在php中上传docx，zip，rar，pdf，ppt

Question

我正在尝试制作文件上传页面，其中docx，zip，rar，pdf，ppt这些扩展名仅允许在此处上传，我为此编写了代码，但显示无效的文件类型错误有助于解决该问题

$allowed_types = array('zip','rar','docx','ppt');
$tmp = explode(".", $_FILES['file']['name']);
$ext = end($tmp);
$upload_dir ="uploads/assignments/";
if(isset($_FILES['file']) && $_FILES['file']['name'] !=""){
if( ($_FILES['file']['type']=="application/zip")
|| ($_FILES['file']['type']=="application/rar")
|| ($_FILES['file']['type']=="'application/docx'")
|| ($_FILES['file']['type']=="application/ppt")
&& ($_FILES['file']['size']<400000)
&& in_array($ext,$allowed_types))

Answer 1

用这个

$allowed =  array('zip','rar','docx','ppt');//allowed types
$filename = $_FILES['file']['name'];//file name

$ext = pathinfo($filename, PATHINFO_EXTENSION);//extension checking

if(!in_array($ext,$allowed) )
{
    echo 'Not Valid';
}
else
{
    echo ' Valid'
}