Вывод ошибок curl php

you can generate curl error after its execution

$url = 'http://example.com';

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
if(curl_errno($ch)){
    echo 'Request Error:' . curl_error($ch);
}

and here are curl error code

if someone need more information about curl errors

<?php

    $error_codes=array(
    [1] => 'CURLE_UNSUPPORTED_PROTOCOL',
    [2] => 'CURLE_FAILED_INIT',
    [3] => 'CURLE_URL_MALFORMAT',
    [4] => 'CURLE_URL_MALFORMAT_USER',
    [5] => 'CURLE_COULDNT_RESOLVE_PROXY',
    [6] => 'CURLE_COULDNT_RESOLVE_HOST',
    [7] => 'CURLE_COULDNT_CONNECT',
    [8] => 'CURLE_FTP_WEIRD_SERVER_REPLY',
    [9] => 'CURLE_REMOTE_ACCESS_DENIED',
    [11] => 'CURLE_FTP_WEIRD_PASS_REPLY',
    [13] => 'CURLE_FTP_WEIRD_PASV_REPLY',
    [14]=>'CURLE_FTP_WEIRD_227_FORMAT',
    [15] => 'CURLE_FTP_CANT_GET_HOST',
    [17] => 'CURLE_FTP_COULDNT_SET_TYPE',
    [18] => 'CURLE_PARTIAL_FILE',
    [19] => 'CURLE_FTP_COULDNT_RETR_FILE',
    [21] => 'CURLE_QUOTE_ERROR',
    [22] => 'CURLE_HTTP_RETURNED_ERROR',
    [23] => 'CURLE_WRITE_ERROR',
    [25] => 'CURLE_UPLOAD_FAILED',
    [26] => 'CURLE_READ_ERROR',
    [27] => 'CURLE_OUT_OF_MEMORY',
    [28] => 'CURLE_OPERATION_TIMEDOUT',
    [30] => 'CURLE_FTP_PORT_FAILED',
    [31] => 'CURLE_FTP_COULDNT_USE_REST',
    [33] => 'CURLE_RANGE_ERROR',
    [34] => 'CURLE_HTTP_POST_ERROR',
    [35] => 'CURLE_SSL_CONNECT_ERROR',
    [36] => 'CURLE_BAD_DOWNLOAD_RESUME',
    [37] => 'CURLE_FILE_COULDNT_READ_FILE',
    [38] => 'CURLE_LDAP_CANNOT_BIND',
    [39] => 'CURLE_LDAP_SEARCH_FAILED',
    [41] => 'CURLE_FUNCTION_NOT_FOUND',
    [42] => 'CURLE_ABORTED_BY_CALLBACK',
    [43] => 'CURLE_BAD_FUNCTION_ARGUMENT',
    [45] => 'CURLE_INTERFACE_FAILED',
    [47] => 'CURLE_TOO_MANY_REDIRECTS',
    [48] => 'CURLE_UNKNOWN_TELNET_OPTION',
    [49] => 'CURLE_TELNET_OPTION_SYNTAX',
    [51] => 'CURLE_PEER_FAILED_VERIFICATION',
    [52] => 'CURLE_GOT_NOTHING',
    [53] => 'CURLE_SSL_ENGINE_NOTFOUND',
    [54] => 'CURLE_SSL_ENGINE_SETFAILED',
    [55] => 'CURLE_SEND_ERROR',
    [56] => 'CURLE_RECV_ERROR',
    [58] => 'CURLE_SSL_CERTPROBLEM',
    [59] => 'CURLE_SSL_CIPHER',
    [60] => 'CURLE_SSL_CACERT',
    [61] => 'CURLE_BAD_CONTENT_ENCODING',
    [62] => 'CURLE_LDAP_INVALID_URL',
    [63] => 'CURLE_FILESIZE_EXCEEDED',
    [64] => 'CURLE_USE_SSL_FAILED',
    [65] => 'CURLE_SEND_FAIL_REWIND',
    [66] => 'CURLE_SSL_ENGINE_INITFAILED',
    [67] => 'CURLE_LOGIN_DENIED',
    [68] => 'CURLE_TFTP_NOTFOUND',
    [69] => 'CURLE_TFTP_PERM',
    [70] => 'CURLE_REMOTE_DISK_FULL',
    [71] => 'CURLE_TFTP_ILLEGAL',
    [72] => 'CURLE_TFTP_UNKNOWNID',
    [73] => 'CURLE_REMOTE_FILE_EXISTS',
    [74] => 'CURLE_TFTP_NOSUCHUSER',
    [75] => 'CURLE_CONV_FAILED',
    [76] => 'CURLE_CONV_REQD',
    [77] => 'CURLE_SSL_CACERT_BADFILE',
    [78] => 'CURLE_REMOTE_FILE_NOT_FOUND',
    [79] => 'CURLE_SSH',
    [80] => 'CURLE_SSL_SHUTDOWN_FAILED',
    [81] => 'CURLE_AGAIN',
    [82] => 'CURLE_SSL_CRL_BADFILE',
    [83] => 'CURLE_SSL_ISSUER_ERROR',
    [84] => 'CURLE_FTP_PRET_FAILED',
    [84] => 'CURLE_FTP_PRET_FAILED',
    [85] => 'CURLE_RTSP_CSEQ_ERROR',
    [86] => 'CURLE_RTSP_SESSION_ERROR',
    [87] => 'CURLE_FTP_BAD_FILE_LIST',
    [88] => 'CURLE_CHUNK_FAILED');

