php的FTP环境出错-undefined function ftp_connect()
最近要开发一个在线推送系统，要用到FTP，从网上找了几个FTP的管理类都不管用，加了些调试代码后发现报以下这个错
undefined function ftp_connect()
才知道使自己的PHP环境没有支持FTP，于是重新编译了PHP，加了–enable-ftp，FTP调试成功了
网上查了资料发现Windows 中 PHP4 默认是支持 FTP 函数的，不需要加载 php_ftp.dll；
Linux 中，PHP4 如果要使用 FTP 函数，编译的时候 –enable-ftp 激活 FTP 函数
顺便也把自己找到的FTP类也贴上来，还算好用
class class_ftp
{
public $off;
public $conn_id;
function __construct($FTP_HOST,$FTP_PORT,$FTP_USER,$FTP_PASS){
ftp_connect($FTP_HOST,$FTP_PORT);
$this->conn_id = @ftp_connect($FTP_HOST,$FTP_PORT) or die(”FTP服务器连接失败”);
@ftp_login($this->conn_id,$FTP_USER,$FTP_PASS) or die(”FTP服务器登陆失败”);
@ftp_pasv($this->conn_id,1); }
function up_file($path,$newpath,$type=true){
if($type) $this->dir_mkdirs($newpath);
$this->off = @ftp_put($this->conn_id,$newpath,$path,FTP_BINARY);
if(!$this->off) echo “文件上传失败,请检查权限及路径是否正确！”;}
function move_file($path,$newpath,$type=true){
if($type) $this->dir_mkdirs($newpath);
$this->off = @ftp_rename($this->conn_id,$path,$newpath);
if(!$this->off) echo “文件移动失败,请检查权限及原路径是否正确！”;}
function copy_file($path,$newpath,$type=true){
$downpath = “c:/tmp.dat”;
$this->off = @ftp_get($this->conn_id,$downpath,$path,FTP_BINARY);
if(!$this->off) echo “文件复制失败,请检查权限及原路径是否正确！”;
$this->up_file($downpath,$newpath,$type);}
function del_file($path){
$this->off = @ftp_delete($this->conn_id,$path);
if(!$this->off) echo “文件删除失败,请检查权限及路径是否正确！”;}
function dir_mkdirs($path){
$path_arr = explode(’/',$path);
$file_name = array_pop($path_arr);
$path_div = count($path_arr);
foreach($path_arr as $val){
if(@ftp_chdir($this->conn_id,$val) == FALSE)
{
$tmp = @ftp_mkdir($this->conn_id,$val);
if($tmp == FALSE){
echo “目录创建失败,请检查权限及路径是否正确！”;
exit;
}
@ftp_chdir($this->conn_id,$val);
}
}
for($i=1;$i<=$path_div;$i++)
{
@ftp_cdup($this->conn_id);
}
}
function close()
{
@ftp_close($this->conn_id);
}
}
I relaly needed to find this info, thank God!