如何更改为文件输入形式或“ input type ='file'”显示的文本

Question

Is there an attribute for this? Because if there is I can't find it.

What I want to do is just echo out the file name that was selected by the user after the form is submitted. To be clear, it already shows the file name, but problem is that the form could get submitted in the wrong state, in which case, the yellow text goes back to "No file chosen." I just need the file name to persist after submitting the form.

I have a form...

 <form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" enctype="multipart/form-data">



                    <?php
//upload files here. 

                    $fcount = 0;
                    foreach ($layouts[$my_layout] as $key => $value) {
                        //create the form
                        echo 'choose an image with an aspect ratio of ' . $value;
                        ?>
                    <input type="file" name="filesToUpload[]" >
</form>

on the page, I want to change the yellow text to the file name, when such a file is chosen, once the form is submitted.

Answer 1

While your explicit question is asking how to change the text, the implied question is that you want to set the value of the input so the same file will be uploaded again.

You can't do that. That would require allowing the page author to determine what file gets uploaded from the user's computer. This would be a serious security risk.

What you can do is store the uploaded file on the server (eg in a temp directory that has old files deleted on a regular basis, eg with cron), and put a reference to it in the new form.

 <label> <input type="checkbox" name="already_uploaded_file" value="my_file_identifier" checked> Use foo.jpeg </label> 
 <label> Upload a different file <input type="file" name="foo"> </label>

Answer 2

Once you have the File, you should be able to get a originalName property from it. Try $fileName = $request->file('name')->getClientOriginalName(); .

Note: this is untested and I am assuming that both the file() method on the Request object returns an UploadedFile instance and that Laravel's UploadedFile class is either extending Symfony's class or using it directly.