检查zip或rar档案是否为空或Php损坏

Question

我有一个非常简单的脚本，只允许用户上传.zip或.rar文件。我想知道如何知道文件是否已损坏或为空？

这是我的脚本

if(isset($_POST['customerid']) && $_FILES['file']['tmp_name'] && $_POST['requestid']){
//post variables
$customerid = $_POST['customerid'];
$filename = $_FILES['file']['name'];
$requestid = $_POST['requestid'];
//check if the file is .rar or .zip
$fileInfo = new finfo(FILEINFO_MIME_TYPE);
$fileMime = $fileInfo->file($_FILES['file']['tmp_name']);
$validMimes = array( 
'zip' => 'application/zip',
'rar' => 'application/x-rar',
);
$fileExt = array_search($fileMime, $validMimes, true);
if($fileExt != 'zip' && $fileExt != 'rar'){
echo 'Not a zip or rar.';
}
//check if the file is corrupted or empty

//if all OK insert file name and path to database
$uservalida_stmt = $conn->prepare("INSERT INTO user_project_files (dateCreated,userid,projectFile,serviceRequestId) VALUES (?,?,?,?)");
$uservalida_stmt ->bind_param('siss',$currentdate,$customerid,$filename,$requestid);
$uservalida_stmt ->execute();
$uservalida_stmt ->close();
//move upload and EXTRACT file to directory
move_uploaded_file($_FILES['file']['tmp_name'], '../user/project/' . $_FILES['file']['name']);
}

Answer 1

PHP手册中有zip的例子。http://php.net/manual/en/zip.examples.php

<?php
$za = new ZipArchive();
$za->open('test_with_comment.zip');
print_r($za);
var_dump($za);
echo "numFiles: " . $za->numFiles . "n";
echo "status: " . $za->status  . "n";
echo "statusSys: " . $za->statusSys . "n";
echo "filename: " . $za->filename . "n";
echo "comment: " . $za->comment . "n";
echo "numFile:" . $za->numFiles . "n";
?>

或者简单地在open函数上检查错误代码(http://php.net/manual/en/ziparchive.open.php)

---

您也可以对RAR文件执行类似操作(http://php.net/manual/en/rararchive.open.php)但需要先安装(http://php.net/manual/en/rar.installation.php)。