PHP curl 使用

基本使用

使用 CURLOPT_URL 設定連結網址，然後執行即可。順利的話就可以取得回傳網頁原始碼

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.ted.com/');
curl_exec($ch);
curl_close($ch);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'http://www.ted.com/');

curl_exec($ch);

curl_close($ch);

不直接顯示取得內容

將 CURLOPT_RETURNTRANSFER 設定為 true 即可

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.ted.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1); // 不直接出現回傳值
curl_exec($ch);
curl_close($ch);

<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'http://www.ted.com');

curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1); // 不直接出現回傳值

curl_exec($ch);

curl_close($ch);

加上 POST 資料

增加 CURLOPT_POSTFIELDS 參數，傳遞 array() 陣列

Google+ 在 OAuth 內的資訊必須使用 POST 傳遞，使用方法大致如下

$send_url = $this->accounts_oauth2_token;
$token_post = array(
    "code" => $code,
    "client_id" => $this->client_id,
    "client_secret" => $this->client_secret,
    "redirect_uri" => $this->redirect_uri,
    "grant_type" => "authorization_code"
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $send_url);
curl_setopt($ch, CURLOPT_POSTFIELDS, $token_post);
curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1); // 不直接出現回傳值
$response = curl_exec($ch); // 回傳 access_token
curl_close($ch);

$send_url = $this->accounts_oauth2_token;

$token_post = array(

"code" => $code,

"client_id" => $this->client_id,

"client_secret" => $this->client_secret,

"redirect_uri" => $this->redirect_uri,

"grant_type" => "authorization_code"

);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $send_url);

curl_setopt($ch, CURLOPT_POSTFIELDS, $token_post);

curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1); // 不直接出現回傳值

$response = curl_exec($ch); // 回傳 access_token

curl_close($ch);

取得處理狀態

curl_getinfo() 可以得知執行後結果

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $m3u8);
curl_setopt($ch, CURLOPT_REFERER, 'http://hichannel.hinet.net/radio/index.do' );
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);

// 不可用資源回傳 410
if ( $info['http_code'] == '200' ) {
    echo $m3u8;
    break;
}
else {
    //echo $m3u8;
    echo $i++;
    //sleep(1);
}

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $m3u8);

curl_setopt($ch, CURLOPT_REFERER, 'http://hichannel.hinet.net/radio/index.do' );

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_exec($ch);

$info = curl_getinfo($ch);

curl_close($ch);

// 不可用資源回傳 410

if ( $info['http_code'] == '200' ) {

echo $m3u8;

break;

}

else {

//echo $m3u8;

echo $i++;

//sleep(1);

}

設定或增加其他功能、參數

curl 预定义常量

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $URL .'/adv.do');
curl_setopt($ch, CURLOPT_REFERER, 'http://hichannel.hinet.net' );
curl_exec($ch);
curl_close($ch);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $URL .'/adv.do');

curl_setopt($ch, CURLOPT_REFERER, 'http://hichannel.hinet.net' );

curl_exec($ch);

curl_close($ch);

設定 REFERER 參照來源網址

如何得知送出的 Head ?

步驟

設定 CURLINFO_HEADER_OUT 為 true
使用 curl_getinfo() 取得輸出結果，送出 Head 也在結果內

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://radio-hichannel.cdn.hinet.net/crossdomain.xml');
curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.94 Safari/537.36');
curl_setopt($ch, CURLOPT_REFERER, 'http://hichannel.hinet.net/radio/index.do' );
curl_setopt($ch, CURLOPT_HTTPHEADER, array("X-Requested-With: ShockwaveFlash/21.0.0.216", "Host: radio-hichannel.cdn.hinet.net"));
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1);

$crossdomain = curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'http://radio-hichannel.cdn.hinet.net/crossdomain.xml');

curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.94 Safari/537.36');

curl_setopt($ch, CURLOPT_REFERER, 'http://hichannel.hinet.net/radio/index.do' );

curl_setopt($ch, CURLOPT_HTTPHEADER, array("X-Requested-With: ShockwaveFlash/21.0.0.216", "Host: radio-hichannel.cdn.hinet.net"));

curl_setopt($ch, CURLINFO_HEADER_OUT, true);

curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1);

