$fd = fopen("aaa.txt", "r");
$i = 0;
$buffer = "";
while ($tmp = fgets($fd, 4096)) {
$i++;
if ($i <> 2){
$buffer .=$tmp;
}
}
fclose($fd);
$i = 0;
$buffer = "";
while ($tmp = fgets($fd, 4096)) {
$i++;
if ($i <> 2){
$buffer .=$tmp;
}
}
fclose($fd);
unset($data[1]);
$str = implode("\r", $data);
.....$str写回文件
$data = explode("\r", $data);
unset($data[1]);
$str = implode("\r", $data);
.....$str写回文件
$pos = strpos("\r", $data);
$pos2 = strpos("\r", $data, $pos);
$data = substr($data , 0, $pos).substr($data, $pos2+1);
unset($data[1]);
$str = implode("\r", $data);
.....$str写回文件
$ar = file($filename); //读取文件到数组
unset($ar,1); //删除第2行$fp = fopen($filename,"w");
fwrite($fp,join("",$ar));
fclose($fp);