Is there a file in the link php-CodePudding

Please tell me how I can check for an error in the fopen function, namely, whether the file is located at this link. The link may or may not work.

$url = "https://test.com/file/";

if (fopen($url, "r")) {
    file_put_contents("test.mp3", fopen($url, "r")); 
}
else {
}

So for some reason it doesn't work.

CodePudding user response：

Why not simply use try catch ?

try {
  file_put_contents("test.mp3", fopen($url, "r"));
} catch(Exception $e) {
  echo($e->getMessage()); // Whatever handling you want if the fopen fails
}

CodePudding user response：

You have two solutions, or you will wrap it in a try - catch block or you can previously check if the file is available via curl

$ch = curl_init("https://test.com/file/");

curl_setopt($ch, CURLOPT_NOBODY, true);
curl_exec($ch);
$retcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

Check the retcode, if is 200 the file is there and you can proceed, otherwise you need to handle it