Remote File download code _php tutorial

Remote File download code here to provide you with a remote file download code, we can put the remote file in PHP to download the local directory, the following is a download remote server file code class.

Remote File download code
Here to provide you with a remote file download code, we can take the remote file with PHP tutorial download to the local designated directory, below is a download remote server file code class.

Class Download
{
var $url;//Remote file address

var $file _name = "hdwiki.zip";//File name downloaded

var $save _path = "./www.bkjia.c0m";//download to local file path

var $localfile;//the path and name of the downloaded to local file

var $warning;//warning message

var $redown =0;//whether to re-download

/* Initialize */
function SetUrl ($url)
{
if (!empty ($url)) $this->url = $url;
}

function Setfilename ($file _name)
{
if (!empty ($file _name)) $this->file_name = $file _name;
}

function Setsavepath ($save _path)
{
if (!empty ($save _path)) $this->save_path = $save _path;
}

function Setredown ($redown)
{
if (!empty ($redown)) $this->redown = $redown;
}

function Download ($url, $redown = 0, $save _path = 0, $file _name = 0)
{
$this->seturl ($url);
$this->setfilename ($file _name);
$this->setsavepath ($save _path);
$this->setredown ($redown);
if (!file_exists ($this->save_path))
{
$dir = Explode ("/", $this->save_path);
foreach ($dir as $p)
mkdir ($p);
}
}

/* Check URL legitimacy function */
function Checkurl () {
Return Preg_match ("/^ (HTTP|FTP) (://) ([a-za-z0-9-_]+[./]+[w-_/]+.*) +$/i", $this->url);
}

Download files to Local

function DownloadFile ()
{
Detection variables

$this->localfile = $this->save_path. " /". $this->file_name;
if ($this->url = = "" | | $this->localfile = = "") {
$this->warning = "ERROR: variable is set incorrectly.";
return $this->warning;
}

if (! $this->checkurl ()) {
$this->warning = "Error:url". $this->url. "Illegal.";
return $this->warning;
}

if (file_exists ($this->localfile)) {
if ($this->redown)
{
Unlink ($this->localfile);
}
Else
{
$this->warning = "Warning: Upgrade file". $this->localfile. "Already exists! Re-download ";
return $this->warning;
Exit ("Error: Local file".) $this->localfile. "Already exists, please remove or rename after re-run this program.");

}
}

Open a remote file

$fp = fopen ($this->url, "RB");
if (! $fp) {
$this->warning = "Error: Open remote file". $this->url. "Failure.";
return $this->warning;
}

Open Local File

$SP = fopen ($this->localfile, "WB");
if (! $sp) {
$this->warning = "Error: Open local file". $this->localfile. "Failure.";
return $this->warning;
}

Download remote Files

echo "Downloading remote files, please wait";

while (!feof ($fp)) {
$tmpfile. = Fread ($fp, 1024);
echo strlen ($tmpfile);

}
Save file to Local

Fwrite ($SP, $tmpfile);
Fclose ($FP);
Fclose ($SP);

if ($this->redown)
$this->warning = "Success: Download file again". $this->file_name. "Success";
Else
$this->warning = "Success: Download File". $this->file_name. "Success";

return $this->warning;
}
}

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