php_ curl_exec - manual

[edit] Last updated: Fri, 05 Jul 2013

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curl_exec

(PHP 4 >= 4.0.2, PHP 5)

curl_exec Perform a cURL session

Description

mixed curl_exec ( resource $ch )

Execute the given cURL session.

This function should be called after initializing a cURL session and all the options for the sessionare set.

Parameters

ch

A cURL handle returned by curl_init().

Return Values

Returns TRUE on success or FALSE on failure. However, if the CURLOPT_RETURNTRANSFER option isset, it will return the result on success, FALSE on failure.

Examples

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PHP: curl_exec - Manual http://au1.php.net/manual/en/function.curl-exec.php

1 of 16 11/07/2013 12:02

Report a bug

11 3 years ago

See Also

curl_multi_exec() - Run the sub-connections of the current cURL handle

User Contributed Notes curl_exec - [26 notes]

David from Code2Design.com

Just in case anyone is looking for a a couple of simple functions [to help automate cURLprocesses for POST and GET queries] I thought I'd post these.

2 10 years ago

2 11 years ago

{ trigger_error(curl_error($ch)); } curl_close($ch); return $result;}

/** * Send a GET requst using cURL * @param string $url to request * @param array $get values to send * @param array $options for cURL * @return string */function curl_get($url, array $get = NULL, array $options = array()){ $defaults = array( CURLOPT_URL => $url. (strpos($url, '?') === FALSE ? '?' : '').http_build_query($get), CURLOPT_HEADER => 0, CURLOPT_RETURNTRANSFER => TRUE, CURLOPT_TIMEOUT => 4 ); $ch = curl_init(); curl_setopt_array($ch, ($options + $defaults)); if( ! $result = curl_exec($ch)) { trigger_error(curl_error($ch)); } curl_close($ch); return $result;}?>

nagyp at hunaxon dot hu

fyi:It returns false if there's an error while executing the curl session, no matter howCURLOPT_RETURNTRANSFER is set.

ppruett at webengr dot com

fyi - if you are having problems getting awebpage to display in your webpage withcurl_setopt(CURLOPT_RETURNTRANSFER, 1);due to version bugginess perhaps,you may can use output control functionslike this to show a web pageinside your webpage:

whatever

$ch = curl_init("http://www.cocoavillage.com/");// use output buffering instead of returntransfer -itmaybebuggyob_start();



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1 2 years ago

$retrievedhtml = ob_get_contents();ob_end_clean();// if you intend to print this page with meta tags, better clear out any expiration tag// $result = preg_replace('/(?s)]*>/i', '', $retrievedhtml);// for now I just want what is between the body tags so need// somehow cut the header footer $bodyandend = stristr($retrievedhtml,"") + 1;// got to change all to lowercase temporarily// because end body may be upperlowercasemix// to bad strirstr does not exist$temptofindposition=strtolower($bodyandend);$positionendendbodytag=strpos($temptofindposition,"

1 3 years ago

1 11 years ago

1 12 years ago

4 11 months ago

------------------------------------------------------(now useless) details at:

http://curl.haxx.se/mail/lib-2011-02/0101.html

http://readlist.com/lists/lists.php.net/php-general/16/81195.html

ivanargulo at NOSPAM gmail dot com

If having problems with special chars or entities (like , , , etc.), using the ISOencode, just decode the values given with the function utf8_decode().

