This simply copy a file from a url, useful when transferring a huge single zip file

copy-file-from-url.php

<?php

$filename = "sample_filename.zip";

$file_to_be_copied = 'http://url_of_source.com/'.$filename;

$local_file_created = $_SERVER['DOCUMENT_ROOT'] . '/' . $filename;

if ( copy($file_to_be_copied, $local_file_created) ) {
    echo 'Copy successfully in: ' .$local_file_created;
}else{
    echo "Copy failed.";
}

/* 
    Don't forget to delete this file in your server as it can do potential damage
*/

?>