$crossdomain = curl_exec($ch);

$info = curl_getinfo($ch);

curl_close($ch);

增加自定義 Head

Posting from cURL: HTTP_X_REQUESTED_WITH

$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, array("X-Requested-With: XMLHttpRequest"));
$result = curl_exec ($ch);
curl_close ($ch);

$ch = curl_init();

curl_setopt($ch, CURLOPT_HTTPHEADER, array("X-Requested-With: XMLHttpRequest"));

$result = curl_exec ($ch);

curl_close ($ch);

增加自定義 - 傳遞連線 IP

cURL ip address

curl_setopt($ch, CURLOPT_HTTPHEADER , array("REMOTE_ADDR: $ip"));

1	curl_setopt($ch, CURLOPT_HTTPHEADER , array("REMOTE_ADDR: $ip"));

HEAD 名稱前面強制加上 HTTP_ 開頭，因此取得 IP 時必須相互搭配

Array
(
    [REDIRECT_STATUS] => 200
    [HTTP_HOST] => soundu2.mj-app.com.tw
    [HTTP_ACCEPT] => */*
    [HTTP_REMOTE_ADDR] => 8.8.8.8
    [CONTENT_LENGTH] => 177
:
:

Array

(

[REDIRECT_STATUS] => 200

[HTTP_HOST] => soundu2.mj-app.com.tw

[HTTP_ACCEPT] => */*

[HTTP_REMOTE_ADDR] => 8.8.8.8

[CONTENT_LENGTH] => 177

目的端 PHP 取得 IP 程式方法

首先請先看以下參考連結

curl 如何模拟remote_addr 取的ip

這裡討論到一段網路普遍「謠傳」的取得 IP 代碼

if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
    $ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
    $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
} else {
    $ip = $_SERVER['REMOTE_ADDR'];
}

if (!empty($_SERVER['HTTP_CLIENT_IP'])) {

$ip = $_SERVER['HTTP_CLIENT_IP'];

} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {

$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];

} else {

$ip = $_SERVER['REMOTE_ADDR'];

}

大部分抄這段程式碼的人都不知道為什麼要先取 HTTP_CLIENT_IP 和 HTTP_X_FORWARDED_FOR 這兩個值，等學會 curl 之後就會知道大大說這是唬爛是正確的。

<?php
if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
    $ip = $_SERVER['HTTP_CLIENT_IP'];
} else {
    $ip = $_SERVER['REMOTE_ADDR'];
}

$ss = print_r($_SERVER, true);
file_put_contents('/tmp/curl.log', $ss, FILE_APPEND | LOCK_EX);

<?php

if (!empty($_SERVER['HTTP_CLIENT_IP'])) {

$ip = $_SERVER['HTTP_CLIENT_IP'];

} else {

$ip = $_SERVER['REMOTE_ADDR'];

}

$ss = print_r($_SERVER, true);

file_put_contents('/tmp/curl.log', $ss, FILE_APPEND | LOCK_EX);

想要知道接收端資訊必須另外儲存，文字檔、資料庫等都可以，為了方便這裡使用文字檔

隱藏 _SERVER['REMOTE_ADDR']

//curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP); // 尚未知道確切用途
curl_setopt($ch, CURLOPT_PROXY , "186.90.211.39:8080");

1 2	//curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP); // 尚未知道確切用途 curl_setopt($ch, CURLOPT_PROXY , "186.90.211.39:8080");