    ?>

Я использую функции PHP curl для отправки данных на веб-сервер с моей локальной машины. Мой код выглядит следующим образом:

$c = curl_init();

curl_setopt($c, CURLOPT_URL, $url);

curl_setopt($c, CURLOPT_RETURNTRANSFER, true);

curl_setopt($c, CURLOPT_POST, true);

curl_setopt($c, CURLOPT_POSTFIELDS, $data);

$result = curl_exec($c);

if (curl_exec($c) === false) {

    echo «ok»;

} else {

    echo «error»;

}

curl_close($c);

 К сожалению, я не могу поймать ни одной ошибки типа 404, 500 или сетевого уровня. Как же мне узнать, что данные не были размещены или получены с удаленного сервера?

Ответ 1

Вы можете использовать функцию curl_error(), чтобы определить, произошла ли какая-то ошибка. Например:

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $your_url);

curl_setopt($ch, CURLOPT_FAILONERROR, true); // Требуется для того, чтобы коды ошибок HTTP сообщались через наш вызов к curl_error($ch)

//…

curl_exec($ch);

if (curl_errno($ch)) {

    $error_msg = curl_error($ch);

}

curl_close($ch);

if (isset($error_msg)) {

    // TODO — Обработать ошибку cURL соответствующим образом

}

Ответ 2

Если CURLOPT_FAILONERROR равно false, ошибки http не будут вызывать ошибок curl.

<?php

if (@$_GET[‘curl’]==»yes») {

  header(‘HTTP/1.1 503 Service Temporarily Unavailable’);

} else {

  $ch=curl_init($url = «http://».$_SERVER[‘SERVER_NAME’].$_SERVER[‘PHP_SELF’].»?curl=yes»);

  curl_setopt($ch, CURLOPT_FAILONERROR, true);

  $response=curl_exec($ch);

  $http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

  $curl_errno= curl_errno($ch);

  if ($http_status==503)

    echo «HTTP Status == 503 <br/>»;

  echo «Curl Errno returned $curl_errno <br/>»;

}

Ответ 3

Вы можете сгенерировать ошибку curl после его выполнения:

$url = ‘http://example.com’;

$ch = curl_init($url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$result = curl_exec($ch);

if(curl_errno($ch)){

    echo ‘Request Error:’ . curl_error($ch);

}

 И вот коды ошибок curl:

