php - 如何避免使用空格和/或特殊字符的文件名

Question

我有一个网络表单来上传用户的图片。然后我正在创建一个 iOS 应用程序来显示从用户加载的图片。但如果文件名包含空格或特殊字符(如 á、é、í、ó、ú、ñ 等)，应用程序不会加载图片，大多数用户来自西类牙...

这是我使用的代码:

<?php if ((isset($_POST["enviado"])) && ($_POST["enviado"] == "form1")) {
    $randomString = substr(str_shuffle("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, 1) . substr(str_shuffle("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, 10);

echo $randomString;
    $nombre_archivo = $_FILES['userfile']['name']; 
    move_uploaded_file($_FILES['userfile']['tmp_name'], "logos/".$randomString.$nombre_archivo);

    ?>

我正在使用随机函数来避免重复文件名。

我如何更改用户给定的文件名，其中可能包含空格和/或特殊字符，以一种可以完美加载到 iOS 应用程序中的方式？

Answer 1

上传后重命名文件。这是对评论中 OP 问题的回答

// get the uploaded file's temp filename
$tmp_filename = $_FILES['userfile']['tmp_name'];

// get the file's extension
$path = $_FILES['userfile']['name'];
$ext = pathinfo($path, PATHINFO_EXTENSION);

// rename the uploaded file with a timestamp, insert the destination directory and add the extension
$new_filename = 'logos/'.date('Ymdhms').'.'.$ext;

// put the renamed file in the destination directory
move_uploaded_file($tmp_filename, $new_filename);

---

编辑:每个 OP 问题的新答案

<?php
     if((isset($_POST["enviado"])) && ($_POST["enviado"] == "form1")) {
        // get the uploaded file's temp filename
        $tmp_filename = $_FILES['userfile']['tmp_name'];

        // get the file's extension
        $path = $_FILES['userfile']['name'];
        $ext = pathinfo($path, PATHINFO_EXTENSION);

        // rename the uploaded with a timestamp file, add the extension and assign the directory
        $new_filename = 'logos/'.date('Ymdhms').'.'.$ext;

        // put the renamed file in the destination directory
        move_uploaded_file($tmp_filename, $new_filename);
    }