Как найти ошибки curl

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 

     }

These curl recipes show you how to debug curl requests to see what it’s sending and receiving. By default, curl only prints the response body. To make it print the full communication, including the request headers, SSL certificate information, response headers, and response body, use the -v command line argument. To make it print a hexdump of everything, use the --trace argument. To make it print both the response headers and the body, use the -i command line argument.

Make Curl Verbose

curl -v https://catonmat.net

This recipe uses the -v argument to make curl print detailed information about the request and the response. Lines prefixed by > is the data sent to the server, lines prefixed by < is the data received from the server, and lines starting with * is misc information, such as connection information, SSL handshake information, and protocol information.

Detailed Trace

curl --trace - https://catonmat.net

In this recipe, we use the --trace - argument to enable full trace dump of all incoming and outgoing data. The trace dump prints hexdump of all bytes sent and received.

Detailed Trace with Timestamps

curl --trace - --trace-time https://catonmat.net

This recipe adds --trace-time argument to curl. This argument, combined with --trace - makes curl print a detailed trace log. You can also combine --trace-time with -v to add timestamps to curl’s verbose output.

curl -i https://catonmat.net

By default, curl prints the response body to the screen. This recipe uses the -i argument to make it also print response headers. When this flag is specified, curl will first print the response headers, then a blank line, then the response body.

curl -s -o /dev/null -D - https://catonmat.net

To print only the response headers (and discard the body), three arguments have to be used together. The -s argument makes curl silent and hides errors and progress bar, then -o /dev/null (if you’re on Windows, use -o NUL) makes curl ignore the response body, and -D - prints response headers to stdout (- is stdout).

curl -v -s -o /dev/null --stderr - https://catonmat.net | grep '^>'

There is no easy way to print just the request headers with curl. You have to shell out to an external helper program to do it and use a bunch of command line options to disable all other output. This recipe enables the verbose output via the -v argument, then makes curl silent via the -s argument, then makes curl ignore the output from the server via the -o /dev/null argument, then makes curl to redirect stderr to stdout via the --stderr - argument, and finally asks grep to print all lines that begin with > that contain request headers.

Print Only the Response Code

curl -w '%{response_code}' -s -o /dev/null https://catonmat.net

This recipe uses the -w argument that makes curl print extra information after the request has completed. The extra information we’re asking it to print is %{response_code} which is the response code of the request. To make curl only print the code and not the content or other information, we also use -s to silence curl and -o /dev/null that ignores the response output.

Created by Browserling

These curl recipes were written down by me and my team at Browserling. We use recipes like this every day to get things done and improve our product. Browserling itself is an online cross-browser testing service powered by alien technology. Check it out!

Secret message: If you love my curl recipe, then I love you, too! Use coupon code CURLLING to get a discount at my company.