check if an URL exists in PHP

Question

Hello,

How do I check if an URL exists and not 404 in PHP

Thanks Jean

Answer 1

Here:

$file = 'http://www.domain.com/somefile.jpg';
$file_headers = @get_headers($file);
if($file_headers[0] == 'HTTP/1.1 404 Not Found') {
    $exists = false;
}
else {
    $exists = true;
}

From here: http://www.php.net/manual/en/function.file-exists.php#75064

...and right below the above post, there's a curl solution:

function url_exists($url) {
    if (!$fp = curl_init($url)) return false;
    return true;
}

Answer 2

$f1 = 'http://www.sample.com/file.jpg'; $file_headers = @get_headers($f1); if($file_headers[0] == 'HTTP/1.1 404 Not Found') { $exists = false; } else { $exists = true; }

Answer 3

Careful, get_headers("http://www.domain.com/somefile.jpg") can be very slow (1 minute)