在PHP的使用中，它有着非常方便的操作设计，这次文章就给大家介绍下怎么使用PHP实现常用文件上传，相信这也是大多数人会遇到的问题，下面我们具体看看上传方法。

_path = $path;

$this->_allowType = array(

// images

'bmp' => 'image/x-ms-bmp',

'jpg' => 'image/jpeg',

'jpeg' => 'image/jpeg',

'gif' => 'image/gif',

'png' => 'image/png',

'tif' => 'image/tiff',

'tiff' => 'image/tiff',

'tga' => 'image/x-targa',

'psd' => 'image/vnd.adobe.photoshop',

//文本

'txt' => 'text/plain',

'php' => 'text/x-php',

'html' => 'text/html',

'htm' => 'text/html',

'js' => 'text/javascript',

'css' => 'text/css',

'rtf' => 'text/rtf',

'rtfd' => 'text/rtfd',

'py' => 'text/x-python',

'java' => 'text/x-java-source',

'rb' => 'text/x-ruby',

'sh' => 'text/x-shellscript',

'pl' => 'text/x-perl',

'sql' => 'text/x-sql',

//应用

'exe' => 'application/octet-stream',

'doc' => 'application/vnd.ms-word',

'docx' => 'application/vnd.ms-word',

'xls' => 'application/vnd.ms-excel',

'ppt' => 'application/vnd.ms-powerpoint',

'pps' => 'application/vnd.ms-powerpoint',

'pdf' => 'application/pdf',

'xml' => 'application/xml',

//音频

'mp3' => 'audio/mpeg',

'mid' => 'audio/midi',

'ogg' => 'audio/ogg',

'mp4a' => 'audio/mp4',

'wav' => 'audio/wav',

'wma' =&ggt; 'audio/x-ms-wma',

//视频

'avi' => 'video/x-msvideo',

'dv' => 'video/x-dv',

'mp4' => 'video/mp4',

'mpeg' => 'video/mpeg',

'mpg' => 'video/mpeg',

'mov' => 'video/quicktime',

'wm' => 'video/x-ms-wmv',

'flv' => 'video/x-flv',

'mkv' => 'video/x-matroska'

);

}

/**

* 上传函数

* @param string : 表单元素的name 值

* @return [type]

*/

public function upload( $txtName = '' )

{

$this->_file = $_FILES[$txtName];

if( $this->_file['error'] == 0){

$fileType = end( explode('.', $this->_file['name'] ));

$allowType = array();

foreach( $this->_allowType as $item=>$value ){

$allowType[] = $item;

}

if( !in_array($fileType, $allowType)){

die('上传的文件格式不正确！');

}else{

if(move_uploaded_file($this->file['tmp_name'], ($this->path).$this->file['name']))

{

echo "";

}

else

{

echo "";

}

}

}else{

//没有正确上传

switch ($this->file['error']){

case 1:

die('文件大小超过系统限制。');

break;

case 2:

die('文件大小超过预定义限制。');

break;

case 3:

die('文件为完全上传。');

break;

case 4:

die('未上传任何文件。');

break;

default:

die('上传出错');

break;

}

}

}

//end upload

}