если кому-то нужна дополнительная информация об ошибках curl

<?php

    $error_codes=array(

    [1] => ‘CURLE_UNSUPPORTED_PROTOCOL’,

    [2] => ‘CURLE_FAILED_INIT’,

    [3] => ‘CURLE_URL_MALFORMAT’,

    [4] => ‘CURLE_URL_MALFORMAT_USER’,

    [5] => ‘CURLE_COULDNT_RESOLVE_PROXY’,

    [6] => ‘CURLE_COULDNT_RESOLVE_HOST’,

    [7] => ‘CURLE_COULDNT_CONNECT’,

    [8] => ‘CURLE_FTP_WEIRD_SERVER_REPLY’,

    [9] => ‘CURLE_REMOTE_ACCESS_DENIED’,

    [11] => ‘CURLE_FTP_WEIRD_PASS_REPLY’,

    [13] => ‘CURLE_FTP_WEIRD_PASV_REPLY’,

    [14]=>’CURLE_FTP_WEIRD_227_FORMAT’,

    [15] => ‘CURLE_FTP_CANT_GET_HOST’,

    [17] => ‘CURLE_FTP_COULDNT_SET_TYPE’,

    [18] => ‘CURLE_PARTIAL_FILE’,

    [19] => ‘CURLE_FTP_COULDNT_RETR_FILE’,

    [21] => ‘CURLE_QUOTE_ERROR’,

    [22] => ‘CURLE_HTTP_RETURNED_ERROR’,

    [23] => ‘CURLE_WRITE_ERROR’,

    [25] => ‘CURLE_UPLOAD_FAILED’,

    [26] => ‘CURLE_READ_ERROR’,

    [27] => ‘CURLE_OUT_OF_MEMORY’,

    [28] => ‘CURLE_OPERATION_TIMEDOUT’,

    [30] => ‘CURLE_FTP_PORT_FAILED’,

    [31] => ‘CURLE_FTP_COULDNT_USE_REST’,

    [33] => ‘CURLE_RANGE_ERROR’,

    [34] => ‘CURLE_HTTP_POST_ERROR’,

    [35] => ‘CURLE_SSL_CONNECT_ERROR’,

    [36] => ‘CURLE_BAD_DOWNLOAD_RESUME’,

    [37] => ‘CURLE_FILE_COULDNT_READ_FILE’,

    [38] => ‘CURLE_LDAP_CANNOT_BIND’,

    [39] => ‘CURLE_LDAP_SEARCH_FAILED’,

    [41] => ‘CURLE_FUNCTION_NOT_FOUND’,

    [42] => ‘CURLE_ABORTED_BY_CALLBACK’,

    [43] => ‘CURLE_BAD_FUNCTION_ARGUMENT’,

    [45] => ‘CURLE_INTERFACE_FAILED’,

    [47] => ‘CURLE_TOO_MANY_REDIRECTS’,

    [48] => ‘CURLE_UNKNOWN_TELNET_OPTION’,

    [49] => ‘CURLE_TELNET_OPTION_SYNTAX’,

    [51] => ‘CURLE_PEER_FAILED_VERIFICATION’,

    [52] => ‘CURLE_GOT_NOTHING’,

    [53] => ‘CURLE_SSL_ENGINE_NOTFOUND’,

    [54] => ‘CURLE_SSL_ENGINE_SETFAILED’,

    [55] => ‘CURLE_SEND_ERROR’,

    [56] => ‘CURLE_RECV_ERROR’,

    [58] => ‘CURLE_SSL_CERTPROBLEM’,

    [59] => ‘CURLE_SSL_CIPHER’,

    [60] => ‘CURLE_SSL_CACERT’,

    [61] => ‘CURLE_BAD_CONTENT_ENCODING’,

    [62] => ‘CURLE_LDAP_INVALID_URL’,

    [63] => ‘CURLE_FILESIZE_EXCEEDED’,

    [64] => ‘CURLE_USE_SSL_FAILED’,

    [65] => ‘CURLE_SEND_FAIL_REWIND’,

    [66] => ‘CURLE_SSL_ENGINE_INITFAILED’,

    [67] => ‘CURLE_LOGIN_DENIED’,

    [68] => ‘CURLE_TFTP_NOTFOUND’,

    [69] => ‘CURLE_TFTP_PERM’,

    [70] => ‘CURLE_REMOTE_DISK_FULL’,

    [71] => ‘CURLE_TFTP_ILLEGAL’,

    [72] => ‘CURLE_TFTP_UNKNOWNID’,

    [73] => ‘CURLE_REMOTE_FILE_EXISTS’,

    [74] => ‘CURLE_TFTP_NOSUCHUSER’,

    [75] => ‘CURLE_CONV_FAILED’,

    [76] => ‘CURLE_CONV_REQD’,

    [77] => ‘CURLE_SSL_CACERT_BADFILE’,

    [78] => ‘CURLE_REMOTE_FILE_NOT_FOUND’,

    [79] => ‘CURLE_SSH’,

    [80] => ‘CURLE_SSL_SHUTDOWN_FAILED’,

    [81] => ‘CURLE_AGAIN’,

    [82] => ‘CURLE_SSL_CRL_BADFILE’,

    [83] => ‘CURLE_SSL_ISSUER_ERROR’,

    [84] => ‘CURLE_FTP_PRET_FAILED’,

    [84] => ‘CURLE_FTP_PRET_FAILED’,

    [85] => ‘CURLE_RTSP_CSEQ_ERROR’,

    [86] => ‘CURLE_RTSP_SESSION_ERROR’,

    [87] => ‘CURLE_FTP_BAD_FILE_LIST’,

    [88] => ‘CURLE_CHUNK_FAILED’);