For example:

The returned string is the following:

Ivn

Using utf8_decode, the result in ISO is

Ivn

colins at infofind dot com

Checking the source, curl_exec seems to return FALSE on failure, TRUE on success (unlessCURLOPT_RETURNTRANSFER is set 1, and then it returns the returned data).

csaba at alum dot mit dot edu

If you retrieve a web page and print it (so you can see it in your browser), and the pagehas an expiration, this expiration now applies to MyProgram.php and next time yourprogram/page is called, even if it's grabbing a different web page, it will show what itjust displayed. In Netscape you can get rid of this by going into Edit, Options, Advanced,Cache, and clear out the Disk Cache. But this is really annoying after short order. Thefollowing prevents the above scenario:

4 5 years ago

CURLOPT_RETURNTRANSFER Option

curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);

Bert

roman dot ivasyuk at gmail dot com

ch , CURLOPT_RETURNTRANSFER , 1 ); @curl_setopt ( $this -> ch , CURLOPT_VERBOSE , 1 ); @curl_setopt ( $this -> ch , CURLOPT_HEADER , 1 ); if ($params['method'] == "HEAD") @curl_setopt($this -> ch,CURLOPT_NOBODY,1); @curl_setopt ( $this -> ch, CURLOPT_FOLLOWLOCATION, 1); @curl_setopt ( $this -> ch , CURLOPT_HTTPHEADER, $header ); if ($params['referer']) @curl_setopt ($this -> ch , CURLOPT_REFERER,$params['referer'] ); @curl_setopt ( $this -> ch , CURLOPT_USERAGENT, $user_agent); if ($params['cookie']) @curl_setopt ($this -> ch , CURLOPT_COOKIE,$params['cookie']);

if ( $params['method'] == "POST" ) {



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} @curl_setopt( $this -> ch, CURLOPT_URL, $params['url']); @curl_setopt ( $this -> ch , CURLOPT_SSL_VERIFYPEER, 0 ); @curl_setopt ( $this -> ch , CURLOPT_SSL_VERIFYHOST, 0 ); if (isset($params['login']) & isset($params['password'])) @curl_setopt($this -> ch ,CURLOPT_USERPWD,$params['login'].':'.$params['password']); @curl_setopt ( $this -> ch , CURLOPT_TIMEOUT, $params['timeout']); } /** * Make curl request * * @return array 'header','body','curl_error','http_code','last_url' */ public function exec() { $response = curl_exec($this->ch); $error = curl_error($this->ch); $result = array( 'header' => '', 'body' => '', 'curl_error' => '', 'http_code' => '', 'last_url' => ''); if ( $error != "" ) { $result['curl_error'] = $error; return $result; } $header_size = curl_getinfo($this->ch,CURLINFO_HEADER_SIZE); $result['header'] = substr($response, 0, $header_size); $result['body'] = substr( $response, $header_size ); $result['http_code'] = curl_getinfo($this -> ch,CURLINFO_HTTP_CODE); $result['last_url'] = curl_getinfo($this -> ch,CURLINFO_EFFECTIVE_URL); return $result; }}?>

Example of use:

1 8 years ago

-1 5 years ago

-1 11 years ago

if ($result['http_code']!='200') throw new Exception("HTTP Code =".$result['http_code']); if (!$result['body']) throw new Exception("Body of file is empty"); ............... } catch (Exception $e) { echo $e->getMessage(); }?>

Jrgen Tjern

If you've got problems with curl_exec not working, you should rather check curl_errno andcurl_error than using commandline curl, like so:

(since this is easier, and also allows you to check for errors runtime, which is a vitalpart of any well-design piece of code. ;)

Florian Holzhauer

If you use apache2+mod_chroot with php5, add

LoadFile /lib/libnss_dns.so.2

to your mod_chroot config - this should resolver problems.

sharky at im dot net dot ua

If You want to hide result which return curl_exec

Use bufeered output.For example:-----------------------$ch = curl_init();curl_setopt($ch, CURLOPT_URL,"http://url.com/index.php");curl_setopt($ch, CURLOPT_POST, 1);curl_setopt($ch, CURLOPT_POSTFIELDS, "a=3&b=5");//--- Start bufferingob_start();curl_exec ($ch);//--- End buffering and clean output



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-2 1 year ago

0 3 years ago

curl_close ($ch);------------------

maybe it help somebody :))

----------Best Regards Sharky

ggarmento at yahoo dot com

I am a more tenacious designer than I am a code monkey; but the sample curl function endedan exhaustive four hour search.

