I need to know h开发者_如何学Goow to get the status of the copy()
function in PHP.
I am using this function to download a remote file, and I want a progress bar for this program.
You'll need to write your own copy function. First check the file size through a HTTP HEAD request, for example with this solution:
http://php.net/manual/en/function.filesize.php#92462
Then do this to fetch the file:
$remote = fopen('remote-file', 'r');
$local = fopen('local-file', 'w');
$read_bytes = 0;
while(!feof($remote)) {
$buffer = fread($remote, 2048);
fwrite($local, $buffer);
$read_bytes += 2048;
//Use $filesize as calculated earlier to get the progress percentage
$progress = min(100, 100 * $read_bytes / $filesize);
//you'll need some way to send $progress to the browser.
//maybe save it to a file and then let an Ajax call check it?
}
fclose($remote);
fclose($local);
You can't get a progress bar for a copy()
call to my knowledge.
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