Php 将所有文件压缩为 zip 的代码无法正常工作

Question

我有这个脚本可以从数据库中以 zip 格式下载所有文件，但它只获取数据库中保存的第一个文件 - 其他文件没有显示。

下面是我在数据库中的文件列表，我想将其包含在 zip 中：

lginin

logersutil.php

lgininh.js

Readme.md

还有我的代码：

<?php
 if(isset($_POST['download'])){
try{
$db_conn = new PDO('mysql:host='.DB_HOST.';dbname='.DB_NAME,DB_USERNAME,DB_PASSWORD);
$db_conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$post_stmt = $db_conn->prepare("SELECT * FROM jailorgchild WHERE jailchildbasname = :BasNameJa");
$post_stmt->bindParam(':BasNameJa', basename(dirname(__FILE__)));
$post_stmt->execute();
while ($rowss = $post_stmt->fetch(PDO::FETCH_ASSOC)){

    $files = array(''.$rowss["jailchillink"].'','codejail.cj');

    # create new zip opbject
    $zip = new ZipArchive();

    # create a temp file & open it
    $tmp_file = tempnam('.','');
    $zip->open($tmp_file, ZipArchive::CREATE);

    # loop through each file
    foreach($files as $file){

        # download file
        $download_file = file_get_contents($file);

        #add it to the zip
        $zip->addFromString(basename($file),$download_file);

    }

    # close zip
    $zip->close();

    # send the file to the browser as a download
    header('Content-disposition: attachment; filename='.basename(dirname(__FILE__)).'.zip');
    header('Content-type: application/zip');
    readfile($tmp_file);

} }catch (PDOException $e){ echo 'Connection failed: ' . $e->getMessage();} 
 }
?>

Answer 1

在您当前的代码中，您基本上是在制作 1 个新的 zip 文件并为每一行返回它。由于客户端只能读取 1 个响应，他们显然不会看到超过 1 行。

所以您需要做的是，确保在发送之前将所有文件添加到 zip 。像这样：

<?php if(isset($_POST['download'])){ try{ $db_conn = new PDO('mysql:host='.DB_HOST.';dbname='.DB_NAME,DB_USERNAME,DB_PASSWORD); $db_conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $post_stmt = $db_conn->prepare("SELECT * FROM jailorgchild WHERE jailchildbasname = :BasNameJa"); $post_stmt->bindParam(':BasNameJa', basename(dirname(__FILE__))); $post_stmt->execute(); // here we create a temporary array to hold all the filenames // and fill it with the file you always want to have inserted $files = array('codejail.cj'); while ($rowss = $post_stmt->fetch(PDO::FETCH_ASSOC)){ // now fill the array with your files $files[] = $rowss['jailchillink']; } // and now we finally start processing them all, after having finished reading from the DB # create new zip opbject $zip = new ZipArchive(); # create a temp file & open it $tmp_file = tempnam('.',''); $zip->open($tmp_file, ZipArchive::CREATE); # loop through each file foreach($files as $file){ # download file $download_file = file_get_contents($file); #add it to the zip $zip->addFromString(basename($file),$download_file); } # close zip $zip->close(); # send the file to the browser as a download header('Content-disposition: attachment; filename='.basename(dirname(__FILE__)).'.zip'); header('Content-type: application/zip'); readfile($tmp_file); } catch (PDOException $e){ echo 'Connection failed: ' . $e->getMessage(); }

} ?>

Php 将所有文件压缩为 zip 的代码无法正常工作

Php code to compress all files as zip not working fine

php

zip