Download files via php

[Bry]

Hi sorry if this is in the wrong forum but i couldnt see any other suitable ones and google has given me no help.

I regulary have to upload files to my website via ftp. These are not very large files say around 5-10mb most time but it does get tedious and slow.

I was wondering if anyone knew of a script where u can enter a url to an existing file (e.g. a zip file) and the script will download it to a certain directory on the webserver?

[drew010]

i wrote this code a while back and it lets you enter a url or multiple urls (1 per line) and it grabs the contents and saves them to the same folder the script is running in under the same filename they are on the remote server. i didnt fully test it but i grabbed a few files and it seemed to work fine. it is binary safe or works for ascii text. here is the source code, let me know if it works out for you.

edit: scroll down for updated code

[Bry]

cheers v much that works great!

[drew010]

thanks..
while you were posting i added one additional line to the top, the ini_set("max_execution_time", 0); in case you try to download several large files, the default timeout is 30 seconds so you may get an error saying maximum execution time exceeded so that would prevent that from happening.

[Bry]

ta trying that now.

just a small question what would happen if the file is already there? Would it get overwrote/would it skip the file (if doing mass) or would the whole thing fail?

[BuzzLY]

try it and see.

[drew010]

yes it just overwrites the file. i suppose i should add an option where you can either have it numerate the files or overwrite them. ill try to get around to it in the next while and post the update.

[drew010]

heres the new version. has the option of overwriting existing files or numerating them.
i also made the output more colorful to help identify the activities of the script.

<?php

define("OVERWRITE_EXISTING", 0);
//if set to 1, files with the same name will be overwritten,
//if set to 0, the files will be numerated.



//no more config needed
error_reporting(E_PARSE | E_ERROR);
ini_set("track_errors", 1);
ini_set("max_execution_time", 0);

if($_POST) {
	//IE OB Fix - Output 256 bytes before it will display the page and listen to flush().
	echo "<!--\n";
	for($i = 0; $i < 256; $i++) {
		echo "x";
	}
	echo "\n-->\n\n";

$_POST['urls'] = str_replace("\r\n", "\n", $_POST['urls']);

$each = explode("\n", $_POST['urls']);

foreach($each as $url) {
	$url = trim($url);

	echo "<font style=\"color: #0000ff; font-weight: bold;\">Attempting to open $url</font><br />\n\n";
	flush();

	$data = @file_get_contents($url);
	if($data === FALSE) {
		echo "<font style=\"color: #ff0000; font-weight: bold;\">Could not retrieve data from $url.  Reason: $php_errormsg</font><br /><br />\n\n";
		flush();
		continue;
	}

	$filename = strrchr($url, "/");

	if($filename === FALSE || $filename == "") {
		$host = strrchr($url, "://");
		$host = str_replace("://", "", $host);
		$host = str_replace("/", "_", $host);
		$filename = "index_${host}.html";
	}

	$filename = str_replace("/", "", $filename);

	if (file_exists($filename)) {
		echo "<font style=\"color: #0000ff; font-style: italic;\">File $filename exists.</font><br />\n";
		flush();
		if (!OVERWRITE_EXISTING) {
			echo "<font style=\"color: #0000ff; font-style: italic;\">Overwrite set to 0, finding next available filename.</font><br />\n";
			flush();
			$i = 1;
			$fn = $filename;
			$filename = $fn . ".$i";
			while (file_exists($filename)) {
				$filename = $fn . ".$i";
				$i++;
			}
			echo "<font style=\"color: #0000ff; font-style: italic;\">Found next filename.  Will use $filename.</font><br />\n";
			flush();
		} else {
			echo "<font style=\"color: #ff0000; font-weight: bold;\">Overwrite set to 1, will overwrite $filename.</font><br />\n";
		}
	}

	$fp = @fopen("./" . $filename, "w+");
	if(!$fp) {
		echo "<font style=\"color: #ff0000; font-weight: bold;\">Could not write data to file $filename.  Reason: $php_errormsg.</font><br /><br />\n\n";
		flush();
		continue;
	}

	fwrite($fp, $data);
	fclose($fp);

	echo "<font style=\"color: #0000ff; font-weight: bold;\">Successfully wrote " . number_format(strlen($data)) . " bytes to $filename.</font><br /><br />\n\n";
	flush();
}
} else {
	?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
	<title>Remote File Grabber - Written by Drew Phillips (drew-phillips.com)</title>
</head>
<body>

<font size=2><b>Remote File Grabber</b></font><br /><br />

<form method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<textarea name="urls" rows=15 cols=45></textarea><br /><br />
<input type="Submit" value="Retrieve Pages"><br />

<?php
}
?>