Posted in PHP onJuly 21, 2010
表单中file对象,比如说$_FILES['doc'],$path为保存的路径,$type为限制上传的类型(他是一个数组,比如说限制上传doc和docx和格式,那这个参数可以填array(“doc”,”.docx”),而且扩展名前有无”.”不作要求)。
<?php function upload($file,$path,$type){ $state = array(); $state['error'] = "true"; $alltype = ""; // 所有可以上传的类型,用"/"连接起来 $path = trim($path); //为$path末尾加上"/" if(strlen(strrchr($path,‘/‘)) <= 1){ $path .= "/"; } //为类型加上开头“.” //将所有类型合成字符串,用"/"连接起来<span id="more-78"></span> foreach($type as $key=>$typeone){ $type[$key] = $typeone = trim($typeone); if(strlen(strchr($typeone,".")) != strlen($typeone)){ $type[$key] = ".".$typeone;} $alltype .= $typeone.‘/‘; } $alltype = substr($alltype,0,strlen($alltype)-1); //去掉最后的“/” if(empty($file['name'])){ $state['error'] = "没有上传{$alltype}类型文件!"; $state['errorid'] = 8; return $state; } else { if (!$file['error']) { $state['name'] = $file['name']; $state['type'] = strrchr($state['name'],‘.‘); if(in_array($state['type'],$type)){ $time = date("U"); $state['upname'] = $time.rand(1000,9999).$state['type']; //文件命名 if(copy($file['tmp_name'],$path.$state['upname'])){ $state['time'] = date("U"); //上传的时间 $state['error'] = false; return $state; } else { switch($file(‘error‘)){ case 1: $state['error'] = $state['name']."上传失败,文件大小超出了服务器的空间大小!";$state['errorid'] = 1;return $state; case 2: $state['error'] = $state['name']."上传失败,要上传的文件大小超出浏览器限制!";$state['errorid'] = 2;return $state; case 3: $state['error'] = $state['name']."上传失败,文件仅部分被上传!";$state['errorid'] = 3;return $state; case 4: $state['error'] = $state['name']."上传失败,没有找到要上传的文件!";$state['errorid'] = 4;return $state; case 5: $state['error'] = $state['name']."上传失败,服务器临时文件夹丢失!";$state['errorid'] = 5;return $state; case 6: $state['error'] = $state['name']."上传失败,文件写入到临时文件夹出错!";$state['errorid'] = 6;return $state; default: $state['error'] = $state['name']."上传失败,位置错误!";$state['errorid'] = 10;return $state; } } } else { $state['error'] = $state['name']."上传失败!不符合所要上传的文件类型!({$alltype})"; $state['errorid'] = 10; return $state; } } } ?>
返回值为一数组
$key value
error 错误详情
errorid 错误id(出现错误才有值)
type 文件扩展名(扩展名前带“.”)
upname 上传的文件名
time 上传的时间(从 Unix 纪元(1970-01-01 00:00)开始至今的秒数)
错误类型
errorid error
false //上传成功
1 上传失败,文件大小超出了服务器的空间大小!
2 上传失败,要上传的文件大小超出浏览器限制!
3 上传失败,文件仅部分被上传!
4 上传失败,没有找到要上传的文件!
5 上传失败,服务器临时文件夹丢失!
6 上传失败,文件写入到临时文件夹出错!
8 没有上传该类型文件! //表单中file对象为空
10 上传失败,位置错误!
php上传文件的增强函数
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