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    ▪php实现文件下载(多种文件格式)的代码      php文件下载代码，如下： 代码示例: <?php /** * 文件下载 * 多种文件格式，包括pdf、zip、gif、jpg、mpeg、word等。 * edit www. */ function dl_file($file){     //First, see if the file exists     if (!is_f.........

    ▪php实现文件下载功能的简单例子      1，html内容部分   代码示例: <a href="/blog_article/get/file/help/amp;type/doc.html">nginx中文手册下载</a> 2，文件get.php，内容如下：   代码示例: <?php /** * php实现文件下载 * edit www. */ if (!isset()(GET[".........

    ▪php解析JSON与XML数据的实现代码      1，PHP解析JSON数据   代码示例: $json_string='{"id":1,"name":"foo","email":"foo@","interest":["wordpress","php"]} '; $obj=json_decode()($json_string); echo $obj->name; //prints foo echo $obj->interest[1]; //prints php 2，PHP解析X.........

代码示例:

<?php
/**
* 文件下载
* 多种文件格式，包括pdf、zip、gif、jpg、mpeg、word等。
* edit www.
*/
function dl_file($file){
    //First, see if the file exists
    if (!is_file($file)) { die("<b>404 File not found!</b>"); }

    //Gather relevent info about file
    $len = filesize($file);
    $filename = basename($file);
    $file_extension = strtolower()(substr(strrchr($filename,"."),1));

    //This will set the Content-Type to the appropriate setting for the file
    switch( $file_extension ) {
          case "pdf": $ctype="application/pdf"; break;
      case "exe": $ctype="application/octet-stream"; break;
      case "zip": $ctype="application/zip"; break;
      case "doc": $ctype="application/msword"; break;
      case "xls": $ctype="application/vnd.ms-excel"; break;
      case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
      case "gif": $ctype="image/gif"; break;
      case "png": $ctype="image/png"; break;
      case "jpeg":
      case "jpg": $ctype="image/jpg"; break;
      case "mp3": $ctype="audio/mpeg"; break;
      case "wav": $ctype="audio/x-wav"; break;
      case "mpeg":
      case "mpg":
      case "mpe": $ctype="video/mpeg"; break;
      case "mov": $ctype="video/quicktime"; break;
      case "avi": $ctype="video/x-msvideo"; break;

      //The following are for extensions that shouldn't be downloaded (sensitive stuff, like php files)
      case "php":
      case "htm":
      case "html":
      case "txt": die("<b>Cannot be used for ". $file_extension ." files!</b>"); break;

      default: $ctype="application/force-download";
    }

    //Begin writing headers
    header("Pragma: public");
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Cache-Control: public");
    header("Content-Description: File Transfer");
   
    //Use the switch-generated Content-Type
    header("Content-Type: $ctype");

    //Force the download
    $header="Content-Disposition: attachment; filename=".$filename.";";
    header($header );
    header("Content-Transfer-Encoding: binary");
    header("Content-Length: ".$len);
    @readfile($file);
    exit;
}
?>

代码示例:

<a href="/blog_article/get/file/help/amp;type/doc.html">nginx中文手册下载</a>

代码示例:

<?php
/**
* php实现文件下载
* edit www.
*/
if (!isset()(GET["file"]) || !isset(GET["type"])) { 
print "no file selsect"; exit();
}

$file = GET["file"].".".GET["type"];
if (@$fp = fopen($file,'r')){
 header ("Content-type: octet/stream");
 if (strstr(SERVER["HTTP_USER_AGENT"], "MSIE")){
 header("Content-Disposition: filename=".mb_convert_encoding('nginx中文手册.doc','GB2312','UTF-8')); // For IE
 }else{
 header("Content-Disposition: attachment; filename=".mb_convert_encoding('nginx中文手册.doc','GB2312','UTF-8')); // For Other browsers 
} while(!@feof($fp)){
 echo fread($fp,1024); 
}
//@fpassthru($fp);
 exit();
} else{
 print "sorry，file not exists!";
}
?>

代码示例:

$json_string='{"id":1,"name":"foo","email":"foo@","interest":["wordpress","php"]} ';
$obj=json_decode()($json_string);
echo $obj->name; //prints foo
echo $obj->interest[1]; //prints php

代码示例:

$xml_string="<?xml version='1.0'?>
<users>
<user id='123'>
<name>Test</name>
<email>test@</name>
</user>
<user id='345'>
<name>News</name>
<email>fnews@xxx.net</name>
</user>
</users>";

//load the xml string using simplexml
$xml = simplexml_load_string($xml_string);

//loop through the each node of user
foreach ($xml->user as $user)
{
//access attribute
echo $user['id'], ' ';
//subnodes are accessed by -> operator
echo $user->name, ' ';
echo $user->email, '<br />';
}