設定使用 Proxy Server 代理連線，對方取得的 REMOTE_ADDR 就是 Proxy Server 的 IP

Array
(
    [UNIQUE_ID] => V0MapsCoAAMAAYZQ9qcAAAAD
    [HTTP_HOST] => hoyo.idv.tw
    [HTTP_CONNECTION] => close
    [HTTP_VIA] => 1.0 tinyproxy (tinyproxy/1.8.2)
    [HTTP_ACCEPT] => */*
    [HTTP_CLIENT_IP] => 8.8.8.8
    [PATH] => /sbin:/bin:/usr/sbin:/usr/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/root/bin:/usr/local/texlive/2010/bin/amd64-freebsd
    [SERVER_SIGNATURE] => 
    [SERVER_SOFTWARE] => Apache/2.2.25 (FreeBSD) PHP/5.5.4 mod_ssl/2.2.25 OpenSSL/0.9.8x DAV/2
    [SERVER_NAME] => hoyo.idv.tw
    [SERVER_ADDR] => 192.168.0.3
    [SERVER_PORT] => 80
    [REMOTE_ADDR] => 186.90.211.39
    [DOCUMENT_ROOT] => /WEBSite/www/WWW
    [SERVER_ADMIN] => pc@hoyo.idv.tw
    [SCRIPT_FILENAME] => /WEBSite/www/WWW/curlx.php
    [REMOTE_PORT] => 43403
    [GATEWAY_INTERFACE] => CGI/1.1
    [SERVER_PROTOCOL] => HTTP/1.0
    [REQUEST_METHOD] => GET
    [QUERY_STRING] => 
    [REQUEST_URI] => /curlx.php
    [SCRIPT_NAME] => /curlx.php
    [PHP_SELF] => /curlx.php
    [REQUEST_TIME_FLOAT] => 1464015526.863
    [REQUEST_TIME] => 1464015526
)

Array

(

[UNIQUE_ID] => V0MapsCoAAMAAYZQ9qcAAAAD

[HTTP_HOST] => hoyo.idv.tw

[HTTP_CONNECTION] => close

[HTTP_VIA] => 1.0 tinyproxy (tinyproxy/1.8.2)

[HTTP_ACCEPT] => */*

[HTTP_CLIENT_IP] => 8.8.8.8

[PATH] => /sbin:/bin:/usr/sbin:/usr/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/root/bin:/usr/local/texlive/2010/bin/amd64-freebsd

[SERVER_SIGNATURE] =>

[SERVER_SOFTWARE] => Apache/2.2.25 (FreeBSD) PHP/5.5.4 mod_ssl/2.2.25 OpenSSL/0.9.8x DAV/2

[SERVER_NAME] => hoyo.idv.tw

[SERVER_ADDR] => 192.168.0.3

[SERVER_PORT] => 80

[REMOTE_ADDR] => 186.90.211.39

[DOCUMENT_ROOT] => /WEBSite/www/WWW

[SERVER_ADMIN] => pc@hoyo.idv.tw

[SCRIPT_FILENAME] => /WEBSite/www/WWW/curlx.php

[REMOTE_PORT] => 43403

[GATEWAY_INTERFACE] => CGI/1.1

[SERVER_PROTOCOL] => HTTP/1.0

[REQUEST_METHOD] => GET

[QUERY_STRING] =>

[REQUEST_URI] => /curlx.php

[SCRIPT_NAME] => /curlx.php

[PHP_SELF] => /curlx.php

[REQUEST_TIME_FLOAT] => 1464015526.863

[REQUEST_TIME] => 1464015526

)

送出 HTTP Auth

Sending a username and password with PHP CURL

如果有一個網頁使用 HTTP Auth 使用者認證，該如何使用 PHP curl 登錄取得資料？

以下是 zopim 的取得聊天紀錄範例，本來是使用 Linux curl 指令操作的，例如：

curl https://www.zopim.com/api/v2/chats -v -u username:password

1	curl https://www.zopim.com/api/v2/chats -v -u username:password

PHP 可以這樣實現

$username = ZOPIM_Username;
$password = ZOPIM_Password;
$URL = 'https://www.zopim.com/api/v2/chats';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$URL);
curl_setopt($ch, CURLOPT_TIMEOUT, 30); //timeout after 30 seconds
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_USERPWD, $username.':'.$password );
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
$result = curl_exec ($ch);
$status_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); //get status code
curl_close ($ch);

$username = ZOPIM_Username;

$password = ZOPIM_Password;

$URL = 'https://www.zopim.com/api/v2/chats';

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL,$URL);

curl_setopt($ch, CURLOPT_TIMEOUT, 30); //timeout after 30 seconds

curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);

curl_setopt($ch, CURLOPT_USERPWD, $username.':'.$password );

curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);

