php 下载代码,在苹果下不好用!
- PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->$file = fopen($filename, "r ");Header( "Content-type: application/octet-stream ");Header( "Accept-Ranges: bytes ");Header( "Accept-Length:".filesize($filename));Header( "Content-Disposition:attachment;filename= ".$filename);echo fread($file,filesize($filename));fclose($file);
刚开始用的这个,直接就把内容输出到页面上了。后来又找了个函数
- PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->function download_file($archivo, $downloadfilename = null) { if (file_exists($archivo)) { $downloadfilename = $downloadfilename !== null ? $downloadfilename : basename($archivo); header('Content-Description: File Transfer'); header('Content-Type: application/octet-stream'); header('Content-Disposition: attachment; filename=' . $downloadfilename); header('Content-Transfer-Encoding: binary'); header('Expires: 0'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Pragma: public'); header('Content-Length: ' . filesize($archivo)); ob_clean(); flush(); readfile($archivo); exit; } }
效果还是一样,求高手解决!
下面是我和一个人的对话:
苹果的接口直接给资源地址就行了
追问
就是说 直接将链接地址设为文件的地址,对吧! 我试过了,不会弹出下载框,也是直接输出要页面!
回答
我刚问过手机组,苹果的操作系统跟windows不同,没有权限下载东西,即使可以下载东西,苹果也不会分配给你存储空间去存储资源。苹果只会识别应用,并且给应用分配一定的空间存储,若要让苹果下载资源,请走应用渠道。
追问
但是我平时有用苹果的操作系统下载东西啊! 就是在网上点下载的时候会弹出下载提示框的! 但是不确定该网站的服务器用的是什么操作系统。 你的意思是不是,苹果的服务器不提供下载? 那么是不是所有拿苹果当服务器的网站都没有下载的功能?
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这些参数看看有用没?
http://apps.hi.baidu.com/share/detail/35570157
http://blog.csdn.net/starzxf/article/details/6746876
http://iask.sina.com.cn/b/6263205

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

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PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.


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