<?php
header('content-type:text/html;charset=utf-8');
$file ="1.txt";
if(!file_exists($file)){
die('文件不存在');
} //检测文件是否存在
$str = file_get_contents($file);
// $str =iconv('gb2312', 'utf-8', $str);
$encoding =mb_detect_encoding($str,$array = array("ASCII","utf-8","GB2312","GBK","BIG5"));
if($encoding !='utf-8'){
$str =mb_convert_encoding($str, 'utf-8','gb2312');
}
$str =nl2br($str);
echo $str;
11111
<?PHP
$file ="student.csv";
if(!file_exists($file)) die('文件不存在');
//打开文件
$fp =@fopen($file,'r');
if(false ===$fp) die('打开文件失败');
fgets:从文件中读取一行 utf8编码格式
while($str =fgets($fp)){
$encoding =mb_detect_encoding($str,array("ASCII","utf-8","GB2312","GBK","BIG5"));
if($encoding !='utf-8'){
$str =mb_convert_encoding($str,'utf-8',$encoding);}
// echo $str .'<br>';
//关闭文件
fclose($fp);