I needed to execute a Search URL in a WordPress 3 page in order to return some Real Estateresults and my "unnamed" shared server had fopen and load() shut down.

The code below was the only code in the whole page; the WP3 theme wrapped around the searchresults like a mother and child at feeding time.

[code]

[code]

Whoot!!

petermiller1986[nospam] at gmail dot com

so far i have not come across any code or library file that willextract cookie information from a http header, so i've writtenone.

there are two files:file1.php - acts as server and sets the cookiesfile2.php - acts as browser and retrieves the cookies set by file1

/*****file1.php****/



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/*****file2.php****/

0 4 years ago

4 years ago

{$matches[expiry_second][$i]}

{$matches[expiry_zone][$i]} "; $i++;}$table_string .= "";echo $table_string;?>/****end file2.php**/

i based this code on the following http header:(obtained by going: echo $server_output; in file2.php)

HTTP/1.1 200 OK Date: Thu, 30 Jul 2009 07:10:07 GMTServer: Apache/2.2.11 (Win32) DAV/2 mod_ssl/2.2.11OpenSSL/0.9.8i PHP/5.2.9 X-Powered-By: PHP/5.2.9Set-Cookie: cookie1=cookie+1+data; expires=Wed,29-Jul-2009 03:23:27 GMT Set-Cookiecookie2=cookie+2+data; expires=Wed, 29-Jul-2009 03:23:27GMT Set-Cookie: cookie3=cookie+3+data; expires=Wed,29-Jul-2009 03:23:27 GMT Content-Length: 196Content-Type: text/html

if your header differs from this one then $pattern in file2.phpwill need to be modified accordingly. hopefully this code will saveyou a lot of time though!

Mark Omohundro, ajamyajax.com

Just a simple curl_exec() example with a twist: I use the familiar http response status codereturned from curl_getinfo() to put either data, or a custom error message + curl_error()into a single string. I find this useful when the response ends up in a or tag.

lmshad at wp dot pl dot foo dot bar



11 of 16 11/07/2013 12:02

CurlTool::downloadFile('http://download.gadu-gadu.pl/gg77.exe', 'c:/');

} $content = preg_replace('#\n+#', ' ', $content); $content = preg_replace('#\s+#', ' ', $content); return $content; } public static function downloadFile($url, $fileName, $verbose = false) { if (($curl = curl_init($url)) == false) { throw new Exception("curl_init error for url $url."); } if (self::$proxyCount > 0) { $proxy = self::$proxyServers[self::$currentProxyIndex++ % self::$proxyCount]; curl_setopt($curl, CURLOPT_PROXY, $proxy); if ($verbose === true) { echo "Downloading $url [Proxy: $proxy] ... "; } } else if ($verbose === true) { echo "Downloading $url ... "; } curl_setopt_array($curl, self::$options); if (substr($fileName, -1) == '/') { $targetDir = $fileName; $fileName = tempnam(sys_get_temp_dir(), 'c_'); } if (($fp = fopen($fileName, "wb")) === false) { throw new Exception("fopen error for filename $fileName"); } curl_setopt($curl, CURLOPT_FILE, $fp); curl_setopt($curl, CURLOPT_BINARYTRANSFER, true); if (curl_exec($curl) === false) { fclose($fp); unlink($fileName); throw new Exception("curl_exec error for url $url."); } elseif (isset($targetDir)) { $eurl = curl_getinfo($curl, CURLINFO_EFFECTIVE_URL); preg_match('#^.*/(.+)$#', $eurl, $match); fclose($fp); rename($fileName, "$targetDir{$match[1]}"); $fileName = "$targetDir{$match[1]}"; } else { fclose($fp); } curl_close($curl); if ($verbose === true) { echo "Done.\n"; } return $fileName; } }



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0 5 years ago

0 5 years ago

0 5 years ago

alan at forsyth dot cz

Great class Roman - just one fix:

Replace the following line:

with this:

CURL automatically creates the host parameter (since it is required for HTTP/1.1 requests),so you don't need to set it. But if you created a custom host parameter, the above bug wouldcause a '400 Bad Request' response due to invalid host specified.