    ?>

Ответ 4

Поскольку вы заинтересованы в отлове ошибок, связанных с сетью, и ошибок HTTP, ниже приведен лучший подход:

function curl_error_test($url) {

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $url);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    $responseBody = curl_exec($ch);

    /*

     * if curl_exec failed then

     * $responseBody равно false

     * curl_errno() возвращает ненулевое число

     * curl_error() возвращает непустую строку

     * Какой из них использовать — решать вам

     */

    if ($responseBody === false) {

        return «CURL Error: » . curl_error($ch);

    }

    $responseCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    /*

     * 4xx коды состояния — ошибки клиента

     * 5xx коды состояния — ошибки сервера

     */

    if ($responseCode >= 400) {

        return «HTTP Error: » . $responseCode;

    }

    return «Нет ошибки CURL или HTTP «;

}

 Тесты:

curl_error_test(«http://expamle.com»);          //  Ошибка CURL : Невозможно определить хост : expamle.com

curl_error_test(«http://example.com/whatever»); // Ошибка HTTP: 404

curl_error_test(«http://example.com»);          // Все в порядке с CURL или HTTP

Ответ 5

Еще один вариант кода:

  $responseInfo = curl_getinfo($ch);

    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);

    $body = substr($response, $header_size);

    $result=array();

    $result[‘httpCode’]=$httpCode;

    $result[‘body’]=json_decode($body);

    $result[‘responseInfo’]=$responseInfo;

    print_r($httpCode); 

     print_r($result[‘body’]); exit;

    curl_close($ch);

    if($httpCode == 403) {

        print_r(«Доступ запрещен»);

        exit;

    }   else {

         // другие ошибки 

     }

PHP’s cURL functions are extremely useful for sending HTTP requests.

Some examples of its usefulness.

• Retrieving data from an external API.
• Sending data to an external web service.
• Checking to see if a HTTP resource exists.
• Crawling / scraping web pages (logging into other websites with PHP).

Although you can easily request external content via the function file_get_contents, cURL is much more useful in the sense that it allows us to detect and handle certain HTTP errors.

Let’s take the following example.

$url = 'http://example.com';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
echo $result;

As you can see, we have setup a very simple GET request that returns the contents of a website called example.com.

Unfortunately, this code doesn’t take into account the fact that the cURL request could fail. As a result, the request might fail without providing us with any details about what happened.

Using curl_errno to detect cURL errors.

This is where the curl_errno function comes in handy.

The curl_errno function will return the number 0 (zero) if the request was successful. In other words, it will return a “falsey” value if no error occurs. This is because PHP sees 0 as a false value in a boolean context.

This allows us to figure out whether or not our cURL request resulted in an error.

Take a look at the following example.

$url = 'http://example.com';

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
if(curl_errno($ch)){
    echo 'Request Error:' . curl_error($ch);
}

If an error occurs, then our script will print out the result of the curl_error function.

Throwing Exceptions.

In certain situations, you might want to throw an exception if a cURL request fails.

For this example, let us pretend that we have an object function called get.

/**
 * Send a GET request to a URL.
 * 
 * @param string $url
 * @return string
 * @throws Exception If cURL request fails.
 */
public function get($url){
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($ch);
    if(curl_errno($ch)){
        throw new Exception(curl_error($ch));
    }
    return $result;
}

As you can see, the function above will attempt to send a GET request to a given URL.

If all goes well, the function will return the contents of the URL.

However, if the request fails and a cURL error exists, PHP will throw an Exception.

This allows us to handle the request like so.

try{
    $object->get('http://test.com');
} catch(Exception $e){
    //do something with the exception you caught
}

In the above piece of code, we are using a TRY-CATCH block.

If we do not want our application to continue after a failed HTTP request, we can omit the TRY-CATCH block and let our Exception Handler deal with it.