如何获取发送的类型或id数据？ [关闭]

Question

I have this code for send date:

<form enctype="multipart/form-data" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="post">
    <input name="file[]" type="file" id="img">
    <textarea name="file[]" rows="5" cols="50" id="textarea"></textarea>
    <input name="file[]" type="text" id="text" value="">
    <input type="submit" value="upload" name="submit" id="upload" class="upload"/>
</form>

and this code:

<?php
    if (isset($_POST['submit'])){
        $textarea=$_POST['file'];
        $implodetextarea=implode(",",$textarea);
        for ($i = 0; $i < count($textarea); i++){
            echo $textarea['id'][$i];//This is wrong 
        }
    }
?>

Now how to get the type of data and how you can distinguish between the image or text, or others?

Answer 1

You can look for the files mime type.