如何在不使用@的情况下抑制get_headers（）中的错误

Question

get_headers() throws a warning if the URL being checked is invalid. E.g.,

get_headers('http://nonexistingrubbish-url.com');

Warning: get_headers(): php_network_getaddresses: getaddrinfo failed: No such host is known

Is it possible to suppress this error withou using @?

My main goal is to check whether a URL exist or not but I don't want to use the @ suppressor.

Answer 1

You can check with curl and it's not returning any warnings. If you use 'CURLOPT_NOBODY' then it will not try to download whole page.

<?php
$url = "http://nonexistingrubbish-url.com";
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_NOBODY, true);
$result = curl_exec($curl);
if ($result !== false) {
    $statusCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
    if ($statusCode == 404) {
        echo "URL Not Exists";
    } else {
        echo "URL Exists";
    }
} else {
    echo "URL not Exists";
}