What are common reasons for receiving 404 and 403 responses when using php fsockopen and fgets?

When using php fsockopen and fgets, common reasons for receiving 404 and 403 responses include incorrect URL paths, permission issues, or server-side restrictions. To solve this issue, double-check the URL path, ensure proper permissions are set, and verify that the server allows the requested action. 

$fp = fsockopen("example.com", 80, $errno, $errstr, 30);
if (!$fp) {
    echo "Error: $errstr ($errno)\n";
} else {
    $out = "GET /path/to/resource HTTP/1.1\r\n";
    $out .= "Host: example.com\r\n";
    $out .= "Connection: Close\r\n\r\n";
    fwrite($fp, $out);
    
    while (!feof($fp)) {
        echo fgets($fp, 128);
    }
    
    fclose($fp);
}

Keywords

PHP fsockopen fgets 404 response 403 response

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