php记录（自留）

最新推荐文章于 2023-06-01 12:12:25 发布

原创最新推荐文章于 2023-06-01 12:12:25 发布 · 181 阅读

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文章标签：

1、php中的递归查找文件夹,php递归获取目录内的文件，包含子目录（转载自 https://blog.youkuaiyun.com/weixin_39734184/article/details/115537343?spm=1001.2101.3001.6650.1&utm_medium=distribute.pc_relevant.none-task-blog-2_defaultCTRLIST_{default-1-115537343-blog-54885837.pc_relevant_default&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2}default_CTRLISTdefault-1-115537343-blog-54885837.pc_relevant_default&utm_relevant_index=2）

download.php
<?php
require_once 'functions.php';
 
//排空错误
if(empty($_GET['id'])){
    die('id is empty');
}
//连接数据库
connnetDb();
 
$id=intval($_GET['id']);

function readFileFromDir($dir) {
if (!is_dir($dir)) {
return false;

}

//打开目录

$handle = opendir($dir);

while (($file = readdir($handle)) !== false) {
//排除掉当前目录和上一个目录

if ($file == "." || $file == "..") {
continue;

}

$file = $dir . DIRECTORY_SEPARATOR . $file;

//如果是文件就打印出来，否则递归调用

if (is_file($file)) {
print $file . '
';

} elseif (is_dir($file)) {
readFileFromDir($file);

}

}

}
$dir = '/phpstudy_pro/WWW/today/results';

readFileFromDir($dir);



?>

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>显示文件</title>

</head>
<body>

<button>

    <a href = "http://today:8090/results/.txt">

    下载文件</button>

效果：获取文件目录并且显示在页面上

2、php三种方式下载文件
（转载自：https://www.php.cn/php-weizijiaocheng-390215.html)

1、直接添加文件链接

<button>

    <a href = "http://localhost/down.zip">

    下载文件</button>

2、传递参数查找并跳转到下载链接

<button>

    <a href = "http://localhost?f='down'">

    下载文件

</button>

<?php$down = $_GET['f'];   //获取文件参数
$filename = $down.'.zip'; //获取文件名称
$dir ="down/";  //相对于网站根目录的下载目录路径$down_host = $_SERVER['HTTP_HOST'].'/'; //当前域名//判断如果文件存在,则跳转到下载路径if(file_exists(__DIR__.'/'.$dir.$filename)){

    header('location:http://'.$down_host.$dir.$filename);

}else{

    header('HTTP/1.1 404 Not Found');

}

3、head() 和 fread()函数把文件直接输出到浏览器

<?php  

$file_name = "down";$file_name = "down.zip";     //下载文件名    $file_dir = "./down/";        //下载文件存放目录    //检查文件是否存在    if (! file_exists ( $file_dir . $file_name )) {    

    header('HTTP/1.1 404 NOT FOUND');  

} else {    

    //以只读和二进制模式打开文件   

    $file = fopen ( $file_dir . $file_name, "rb" ); 
    //告诉浏览器这是一个文件流格式的文件    

    Header ( "Content-type: application/octet-stream" ); 

    //请求范围的度量单位  

    Header ( "Accept-Ranges: bytes" );  

    //Content-Length是指定包含于请求或响应中数据的字节长度    

    Header ( "Accept-Length: " . filesize ( $file_dir . $file_name ) );  

    //用来告诉浏览器，文件是可以当做附件被下载，下载后的文件名称为$file_name该变量的值。

    Header ( "Content-Disposition: attachment; filename=" . $file_name );    
    //读取文件内容并直接输出到浏览器    

    echo fread ( $file, filesize ( $file_dir . $file_name ) );    

    fclose ( $file );    

    exit ();    

