结合php的上传方法，不使用插件，上传单文件
回复内容：
结合php的上传方法，不使用插件，上传单文件
我其实很想丢一句 「你给我去搜索啊啊啊！」 就不管你了 …
但考虑到搜索的结果水平良莠不齐 … 有些还错误百出 … 误导你不好 … 还是给你写一个吧 …
再说这问题放一天了没人理怪可怜的不是 … 恩 … 代码如下 …
<?php/* very simple template manager ... all html pages defined here ... */$template = function( $name, $param ) { $html = [/* a simple upload form ... */'UPLOAD_FORM' => function( $action ) { return <<< UPLOAD_FORM<title>Upload Example - Step 1 - Choose File</title><body> <!---ecms -ecms MAX_FILE_SIZE will parsed before your script runs ... --> UPLOAD_FORM;},/* a simple error page ... */'UPLOAD_ERROR' => function( $message ) { return <<< UPLOAD_ERROR<title>Upload Example - Step 2.1 - Error Occurs When Uploading</title><body><h2>Error</h2> <p>{$message}</p>UPLOAD_ERROR;},/* simple upload result page appears BEFORE file moved ... */'UPLOAD_RESULT_1' => function( array $info ) { return <<< UPLOAD_RESULT_1<title>Upload Example - Step 2.2 - Show Uploaded File Info</title><body><h2>Basic File Info</h2><dl> <dt>Name :</dt><dd>{$info['name']}</dd> <dt>Type :</dt><dd>{$info['type']}</dd> <dt>Size :</dt><dd>{$info['size']}</dd> <dt>Path :</dt><dd>{$info['tmp_name']}</dd></dl>UPLOAD_RESULT_1;},/* simple upload result page appears AFTER file moved ... */'UPLOAD_RESULT_2' => function( array $result ) { return <<< UPLOAD_RESULT_2<h2>Final Processing Result</h2><dl> <dt>From :</dt><dd>{$result['from']}</dd> <dt>Move To :</dt><dd>{$result['to']}</dd> <dt>Status :</dt><dd>{$result['status']}</dd></dl>UPLOAD_RESULT_2;} ];/* show the page off ... */echo isset( $html[$name] ) ? $html[$name]($param) : ''; return;};/* define where uploaded file should stored in ... */define( 'UPLOAD_PATH', 'upload' );/* simple way to judge whether we got a file or not ... */if ( ! isset( $_FILES['file'] ) ) /* no file ..? time to upload ... */ $template( 'UPLOAD_FORM', $_SERVER['PHP_SELF'] );/* well ... it seems that we have something to do ... */else { /* let us rock ... */ try { /* make an alias and make sure our file uploaded normally ... */ if ( UPLOAD_ERR_OK === ( $error = $_FILES['file']['error'] ) ) { /* hooray ... show the result and make another alias ... */ $template( 'UPLOAD_RESULT_1', ( $file = $_FILES['file'] ) ); /* this is not the end ... we need to confirm this file ... */ $checker = function( $file ) { /* you can deny a file if it too large ... */ if ( $file['size'] > 1234 ); /* you can also deny a file if you do not want it ... */ if ( ! in_array( $file['type'], [ 'image/jpeg', 'image/png' ] ) ); /* you can even specify the file name ... */ if ( 'Sunyanzi.zip' !== $file['name'] ); /* in a word ... do everything you want here ... */ return true; }; /* initialize the result array ... */ $result = [ 'from' => $file['tmp_name'], 'to' => $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . UPLOAD_PATH . DIRECTORY_SEPARATOR . $file['name'], 'status' => 'Failure' ]; /* is the file passed our examination ..? */ if ( true === $checker( $file ) ) { /* prepare store path ... */ if ( ! is_dir( UPLOAD_PATH ) ) mkdir( UPLOAD_PATH, 0755, true ); /* move file to the right place and keep its name ... */ if ( move_uploaded_file( $file['tmp_name'], UPLOAD_PATH . DIRECTORY_SEPARATOR . $file['name'] ) ) /* change status to success ... */ $result['status'] = 'Success'; } /* show the final result and we have done ... */ $template( 'UPLOAD_RESULT_2', $result ); /* something wrong with it ..? */ } else { /* failure ..? what happened ..? let us find it out ! */ $error_messages = [ UPLOAD_ERR_INI_SIZE => 'The uploaded file exceeds the upload_max_filesize ' . 'directive in php.ini.', UPLOAD_ERR_FORM_SIZE => 'The uploaded file exceeds the MAX_FILE_SIZE direct' . 'ive that was specified in the HTML form.', UPLOAD_ERR_PARTIAL => 'The uploaded file was only partially uploaded.', UPLOAD_ERR_NO_FILE => 'No file was uploaded.', UPLOAD_ERR_NO_TMP_DIR => 'Missing a temporary folder.', UPLOAD_ERR_CANT_WRITE => 'Failed to write file to disk.', UPLOAD_ERR_EXTENSION => 'A PHP extension stopped the file upload.' ]; /* throw the error out ! */ throw new Exception( isset( $error_messages[$error] ) ? $error_messages[$error] : '<a>本2文来*源gao($daima.com搞@代@#码(网</a><strong>搞gaodaima代码</strong>Unknown Error' ); } /* something wrong ..? */ } catch ( Exception $ex ) { /* show it out ... */ $template( 'UPLOAD_ERROR', $ex->getMessage() ); }}
没写什么花哨的东西 … 整个流程很简单 …
最开始是定义所有用到的 html 页面 … 然后是定义上传路径 … 然后就是上传的部分 …
看一下有哪里不明白可以再问 …
以及说 … 我的 $checker 只是用于演示 … 所以写的很简单 …
但事实上开放用户自由上传是一个 很危险 的行为 … 如果你确定要用 … 一定要再三确保安全 …
恩就是这样啦 …
搞代码网（gaodaima.com）提供的所有资源部分来自互联网，如果有侵犯您的版权或其他权益，请说明详细缘由并提供版权或权益证明然后发送到邮箱[email protected]，我们会在看到邮件的第一时间内为您处理，或直接联系QQ：872152909。本网站采用BY-NC-SA协议进行授权
转载请注明原文链接：html的input表单上传文件的方法
转载请注明原文链接：html的input表单上传文件的方法
