php下载脚本错误
我使用此功能制作下载链接:php下载脚本错误,php,download,Php,Download,我使用此功能制作下载链接: <?php function downloadFile($fileLocation,$fileName,$maxSpeed = 13,$doStream = false){ if (connection_status()!=0) return(false); $extension = strtolower(end(explode('.',$fileName))); /* List of File Types */
<?php
function downloadFile($fileLocation,$fileName,$maxSpeed = 13,$doStream =
false){
if (connection_status()!=0) return(false);
$extension = strtolower(end(explode('.',$fileName)));
/* List of File Types */
$fileTypes['swf'] = 'application/x-shockwave-flash';
$fileTypes['pdf'] = 'application/pdf';
$fileTypes['exe'] = 'application/octet-stream';
$fileTypes['zip'] = 'application/zip';
$fileTypes['doc'] = 'application/msword';
$fileTypes['xls'] = 'application/vnd.ms-excel';
$fileTypes['ppt'] = 'application/vnd.ms-powerpoint';
$fileTypes['gif'] = 'image/gif';
$fileTypes['png'] = 'image/png';
$fileTypes['jpeg'] = 'image/jpg';
$fileTypes['jpg'] = 'image/jpg';
$fileTypes['rar'] = 'application/rar';
$fileTypes['ra'] = 'audio/x-pn-realaudio';
$fileTypes['ram'] = 'audio/x-pn-realaudio';
$fileTypes['ogg'] = 'audio/x-pn-realaudio';
$fileTypes['wav'] = 'video/x-msvideo';
$fileTypes['wmv'] = 'video/x-msvideo';
$fileTypes['avi'] = 'video/x-msvideo';
$fileTypes['asf'] = 'video/x-msvideo';
$fileTypes['divx'] = 'video/x-msvideo';
$fileTypes['mp3'] = 'audio/mpeg';
$fileTypes['mp4'] = 'audio/mpeg';
$fileTypes['mpeg'] = 'video/mpeg';
$fileTypes['mpg'] = 'video/mpeg';
$fileTypes['mpe'] = 'video/mpeg';
$fileTypes['mov'] = 'video/quicktime';
$fileTypes['swf'] = 'video/quicktime';
$fileTypes['3gp'] = 'video/quicktime';
$fileTypes['m4a'] = 'video/quicktime';
$fileTypes['aac'] = 'video/quicktime';
$fileTypes['m3u'] = 'video/quicktime';
$contentType = $fileTypes[$extension];
header("Cache-Control: public");
header("Content-Transfer-Encoding: binary\n");
header("Content-Type: $contentType");
$contentDisposition = 'attachment';
if($doStream == true){
/* extensions to stream */
$array_listen = array('mp3','m3u','m4a','mid','ogg','ra','ram','wm',
'wav','wma','aac','3gp','avi','mov','mp4','mpeg','mpg','swf','wmv','divx','asf');
if(in_array($extension,$array_listen)){
$contentDisposition = 'inline';
}
}
if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) {
$fileName= preg_replace('/\./', '%2e', $fileName,
substr_count($fileName, '.') - 1);
header("Content-Disposition: $contentDisposition; filename=".$fileName);
} else {
header("Content-Disposition: $contentDisposition; filename=".$fileName);
}
header("Accept-Ranges: bytes");
$range = 0;
$size = filesize($fileLocation);
if(isset($_SERVER['HTTP_RANGE'])) {
list($a, $range)=explode("=",$_SERVER['HTTP_RANGE']);
str_replace($range, "-", $range);
$size2=$size-1;
$new_length=$size-$range;
header("HTTP/1.1 206 Partial Content");
header("Content-Length: $new_length");
header("Content-Range: bytes $range$size2/$size");
} else {
$size2=$size-1;
header("Content-Range: bytes 0-$size2/$size");
header("Content-Length: ".$size);
}
if ($size == 0 ) { die('Zero byte file! Aborting download');}
set_magic_quotes_runtime(0);
$fp=fopen("$fileLocation","rb");
fseek($fp,$range);
while(!feof($fp) and (connection_status()==0))
{
set_time_limit(0);
print(fread($fp,1024*$maxSpeed));
flush();
ob_flush();
sleep(1);
}
fclose($fp);
return((connection_status()==0) and !connection_aborted());
}
/* Implementation */
$filename="shopfile.zip";
$location="file/";
downloadFile($location,$filename,900,false);
?>
但当它运行时,会得到以下信息:
严格标准:第16行的/home/behzadfar/public_html/shopfile/download.php中只能通过引用传递变量
警告:无法修改标题信息-标题已由第57行的/home/behzadfar/public_html/shopfile/download.php:16)中的/home/behzadfar/public_html/shopfile/download.php发送
如何解决此问题?要解决此问题,请执行以下操作:
必须将实际变量传递给end()
,而不是返回数组的函数。因此:
$pieces = explode('.',$fileName);
$extension = strtolower(end($pieces));
对于end
,这在中进行了说明
摘录
此数组是通过引用传递的,因为它是由函数修改的。这意味着您必须传递一个实变量,而不是返回数组的函数,因为只能通过引用传递实变量
不含中间变量的解决方案
如果不想使用中间变量,请使用而不是end
:
$extension = strtolower(array_pop(explode('.',$fileName)));
出现与已发送的标题相关的错误是因为PHP必须在页面(已交付内容)上向您显示错误,因此它无法修改标题(一旦开始交付内容,您就无法修改HTTP标题)。修复strict standards错误将修复标头错误。错误来自以下行:
$extension = strtolower(end(explode('.',$fileName)));
end()
的参数通过引用传递(请参阅:mixed end(数组和$array)
因此,您必须将代码更改为:
$array = explode('.',$fileName);
$extension = strtolower(end($array));
此外,这将是一个更清洁的解决方案:
$extension = pathinfo($fileName, PATHINFO_EXTENSION);
如果这个函数已经是标准php函数的一部分,为什么不自己实现它呢
您的脚本是否以4或任何空格开头???哪一行是原始脚本的第16行?ooooohh:-)您的脚本是否以4或任何空格开头??标题错误是由于严格的标准警告,而不是因为脚本中的任何其他内容。。。
$finfo = new finfo(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension
$contentType = $finfo->file($fileLocation.$filename) ;