$result = curl_exec ($ch);

$status_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); //get status code

curl_close ($ch);

Timeout 以及取得 Timeout 錯誤

PHP 如何抓 CURL TIMEOUT 的狀態值

<?php
$url = '';
$JsonPost = '';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POSTFIELDS, $JsonPost);
curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$Response = curl_exec($ch);

if (curl_errno($ch) == 28){
    echo '主機無法連接，請稍後重新測試！';
}
else{
    echo $Response;
}

curl_close($ch);

<?php

$url = '';

$JsonPost = '';

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_POSTFIELDS, $JsonPost);

curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1);

curl_setopt($ch, CURLOPT_TIMEOUT, 10);

$Response = curl_exec($ch);

if (curl_errno($ch) == 28){

echo '主機無法連接，請稍後重新測試！';

}

else{

echo $Response;

}

curl_close($ch);

上傳檔案 PHP 5.4 以下

將檔案存放路徑的檔案名稱前加上 @ 即可

// curl
$url = $DocServer.'/DocSharing/fileUploadForeign';

$post = array(
    'siteId' => xuedianyun_siteId,
    'timestamp' => $timestamp,
    'convertTools' => 'msoffice',
    'authId' => $authId,
    'createUserName' => 'hoyo',
    'createUserID' => 'hoyo',
    'upfile' => '@1-2.ppt'
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1);
$Response = curl_exec($ch);
curl_close($ch);

// curl

$url = $DocServer.'/DocSharing/fileUploadForeign';

$post = array(

'siteId' => xuedianyun_siteId,

'timestamp' => $timestamp,

'convertTools' => 'msoffice',

'authId' => $authId,

'createUserName' => 'hoyo',

'createUserID' => 'hoyo',

'upfile' => '@1-2.ppt'

);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_POSTFIELDS, $post);

curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1);

$Response = curl_exec($ch);

curl_close($ch);

上傳檔案 PHP 5.5 以上

cURL file uploads not working anymore after upgrade from PHP 5.5 to 5.6

<?php
$aPost = array(
    'default_file' => 'html_version.html',
    'expiration' => (2*31*24*60*60)
)
if ((version_compare(PHP_VERSION, '5.5') >= 0)) {
    $aPost['file'] = new CURLFile($localFile);
    curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true);
} else {
    $aPost['file'] = "@".$localFile;
}

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiurl);
curl_setopt($ch, CURLOPT_TIMEOUT, 120);
curl_setopt($ch, CURLOPT_BUFFERSIZE, 128);
curl_setopt($ch, CURLOPT_POSTFIELDS, $aPost);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$sResponse = curl_exec ($ch);

<?php

$aPost = array(

'default_file' => 'html_version.html',

'expiration' => (2*31*24*60*60)

)

if ((version_compare(PHP_VERSION, '5.5') >= 0)) {

$aPost['file'] = new CURLFile($localFile);

curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true);

} else {

$aPost['file'] = "@".$localFile;

}

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $apiurl);

curl_setopt($ch, CURLOPT_TIMEOUT, 120);

curl_setopt($ch, CURLOPT_BUFFERSIZE, 128);

curl_setopt($ch, CURLOPT_POSTFIELDS, $aPost);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$sResponse = curl_exec ($ch);

如要沿用 5.4 舊方法則設定 curl_setopt($ch, CURLOPT_SAFE_UPLOAD, false); 即可

HTTP 417 - Expectation Failed

Workaround in PHP cURL for the 100-continue expectation

curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));

1	curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));

19,286 total views, 6 views today

基本使用

不直接顯示取得內容

加上 POST 資料

取得處理狀態

設定或增加其他功能、參數

如何得知送出的 Head ?

增加自定義 Head

增加自定義 - 傳遞連線 IP

隱藏 _SERVER['REMOTE_ADDR']

送出 HTTP Auth

Timeout 以及取得 Timeout 錯誤

上傳檔案 PHP 5.4 以下

上傳檔案 PHP 5.5 以上

HTTP 417 - Expectation Failed

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