3 solutions to get remote file size in PHP_PHP Tutorial

1. Use file_get_contents()

Copy the code The code is as follows:

$file = file_get_contents($url);
echo strlen($file);
?>

2. Use get_headers()

Copy code The code is as follows:

$header_array = get_headers($url, true);
$size = $header_array['Content-Length'];
echo $size;
?>

PS:
required Open allow_url_fopen!
If it is not opened, it will be displayed
Warning: get_headers() [function.get-headers]: URL file-access is disabled in the server configuration
3. Use fsockopen ()

Copy code The code is as follows:

function get_file_size($url) {
$url = parse_url($url);

if (empty($url['host'])) {
return false;
}

$ url['port'] = empty($url['post']) ? 80 : $url['post'];
$url['path'] = empty($url['path']) ? '/' : $url['path'];

$fp = fsockopen($url['host'], $url['port'], $error);

if ($fp) {
                                                                                                                          host']. "rnrn");

while (!feof($fp)) {
$str = fgets($fp);
if (trim($str) == ' ') {
break;
}elseif(preg_match('/Content-Length:(.*)/si', $str, $arr)) {
return trim($arr[1]) ;
                                                                               ; 🎜> }
?>





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TechArticle1. Use file_get_contents() to copy the code. The code is as follows: ?php $file = file_get_contents($url); echo strlen ($file); ? 2. Use get_headers() to copy the code. The code is as follows: ?php $header_...