Question

我从w3schools复制了php上传脚本，我做了一些更改来更改文件名。

我唯一可以做的就是在文件名的第一个中添加一个随机名称，但我需要从上传的文件中删除其原始名称。

例如我有一个名为＆＃34; abc.jpg＆＃34;

的文件

上传此文件后，我可以将其更改为随机名称+此类原始名称＆＃34; 2716c3f3e9d6dd0a2b89f047b938750520aaa.jpg＆＃34;

如何删除原始名称＆＃34; aaa＆＃34;从此代码中上传的文件名末尾开始？

先谢谢

$rand = md5(md5(time()).md5(microtime())).rand(10,25);
$target_dir = "images/futsal/";
$file = $rand . basename($_FILES['fileperson']["name"]);
$target_file = $target_dir . $rand . basename($_FILES['fileperson']["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
    $check = getimagesize($_FILES['fileperson']["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['fileperson']["size"] > 50000000) {
    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['fileperson']["tmp_name"], $target_file)) {
        echo "file ". $file . " uploaded.";
    } else {
        echo "Sorry, there was an error uploading your file.";
    }
}

Answer 1

您要在$target_file变量的末尾添加上传的文件名。

更新代码以移除$_FILES['fileperson']["name"]中的$target_file。

$rand = md5(md5(time()).md5(microtime())).rand(10,25);
$target_dir = "images/futsal/";
$imageFileType = pathinfo($_FILES['fileperson']["name"],PATHINFO_EXTENSION);
$file = $rand . $imageFileType;
$target_file = $target_dir . $file;

Answer 2

替换此行：

$target_file = $target_dir . $rand . basename($_FILES['fileperson']["name"]);

以下内容：

$extension = preg_replace('/.+?(\.[^.]+)$/', '$1', $_FILES['fileperson']['name']);
$extension = $extension ? $extension : '.unknown';
$target_file = $target_dir . $rand . $extension;

如何在下面的脚本中更改php中上传文件的名称

2 个答案: