Styjun

Domain expired, GoDaddy holds it and is asking more money

Is it legal to have the "// (c) 2019 John Smith" header in all files when there are hundreds of contributors?

Patience, young "Padovan"

What to wear for invited talk in Canada

What is the offset in a seaplane's hull?

Information to fellow intern about hiring?

Is this food a bread or a loaf?

Are objects structures and/or vice versa?

How to deal with fear of taking dependencies

Pristine Bit Checking

What does 'script /dev/null' do?

What is the command to reset a PC without deleting any files

Is every set a filtered colimit of finite sets?

Is there a way to make member function NOT callable from constructor?

How can I add custom success page

How did the USSR manage to innovate in an environment characterized by government censorship and high bureaucracy?

Was there ever an axiom rendered a theorem?

What do the Banks children have against barley water?

Are white and non-white police officers equally likely to kill black suspects?

"My colleague's body is amazing"

What do you call something that goes against the spirit of the law, but is legal when interpreting the law to the letter?

Shall I use personal or official e-mail account when registering to external websites for work purpose?

Is "plugging out" electronic devices an American expression?

What happens when a metallic dragon and a chromatic dragon mate?

How to post data in PHP using file_get_contents?

How to HTTP POST a XML File using PHP without cURL?How to send POST data through PHPSending post data along with file_get_contents()Can file_get_contents be used to post?How to fix 'file_get_contents(): Content-type not specified…'?PHP file_get_contents() and setting request headersAdding subscribers to a list using Mailchimp's API v3Need response body of HTTP 500 with file_get_contents (PHP)Using proxy with file_get_contentsSend AJAX-like post request using PHP onlyHow can I prevent SQL injection in PHP?JavaScript post request like a form submitPHP: Delete an element from an arrayPUT vs. POST in RESTHow do I get PHP errors to display?How Do You Parse and Process HTML/XML in PHP?Reference — What does this symbol mean in PHP?How does PHP 'foreach' actually work?Why shouldn't I use mysql_* functions in PHP?How are parameters sent in an HTTP POST request?

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;

270

139

I'm using PHP's function file_get_contents() to fetch contents of a URL and then I process headers through the variable $http_response_header.

Now the problem is that some of the URLs need some data to be posted to the URL (for example, login pages).

How do I do that?

I realize using stream_context I may be able to do that but I am not entirely clear.

Thanks.

php http http-post file-get-contents

share|improve this question

edited Nov 3 '12 at 10:46

dnlcrl

3,01732538

asked Mar 15 '10 at 5:27

Paras ChopraParas Chopra

1,85441617

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  php.net/manual/en/function.stream-context-create.php#89080
  
  – Ben
  Jul 28 '14 at 20:56
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  This should be upvoted infinitely. There is no reason to use Curl/Guzzle or any other fancy library if you have raw PHP functionality that do the job.
  
  – Omar Abid
  Mar 26 '15 at 21:03
  

  
  
  
  

add a comment | 

270

139

I'm using PHP's function file_get_contents() to fetch contents of a URL and then I process headers through the variable $http_response_header.

Now the problem is that some of the URLs need some data to be posted to the URL (for example, login pages).

How do I do that?

I realize using stream_context I may be able to do that but I am not entirely clear.

Thanks.

php http http-post file-get-contents

share|improve this question

edited Nov 3 '12 at 10:46

dnlcrl

3,01732538

asked Mar 15 '10 at 5:27

Paras ChopraParas Chopra

1,85441617

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  php.net/manual/en/function.stream-context-create.php#89080
  
  – Ben
  Jul 28 '14 at 20:56
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  This should be upvoted infinitely. There is no reason to use Curl/Guzzle or any other fancy library if you have raw PHP functionality that do the job.
  
  – Omar Abid
  Mar 26 '15 at 21:03
  

  
  
  
  

add a comment | 

I'm using PHP's function file_get_contents() to fetch contents of a URL and then I process headers through the variable $http_response_header.

Now the problem is that some of the URLs need some data to be posted to the URL (for example, login pages).

How do I do that?

I realize using stream_context I may be able to do that but I am not entirely clear.

