo "plz login before uploading an image";
}
?>
调用move_uploaded_file
,可以声明映像的位置并更改映像的名称。
//Moves image to 'uploads' and saves image as '$userid.$imageFileType (e.g '31029.png')
move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target . $userid . $imageFileType);
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