curl_errno 6

Question

$data_struct = array(); 

$data_struct[]['opts'] = array(CURLOPT_URL => 'http://www.yahoo.com/', CURLOPT_RETURNTRANSFER => true); 
$data_struct[]['opts'] = array(CURLOPT_URL => 'http://www.google.com/', CURLOPT_RETURNTRANSFER => true); 
$data_struct[]['opts'] = array(CURLOPT_URL => 'http://404.php.net/', CURLOPT_RETURNTRANSFER => true); 

//create the multiple cURL handle 
$mh = curl_multi_init(); 

// create and add handles to data structure 
foreach ($data_struct as $i => $data){ 
    $data_struct[$i]['handle'] = curl_init(); 
    curl_setopt_array($data_struct[$i]['handle'], $data_struct[$i]['opts']); 
    curl_multi_add_handle($mh, $data_struct[$i]['handle']); 
} 

$active = null; 
//execute the handles 
do { 
    $mrc = curl_multi_exec($mh, $active);  

} while ($mrc == CURLM_CALL_MULTI_PERFORM); 

while ($active && $mrc == CURLM_OK) { 
    if (curl_multi_select($mh) != -1) { 
     do { 
      $mrc = curl_multi_exec($mh, $active); 
     } while ($mrc == CURLM_CALL_MULTI_PERFORM); 
    } 
}  

foreach ($data_struct as $i => $data){ 
    $row = array(); 
    $row['httpcode'] = curl_getinfo($data_struct[$i]['handle'] , CURLINFO_HTTP_CODE); 
    $row['url'] = $data['opts'][CURLOPT_URL]; 
    $row['error'] = curl_error($data_struct[$i]['handle']); 
    $row['errorno'] = curl_errno($data_struct[$i]['handle']); 
    print_r($row); 
    echo "\n";  

    curl_multi_remove_handle($mh, $data_struct[$i]['handle']); 
    curl_close($data_struct[$i]['handle']); 
} 

出力マルチカールcurl_errorはエラーメッセージを返すという事実にもかかわらずcurl_errno機能と0を返し、同じ状況で

Array 
(
    [httpcode] => 302 
    [url] => http://www.yahoo.com/ 
    [error] => 
    [errorno] => 0 
) 

Array 
(
    [httpcode] => 302 
    [url] => http://www.google.com/ 
    [error] => 
    [errorno] => 0 
) 

Array 
(
    [httpcode] => 0 
    [url] => http://404.php.net/ 
    [error] => Couldn't resolve host '404.php.net' 
    [errorno] => 0 
) 

の代わりに0を返します。

Answer 1

ここにPHP 5.2.x or greater（新しい方が良い）がある場合は、この場合はcurl_multi_info_read()を使用することをお勧めします。 （参照：curl_multi_info_read() docsを。）

あなたはあなたのコードの終わり近くにそれを置くことによってcurl_multi_info_read()の出力を見ることができます（あなたのecho "\n";行の後、）このように：表示された

var_dump(curl_multi_info_read($mh)); 

が正しいエラー番号を与えること（具体的には、"result" => 6）：

Array 
(
    [httpcode] => 0 
    [url] => http://404.php.net/ 
    [error] => Couldn't resolve host '404.php.net' 
    [errorno] => 0 
) 

array(3) { 
    ["msg"]=> 
    int(1) 
    ["result"]=> 
    int(6) 
    ["handle"]=> 
    resource(7) of type (curl) 
} 

