php的文件读取和写入似乎对未知格式的文件不管用

回复讨论(解决方案)

中文问题吧

$str="宋1.txt";$str=iconv("utf-8", "GBK", $str);//注释掉就会失败$fp = fopen($str, "a");if(fwrite($fp,"losasds")!==false) echo "ok";else echo "fail";fclose($fp);

二进制文件要用二进制方式打开，即模式中要有 b

中文问题吧

$str="宋1.txt";$str=iconv("utf-8", "GBK", $str);//注释掉就会失败$fp = fopen($str, "a");if(fwrite($fp,"losasds")!==false) echo "ok";else echo "fail";fclose($fp);