我采用了来自https://stackoverflow.com/a/44553006/8719001的代码
但无法弄清楚为什么当多次上传同一个文件“test.jpg”时它只计数一次，创建“test-1.jpg”但不是更多，即。测试 2.jpg，测试 3.jpg。
任何人都可以发现问题并提供帮助吗？
$keepFilesSeperator = "-";
$keepFilesNumberStart = 1;
if (isset($_FILES['upload'])) {
// Be careful about all the data that it's sent!!!
// Check that the user is authenticated, that the file isn't too big,
// that it matches the kind of allowed resources...
$name = $_FILES['upload']['name'];
//If overwriteFiles is true, files will be overwritten automatically.
if(!$overwriteFiles)
{
$ext = ".".pathinfo($name, PATHINFO_EXTENSION);
// Check if file exists, if it does loop through numbers until it doesn't.
// reassign name at the end, if it does exist.
if(file_exists($basePath.$name))
{
$operator = $keepFilesNumberStart;
//loop until file does not exist, every loop changes the operator to a different value.
while(file_exists($basePath.$name.$keepFilesSeperator.$operator))
{
$operator++;
}
$name = rtrim($name, $ext).$keepFilesSeperator.$operator.$ext;
}
}
move_uploaded_file($_FILES["upload"]["tmp_name"], $basePath . $name);
}