注：PHP 5.2.8インストール上で試験しました。

Answer 2

コード配列：

$codes_texts = [ 
    0 => 'OK', 
    1 => 'UNSUPPORTED_PROTOCOL', 
    2 => 'FAILED_INIT', 
    3 => 'URL_MALFORMAT', 
    4 => 'URL_MALFORMAT_USER', 
    5 => 'COULDNT_RESOLVE_PROXY', 
    6 => 'COULDNT_RESOLVE_HOST', 
    7 => 'COULDNT_CONNECT', 
    8 => 'FTP_WEIRD_SERVER_REPLY', 
    9 => 'FTP_ACCESS_DENIED', 
    10 => 'FTP_USER_PASSWORD_INCORRECT', 
    11 => 'FTP_WEIRD_PASS_REPLY', 
    12 => 'FTP_WEIRD_USER_REPLY', 
    13 => 'FTP_WEIRD_PASV_REPLY', 
    14 => 'FTP_WEIRD_227_FORMAT', 
    15 => 'FTP_CANT_GET_HOST', 
    16 => 'FTP_CANT_RECONNECT', 
    17 => 'FTP_COULDNT_SET_BINARY', 
    18 => 'PARTIAL_FILE', 
    19 => 'FTP_COULDNT_RETR_FILE', 
    20 => 'FTP_WRITE_ERROR', 
    21 => 'FTP_QUOTE_ERROR', 
    22 => 'HTTP_NOT_FOUND', 
    23 => 'WRITE_ERROR', 
    24 => 'MALFORMAT_USER', 
    25 => 'FTP_COULDNT_STOR_FILE', 
    26 => 'READ_ERROR', 
    27 => 'OUT_OF_MEMORY', 
    28 => 'OPERATION_TIMEOUTED', 
    29 => 'FTP_COULDNT_SET_ASCII', 
    30 => 'FTP_PORT_FAILED', 
    31 => 'FTP_COULDNT_USE_REST', 
    32 => 'FTP_COULDNT_GET_SIZE', 
    33 => 'HTTP_RANGE_ERROR', 
    34 => 'HTTP_POST_ERROR', 
    35 => 'SSL_CONNECT_ERROR', 
    36 => 'FTP_BAD_DOWNLOAD_RESUME', 
    37 => 'FILE_COULDNT_READ_FILE', 
    38 => 'LDAP_CANNOT_BIND', 
    39 => 'LDAP_SEARCH_FAILED', 
    40 => 'LIBRARY_NOT_FOUND', 
    41 => 'FUNCTION_NOT_FOUND', 
    42 => 'ABORTED_BY_CALLBACK', 
    43 => 'BAD_FUNCTION_ARGUMENT', 
    44 => 'BAD_CALLING_ORDER', 
    45 => 'HTTP_PORT_FAILED', 
    46 => 'BAD_PASSWORD_ENTERED', 
    47 => 'TOO_MANY_REDIRECTS', 
    48 => 'UNKNOWN_TELNET_OPTION', 
    49 => 'TELNET_OPTION_SYNTAX', 
    50 => 'OBSOLETE', 
    51 => 'SSL_PEER_CERTIFICATE', 
    52 => 'GOT_NOTHING', 
    53 => 'SSL_ENGINE_NOTFOUND', 
    54 => 'SSL_ENGINE_SETFAILED', 
    55 => 'SEND_ERROR', 
    56 => 'RECV_ERROR', 
    57 => 'SHARE_IN_USE', 
    58 => 'SSL_CERTPROBLEM', 
    59 => 'SSL_CIPHER', 
    60 => 'SSL_CACERT', 
    61 => 'BAD_CONTENT_ENCODING', 
    62 => 'LDAP_INVALID_URL', 
    63 => 'FILESIZE_EXCEEDED', 
    64 => 'FTP_SSL_FAILED', 
]; 

スクリプト：

$urls = array(
    "http://php.net/", 
    "http://404.php.net/", 
    "httpnot://php.net/", 
); 

$mh   = curl_multi_init(); 
$codes  = []; 
$result = []; 
$connects = []; 

foreach ($urls as $i => $url) { 
    $connects[$i] = curl_init($url); 
    curl_setopt($connects[$i], CURLOPT_RETURNTRANSFER, 1); 
    curl_multi_add_handle($mh, $connects[$i]); 
} 

do { 
    $status = curl_multi_exec($mh, $active); 
    $info = curl_multi_info_read($mh, $count); 
    if ($info !== false) { 
     $codes[(int)$info['handle']] = (int)$info['result']; 
    } 
} 
while ($status === CURLM_CALL_MULTI_PERFORM || $active || $count); 

foreach ($connects as $i => $connect) { 
    $result[$i] = [ 
     'url'  => $urls[$i], 
     'code'  => $codes[(int)$connect], // 0 - 64 = curl_errno 
     'code_text' => $codes_texts[$codes[(int)$connect]], 
     'body_len' => strlen(curl_multi_getcontent($connect)), 
    ]; 
    curl_close($connect); 
} 

curl_multi_close($mh); 

echo "<pre>" . var_export($result, 1) . "</pre>"; 

結果：

array (
    0 => 
    array (
    'url' => 'http://php.net/', 
    'code' => 0, 
    'code_text' => 'OK', 
    'body_len' => 34462, 
), 
    1 => 
    array (
    'url' => 'http://404.php.net/', 
    'code' => 6, 
    'code_text' => 'COULDNT_RESOLVE_HOST', 
    'body_len' => 0, 
), 
    2 => 
    array (
    'url' => 'httpnot://php.net/', 
    'code' => 1, 
    'code_text' => 'UNSUPPORTED_PROTOCOL', 
    'body_len' => 0, 
), 
)