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本文实例讲述了php简单实现批量上传图片的方法。分享给大家供大家参考，具体如下：

<?php

function upload_multi($path,$photo,$i){

$uploaddir = './'.$path;//文件存放目录

if(!file_exists($uploaddir))//如果目录不存在就新建

$uploaddir=mkdir($uploaddir);

$piece = explode('.',$photo['name'][$i]);

$uploadfile = $uploaddir . '/'.md5($piece[0]).'.'.$piece[1];

$result = move_uploaded_file($photo['tmp_name'][$i], $uploadfile);

if(!$result){

exit('上传失败');

}

return basename($uploadfile);

}

if($_POST['tijiao']){

extract($_POST);

$i=0;

foreach ($_FILES["pictures"]["error"] as $key => $error) {

if ($error == UPLOAD_ERR_OK) {

upload_multi($email,$_FILES["pictures"],$i);

}

$i++;

}

}

?>

<script language="javascript">

function go_up(){

document.getElementById('new_up').innerHTML+='<input type="file" name="pictures[]" /><br>';

}

</script>

<form action="index.php" method="post" enctype="multipart/form-data">

<p>多图片上传</p><br>

<input type="file" name="pictures[]" /><br>

<div id="new_up"></div>

<input type="button"" name="add_img" value="新增上传" onclick="go_up()"/><br>

<input type="submit" value="Send" name="tijiao"/><br>

</form>

希望本文所述对大家PHP程序设计有所帮助。