<?php //$fileInfo=$_FILES[‘myFile‘]; /** * @param $fileInfo string 上传的文件参数 name * @param uploadPath string 文件上传的路径，默认的为uploads * @param allowExt array 运行文件上传的类型 默认的为:‘jpeg‘,‘jpg‘,‘gif‘,‘png‘ * @param maxSize int 允许文件上传的最大限制，默认为2兆 */ function uploadFile($fileInfo,$uploadPath = ‘uploads‘,$flag=true,$allowExt=array(‘jpeg‘,‘jpg‘,‘gif‘,‘png‘),$maxSize = 2097152){ // 判断错误号 if ($fileInfo [‘error‘] > 0) { switch ($fileInfo [‘error‘]) { case 1 : $mes = ‘上传文件超过了PHP配置文件中upload_max_filesize选项的值‘; break; case 2 : $mes = ‘超过了表单MAX_FILE_SIZE限制的大小‘; break; case 3 : $mes = ‘文件部分被上传‘; break; case 4 : $mes = ‘没有选择上传文件‘; break; case 6 : $mes = ‘没有找到临时目录‘; break; case 7 : case 8 : $mes = ‘系统错误‘; break; } echo ( $mes ); return false; } $ext = pathinfo ( $fileInfo [‘name‘], PATHINFO_EXTENSION ); // $allowExt = array ( // ‘jpeg‘, // ‘jpg‘, // ‘png‘, // ‘gif‘ // ); if(!is_array($allowExt)){ exit(‘系统错误‘); } // 检测上传文件的类型 if (! in_array ( $ext, $allowExt )) { exit ( ‘非法文件类型‘ ); } //$maxSize = 2097152; // 2M // 检测上传文件大小是否符合规范 if ($fileInfo [‘size‘] > $maxSize) { exit ( ‘上传文件过大‘ ); } //检测图片是否为真实的图片类型 //$flag=true; if($flag){ if(!getimagesize($fileInfo[‘tmp_name‘])){ exit(‘不是真实图片类型‘); } } // 检测文件是否是通过HTTP POST方式上传上来 if (! is_uploaded_file ( $fileInfo [‘tmp_name‘] )) { exit ( ‘文件不是通过HTTP POST方式上传上来的‘ ); } //$uploadPath = ‘uploads‘; if (! file_exists ( $uploadPath )) { mkdir ( $uploadPath, 0777, true ); chmod ( $uploadPath, 0777 ); } $uniName = md5 ( uniqid ( microtime ( true ), true ) ) . ‘.‘ . $ext; $destination = $uploadPath . ‘/‘ . $uniName; if (! @move_uploaded_file ( $fileInfo [‘tmp_name‘], $destination )) { exit ( ‘文件移动失败‘ ); } //echo ‘文件上传成功‘; // return array( // ‘newName‘=>$destination, // ‘size‘=>$fileInfo[‘size‘], // ‘type‘=>$fileInfo[‘type‘] // ); return $destination; }
函数的调用如下doAction.php：
<?php header(‘content-type:text/html;charset=utf-8‘); include_once ‘upload.func.php‘; $fileInfo=$_FILES[‘myFile‘]; // $newName=uploadFile($fileInfo); // echo $newName; // $newName=uploadFile($fileInfo,‘imooc‘); // echo $newName; //$allowExt=‘txt‘; $allowExt=array(‘jpeg‘,‘jpg‘,‘png‘,‘gif‘,‘html‘,‘txt‘); $newName=uploadFile($fileInfo,‘imooc‘,false,$allowExt); echo $newName;
前段代码如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Insert title here</title> </head> <body> <form action="doAction3.php" method="post" enctype="multipart/form-data"> <!-- <input type="hidden" name="MAX_FILE_SIZE" value=‘176942‘ /> --> 请选择您要上传的文件：<input type="file" name=‘myFile‘ /> <!-- <input type="file" name="myFile" accept="image/jpeg,image/gif,image/png"/><br /> --> <input type="submit" value="上传文件" /> </form> </body> </html>
原文：http://www.cnblogs.com/xs-yqz/p/5153666.html