要上传多个文件，您可以拥有。
Multiupload.php
<? session_start()?>
<!DOCTYPE html>
<html>
<head>
<title>Blank</title>
<!-------Including jQuery from google------>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="js/script.js"></script>
<!-------Including CSS File------>
<link rel="stylesheet" type="text/css" href="css/style.css">
<link rel="stylesheet" type="text/css" href="css/main.css">
<body>
<div id="formdiv">
<h1 class="uploadH2">Upload Your Artwork</h1>
<form enctype="multipart/form-data" action="" method="post">
Take a photo, upload your artwork, or choose an image from Facebook or Instagram
<label for="file">
<div id="image" style="margin-top:5%;">
<img src="img/camera.png">
</div>
</label>
<div id="filediv"><input name="file[]" type="file" id="file"/></div><br/>
<input type="button" class="add_more" id="add_more" value="Add More Files"/>
<input type="submit" value="Upload File" name="submit" id="img_upload" class="show-page-loading-msg" data-theme="b" data-textonly="false" data-textvisible="false" data-msgtext="" data-icon="arrow-r" data-iconpos="right"/>
</form>
<br/>
<br/>
<!-------Including PHP Script here------>
<?php include "uploadScript.php"; ?>
</div>
</body>
</html>
上传脚本.php
<?php
$dir_id = session_id(md5(uniqid()));
session_start($dir_id);
$path = "uploads/";
$dir = $path.$dir_id;
$path = $path.$dir_id."/";
if (file_exists($dir)) {
system('/bin/rm -rf ' . escapeshellarg($dir));
} else {
mkdir($path);
chmod($path, 0722);
}
$_SESSION["id"] = $dir_id;
$_SESSION["directory"] = "/" . $dir;
$_SESSION["path_name"] = $path;
?>
<?
if (isset($_POST['submit'])) {
$j = 0; //Variable for indexing uploaded image
$target_path = $path;
for ($i = 0; $i < count($_FILES['file']['name']); $i++) {//loop to get individual element from the array
$validextensions = array("jpeg", "jpg", "png", "gif"); //Extensions which are allowed
$ext = explode('.', basename($_FILES['file']['name'][$i]));//explode file name from dot(.)
$file_extension = end($ext); //store extensions in the variable
$target_path = $target_path . md5(uniqid()) . "." . $ext[count($ext) - 1];//set the target path with a new name of image
$j = $j + 1;//increment the number of uploaded images according to the files in array
if (($_FILES["file"]["size"][$i] < 100000) //Approx. 100kb files can be uploaded.
&& in_array($file_extension, $validextensions)) {
if (move_uploaded_file($_FILES['file']['tmp_name'][$i], $target_path)) {//if file moved to uploads folder
echo $j. ').<span id="noerror">Image uploaded successfully!.</span><br/><br/>';
} else {//if file was not moved.
echo $j. ').<span id="error">Only JPG, JPEG, PNG and GIF files types allowed.</span><br/><br/>';
}
} else {//if file size and file type was incorrect.
echo $j. ').<span id="error">***Invalid file Size or Type***</span><br/><br/>';
}
}
}
?>
此脚本只接受 jpg、png、gif 和 jpeg。除非您是所有者并且文件大小不能超过 10KB，否则您无法在目录中上传或执行任何内容。
script.js
var abc = 0; //Declaring and defining global increement variable
$(document).ready(function() {
//To add new input file field dynamically, on click of "Add More Files" button below function will be executed
$('#add_more').click(function() {
$(this).before($("<div/>", {id: 'filediv'}).fadeIn('slow').append(
$("<input/>", {name: 'file[]', type: 'file', id: 'file'}),
$("<br/><br/>")
));
});
//following function will executes on change event of file input to select different file
$('body').on('change', '#file', function(){
if (this.files && this.files[0]) {
abc += 1; //increementing global variable by 1
var z = abc - 1;
var x = $(this).parent().find('#previewimg' + z).remove();
$(this).before("<div id='abcd"+ abc +"' class='abcd'><img id='previewimg" + abc + "' src='' style='width:40%; height:40%;'/></div>");
var reader = new FileReader();
reader.onload = imageIsLoaded;
reader.readAsDataURL(this.files[0]);
$(this).hide();
$("#abcd"+ abc).append($("<img/>", {id: 'delete', src: 'x.png', alt: 'delete'}).click(function() {
$(this).parent().parent().remove();
}));
}
});
//To preview image
function imageIsLoaded(e) {
$('#previewimg' + abc).attr('src', e.target.result);
};
$('#upload').click(function(e) {
var name = $(":file").val();
if (!name)
{
alert("First Image Must Be Selected");
e.preventDefault();
}
else {}
});
});
这将上传多个文件，在与上传表单相同的页面上预览图像，这将在服务器上的 /uploads 内创建一个目录，该目录与用户 session_id() 匹配。如果该目录存在，则该目录将被删除，如果不存在，则该目录将被创建。然后文件将上传到服务器上的该目录。