Also when copying and pasting the class code, make sure that no line breaks occur (forexample in the $header and $user_agent definitions etc.). It will still be valid PHP, butthe HTTP request will not be valid, and you may get a '400 Bad Request' response from theserver.

It took me a little playing around with an HTTP Sniffer before I finally got an HTTP POSTrequest fully working!

Thanks,Alan

me at lawrencemok dot com

Note that when you use CURL to POST things....e.g:

curl_setopt($ch, CURLOPT_POSTFIELDS, "string=This is a string");

The data part (e.g. "This is a string") inside the 3rd parameter should be applied withurlencode()

Otherwise, if you intend to send a string like "%2F", you will end up with a "/" on thereceiving end, which can cause troubles. (e.g. serialize() data cannot be unserialize()becase of the change in string length).

shanto at ultimawebsolutions dot com

A function to retrieve the status code of an HTTP request using CURL:

function getHttpResponseCode($url) { $ch = @curl_init($url); @curl_setopt($ch, CURLOPT_HEADER, TRUE); @curl_setopt($ch, CURLOPT_NOBODY, TRUE); @curl_setopt($ch, CURLOPT_FOLLOWLOCATION, FALSE); @curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); $status = array(); $response = @curl_exec($ch); preg_match('/HTTP\/.* ([0-9]+) .*/', $response, $status); return $status[1];



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0 5 years ago

0 6 years ago

0 6 years ago

0 10 years ago

test at test dot com

If you see a "0" at the end of the output, you might want to switch to HTTP/1.0:

curl_setopt($ch, CURLOPT_HTTP_VERSION, 1.0);

lukasl at ackleymedia dot com

Thank you for sharing this. I was wondering why my result was 1.

To get around this in a safe way, this is how I check if the result is valid.

$ch = curl_init(); /// initialize a cURL sessioncurl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);$xmlResponse = curl_exec ($ch);curl_close ($ch);

if (!is_string($xmlResponse) || !strlen($xmlResponse)) { return $this->_set_error( "Failure Contacting Server" );} else { return $xmlResponse;}

Anonymous

Be careful when using curl_exec() and the CURLOPT_RETURNTRANSFER option. According to themanual and assorted documentation:Set CURLOPT_RETURNTRANSFER to TRUE to return the transfer as a string of the return value ofcurl_exec() instead of outputting it out directly.

When retrieving a document with no content (ie. 0 byte file), curl_exec() will returnbool(true), not an empty string. I've not seen any mention of this in the manual.

Example code to reproduce this:

sybren at thirdtower dot com

If you see a "0" at the end of the output, you might want to switch to HTTP/1.0:



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-1 2 years ago

-2 8 years ago

-3 8 years ago

slash.dash.dash.com

[I was having a problem with] URLs not resolving I also tried cURL on the command line for anon-SSL request. It failed. wget failed. Then, I realized my ID is 10T.

Remember kids, if you go from DHCP to static, update your DNS server list!

landon at phazeforward dot com

If your curl installation is not compiled with SSL support you will beat your head against awall when trying to figure out why curl_exec() is failing to fail or do anything else ...

If you run into a situation where your call to curl_exec is not returning anything youshould try the same call with the command line curl

fifa_2k [-at-] sina [-dot-] com

With php 4.3.9 or higher,you can upload file to ftp server on win32 system

lower version php (I tried on php 4.3.3) on win32 can't do this and may cause php crash evenyou use CURLOPT_READFUNCTION.

Copyright 2001-2013 The PHP GroupAll rights reserved.



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php_ curl_exec - manual

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