传递输入类型文件数组

Question

I tried my best researching on how to pass an input type file array to another php page. But I get stuck everytime I post the value from one page to the other.

I have this code written on the page cityaddinfo.php which on submits directs to the page cityadded.php

    <form method="POST" action="cityadded.php?city=<?php echo $city?>">

        <tr>
            <td>
            <?php
                $quecityimage=mysql_query("SELECT * FROM `city_image` WHERE city_id=$city");
                echo "<b>city images</b><br>";

                while($cityimage=mysql_fetch_assoc($quecityimage))
                {
                    $pathcity=$cityimage['path'];
                    echo "<img src='$pathcity' width=\"400px\" height=\"200px\"/><br><br>";

                }
            ?>

            </td>
        </tr>
        <tr>            
             <td>
            <p class="clone">  File:
            <input type="file" name="f_name[]" size="10" style="font-family: arial; font-size: 22px;"/>
            <p>
            <a href="#" class="add" rel=".clone">Add More</a>
            </p>
            </td>
        </tr>

        <tr>
            <td>
            <input type="submit" value="submit" name="submit">  
            </td>
        </tr>

cityadded.php code:

    <?php
     echo $_GET['city'];
   if(isset($_POST['submit']))
   {
   $a= $_POST['f_name'];
     foreach($a as $img)
     {
       echo $img;
     }
   }
   ?>

The code echo's the name of only one input type file name. Even if I add more than one files. Can anybody help me out on how to post this input file array on other page? Thanks in advance :)

Answer 1

You have lot of errors,

1. $a= $_POST['f_name']; you can not access file field like this you should use $_FILES instead.

2. When you want to upload file using form you should have enctype="multipart/form-data" in form attribute I don't see that too. I think you need to learn some basics.

Answer 2

使用$ _FILES代替$ _POST来存储文件。

Answer 3

Add this to your form :

enctype="multipart/form-data"

Example:

<form method="POST" action="cityadded.php?city=<?php echo $city?>" enctype="multipart/form-data">

Answer 4

you need to have enctype = "multipart/form-data" set in your form tag. You can access the file on your PHP script using $_FILES and not $_POST.

HTML:

<input type="file" name="file_sent" size="10" style="font-family: arial; font-size: 22px;"/>

on PHP Page you can access the same using the following

 $_FILES["file_sent"]["name"] - the name of the uploaded file
    $_FILES["file_sent"]["type"] - the type of the uploaded file
    $_FILES["file_sent"]["size"] - the size in kilobytes of the uploaded file
    $_FILES["file_sent"]["tmp_name"] - the name of the temporary copy of the file stored on the server
    $_FILES["file_sent"]["error"] - the error code resulting from the file upload

EDIT: I dont see why you would want to have the other attributes on the file field in the HTML page. I dont think these attributes would work on a file field. Even if the they do, move them to a stylesheet.

Refer to this. http://php.net/manual/en/features.file-upload.multiple.php you need to access them using indexes since you are passing an array of file elements.