PHP program to download file tree from ftp server to local computer_PHP tutorial

Copy code The code is as follows:

/*
When using ftp_nlist() correspondence, the returned array value will have two types : Varies from server to server
a: Individual file name
b: File name containing directory.
If misappropriated, please change this.
*/
function download_file($dir,$fc,$_FILE_)
{
$fn=ftp_nlist($fc,".");//column The file name of the directory (including subdirectories) is stored in the array
$size=sizeof($fn);
$dir=($dir=="")?$dir:('/' .$dir);
$_FILE_=$_FILE_.$dir;
echo $_FILE_."
";
for($i=0;$i<$size;$ i++)
{
if(ereg('^[a-zA-Z0-9_]+',$fn[$i])) //Extract files and directories, exclude...,... Directory
{
if(ereg('^[a-zA-Z0-9_]+([a-zA-Z0-9-]*.*)(.+)',$fn[$ i])) //Download directly if it is a file
{
if(ftp_get($fc,$fn[$i],$fn[$i],FTP_BINARY))
{
echo "
Download".getcwd()."/".$fn[$i]."Successful
";
}
else
{
echo "
Download".getcwd()."/".$fn[$i]."Failed
";
}
}//File download ends
else //"It is a directory, enter the directory, and then read the file";
{
if(!file_exists($fn[$i]))
mkdir($fn[$i], 0700);//If the directory does not exist on the local machine, create one
if(ftp_chdir($fc,$fn[$i]))
chdir($fn[$i]);
echo "The current directory is: ".getcwd()."
";// Better see the current directory
download_file($fn[$i],$fc,$_FILE_);/ /Recursively enter the directory to download files
}
}//Extract files, end of directory
}//End of for loop
ftp_cdup($fc);//ftp server returns to the upper directory
chdir(dirname($_FILE_));
}//download——file() function ends
$_FILE_="local machine absolute address";//For example, c:/download, don’t do this c:/download /
$hostname="Server name";
$loginname="User name";
$password="User password";
$fc=ftp_connect($hostname,"21") or die("Couldn't connect to $hostname");
$fc_rw=ftp_login($fc,$loginname,$password);
ftp_set_option($fc,FTP_TIMEOUT_SEC,100000);//Set the timeout
$dir="";chdir($_FILE_);//Enter the local machine's absolute address directory
download_file($dir,$fc,$_FILE_);
ftp_quit($fc);
/ /Program to download file tree from server
?>

I hope it can be helpful to everyone, thank you

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