}



效果：<button>

    <a href = "http://today:8090?f='results'">

    下载文件</button>
回跳转到html后台页面。file:///G:/phpstudy_pro/WWW/today/index.html

更换文件夹名字为group,结果一样。



4、PHP文件下载函数(代码)
https://www.php.cn/php-weizijiaocheng-233298.html#:~:text=php%E5%AE%9E%E7%8E%B0%E6%96%87%E4%BB%B6%E4%B8%8B%E8%BD%BD%E7%9A%84%E5%87%BD%E6%95%B0%EF%BC%8C%E5%85%B7%E4%BD%93%E5%87%BD%E6%95%B0%E4%BB%A3%E7%A0%81%E5%A6%82%E4%B8%8B%EF%BC%9A%20function%20download%20%28%24file_url%2C%24new_name%3D%27%27%29%20%7B%20if,%28%21isset%20%28%24file_url%29%7C%7Ctrim%20%28%24file_url%29%3D%3D%27%27%29%20%7B%20return%20%27500%27%3B





```php
function download($file_url,$new_name=''){

 if(!isset($file_url)||trim($file_url)==''){
 return '500';
 }
 if(!file_exists($file_url)){ //检查文件是否存在
 return '404';
 }
 $file_name=basename($file_url);
 $file_type=explode('.',$file_url);
 $file_type=$file_type[count($file_type)-1];
 $file_name=trim($new_name=='')?$file_name:urlencode($new_name).'.'.$file_type;
 $file_type=fopen($file_url,'r'); //打开文件
 //输入文件标签
 header("Content-type: application/octet-stream");
 header("Accept-Ranges: bytes");
 header("Accept-Length: ".filesize($file_url));
 header("Content-Disposition: attachment; filename=".$file_name);
 //输出文件内容
 echo fread($file_type,filesize($file_url));
 fclose($file_type);
}

10 条评论

wenroude714 2022.05.30
https://haveyb.blog.youkuaiyun.com/article/details/79357434?spm=1001.2101.3001.6650.4&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7ERate-4-79357434-blog-89726836.pc_relevant_antiscanv3&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7ERate-4-79357434-blog-89726836.pc_relevant_antiscanv3&utm_relevant_index=9 PHP上传图片到数据库，并进行显示

wenroude714 2022.05.30
能用：https://www.jb51.net/article/61034.htm

wenroude714 2022.05.30
https://blog.youkuaiyun.com/bboyjoe/article/details/48731223?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522165388832916780366595499%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=165388832916780366595499&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~sobaiduend~default-2-48731223-null-null.142^v11^pc_search_result_control_group,157^v12^new_style1&utm_term=php%E4%B8%8Emysql%E5%AE%9E%E7%8E%B0%E7%94%A8%E6%88%B7%E6%95%B0%E6%8D%AE%E7%9A%84%E5%A2%9E%E5%88%A0%E6%94%B9%E6%9F%A5&spm=1018.2226.3001.4187

wenroude714 2022.05.27
读取文件夹下所有文件并做成链接php；php给文件夹一个链接,PHP - 从文件夹链接；当在服务器中访问www目录之外的文件时，可使用创建软链接的方式：https://blog.youkuaiyun.com/weixin_39820185/article/details/115194870?ops_request_misc=&request_id=&biz_id=102&utm_term=php%E7%BB%99%E6%96%87%E4%BB%B6%E5%A4%B9%E4%B8%80%E4%B8%AA%E8%BF%9E%E6%8E%A5&utm_medium=distribute.pc_search_result.none-task-blog-2~all~sobaiduweb~default-2-115194870.142^v11^pc_search_result_control_group,157^v12^new_style1&spm=1018.2226.3001.4187

wenroude714 2022.05.27
php 快速读取文件夹下文件列表https://blog.youkuaiyun.com/myarche/article/details/81009961?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522165364486416782388028092%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=165364486416782388028092&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~sobaiduend~default-1-81009961-null-null.nonecase&utm_term=php%E8%AF%BB%E5%8F%96%E6%96%87%E4%BB%B6%E5%A4%B9%E4%B8%8B%E6%89%80%E6%9C%89%E6%96%87%E4%BB%B6&spm=1018.2226.3001.4450

wenroude714 2022.05.27
PHP获取表单提交的文件 https://blog.youkuaiyun.com/qq_41901122/article/details/101396053?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522165364533816780366556322%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=165364533816780366556322&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_ecpm_v1~rank_v31_ecpm-1-101396053-null-null.nonecase&utm_term=php+%E8%A1%A8%E5%8D%95%E6%96%87%E4%BB%B6%E4%B8%8B%E8%BD%BD&spm=1018.2226.3001.4450

wenroude714 2022.05.27
https://www.cnblogs.com/timelesszhuang/p/4330063.html HP获取当前文件路径信息的方法 _

wenroude714 2022.05.27
https://www.cnblogs.com/jiuxinkeji/p/11228593.html 一个完整的php上传

wenroude714 2022.05.27
https://www.jb51.net/article/119260.htm#:~:text=php%E8%87%AA%E5%B8%A6%E6%9C%89ftp%E6%93%8D%E4%BD%9C%E7%9A%84%E5%87%BD%E6%95%B0%E5%8C%85%EF%BC%8C%E4%B8%80%E4%B8%AA%E6%AF%94%E8%BE%83%E7%AE%80%E5%8D%95%E5%AE%9E%E7%8E%B0%E7%9A%84ftp%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0%E6%93%8D%E4%BD%9C%E5%8F%AF%E4%BB%A5%E9%80%9A%E8%BF%87%E4%BB%A5%E4%B8%8B%E5%87%A0%E4%B8%AA%E6%AD%A5%E9%AA%A4%E6%9D%A5%E5%AE%8C%E6%88%90%EF%BC%9A%201%E3%80%81%E7%A1%AE%E8%AE%A4ftp,server%E7%9A%84ip%E5%9C%B0%E5%9D%80%E4%B8%8Eport%E7%AB%AF%E5%8F%A3%E4%BF%A1%E6%81%AF%EF%BC%88%E5%A6%82%E6%9E%9C%E4%BD%BF%E7%94%A8%E7%9A%84%E6%98%AF%E9%BB%98%E8%AE%A4%E7%AB%AF%E5%8F%A3%E5%88%99%E5%8F%AF%E4%BB%A5%E4%B8%8D%E5%85%B3%E5%BF%83%EF%BC%89%EF%BC%9B%202%E3%80%81%E8%BF%9B%E8%A1%8Cftp_connect%E6%93%8D%E4%BD%9C%EF%BC%8C%E8%BF%9E%E6%8E%A5%E5%88%B0ftp%20server%EF%BC%88%E9%9C%80%E8%A6%81%E6%B3%A8%E6%84%8F%E4%B8%80%E4%B8%8B%E6%98%AF%E5%90%A6%E8%AE%BE%E7%BD%AE%E4%BA%86port%E5%8F%82%E6%95%B0%EF%BC%89%EF%BC%9B ftp php