Thanks.

php http http-post file-get-contents

share|improve this question

edited Nov 3 '12 at 10:46

dnlcrl

3,01732538

asked Mar 15 '10 at 5:27

Paras ChopraParas Chopra

1,85441617

share|improve this question

edited Nov 3 '12 at 10:46

dnlcrl

3,01732538

asked Mar 15 '10 at 5:27

Paras ChopraParas Chopra

1,85441617

share|improve this question

edited Nov 3 '12 at 10:46

dnlcrl

3,01732538

asked Mar 15 '10 at 5:27

Paras ChopraParas Chopra

1,85441617

edited Nov 3 '12 at 10:46

dnlcrl

3,01732538

edited Nov 3 '12 at 10:46

dnlcrl

3,01732538

asked Mar 15 '10 at 5:27

Paras ChopraParas Chopra

1,85441617

asked Mar 15 '10 at 5:27

Paras ChopraParas Chopra

1,85441617

3 Answers
3

active

oldest

votes

541

Sending an HTTP POST request using file_get_contents is not that hard, actually : as you guessed, you have to use the $context parameter.

There's an example given in the PHP manual, at this page : HTTP context options (quoting) :

$postdata = http_build_query(
 array(
 'var1' => 'some content',
 'var2' => 'doh'
 )
);

$opts = array('http' =>
 array(
 'method' => 'POST',
 'header' => 'Content-Type: application/x-www-form-urlencoded',
 'content' => $postdata
 )
);

$context = stream_context_create($opts);

$result = file_get_contents('http://example.com/submit.php', false, $context);

Basically, you have to create a stream, with the right options (there is a full list on that page), and use it as the third parameter to file_get_contents -- nothing more ;-)

As a sidenote : generally speaking, to send HTTP POST requests, we tend to use curl, which provides a lot of options an all -- but streams are one of the nice things of PHP that nobody knows about... too bad...

share|improve this answer

edited Mar 22 at 1:39

Volomike

14k1882156

answered Mar 15 '10 at 5:44

Pascal MARTINPascal MARTIN

341k59589616

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Thanks. I am guessing I can insert the contents from $_POST into $postdata if I need to pass same POST params to the requested page?
  
  – Paras Chopra
  Mar 15 '10 at 6:49
  

  
  
  
  


• 
  
  
  

  
  6
  

  
  
  
  
  
  

  
  
  I suppose you can do something like that ; but content must not be a PHP array : it has to be a querystring (i.e. it must has this format : param1=value1&param2=value2&param3=value3 ) ;; which means you'll probably have to use http_build_query($_POST)
  
  – Pascal MARTIN
  Mar 15 '10 at 6:52
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Wonderful! I was looking for a way to pass POST data to another page which is achievable by doing $postdata = http_build_query($_POST).
  
  – Liam Newmarch
  Nov 30 '11 at 12:20
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  intresting enough this does not work for me at all i been tryiung it for a few hours and all my requets get turned into get querys
  
  – WojonsTech
  Oct 2 '12 at 7:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What if the parameters value are not strings but arrays or hashes etc ?
  
  – oldergod
  Jun 10 '13 at 6:17
  

  
  
  
  

 | 
show 6 more comments

18

An alternative, you can also use fopen

$params = array('http' => array(
 'method' => 'POST',
 'content' => 'toto=1&tata=2'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if (!$fp)

 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if ($response === false) 

 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

answered Jun 9 '13 at 19:29

MacbricMacbric

38439

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  For some reason, this worked for me, but the PHP official example did not. +1 for the toto=1&tata=2 as well. I didn't use the fopen, however.
  
  – Michael Yaworski
  Jul 17 '15 at 19:09
  
  

  
  
  
  


• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  @Ġiĺàɗ We don't call people 'noob' here. This is a friendly warning against such.
  
  – Daedalus
  Jan 26 '16 at 10:35
  

  
  
  
  

add a comment | 

0

$sUrl = 'http://www.linktopage.com/login/';
$params = array('http' => array(
 'method' => 'POST',
 'content' => 'username=admin195&password=d123456789'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if(!$fp) 
 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if($response === false) 
 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

edited Sep 21 '18 at 10:20

step

6212929

answered Apr 12 '15 at 17:47

user2525449user2525449

141119

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Please, try to provide an elaborated answer instead of simply copying/pasting code.
  
  – Felipe Leão
  Apr 6 '18 at 18:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also this is unnecessarily complicated. You can use file_get_contents instead of fopen + stream_get_contents. And you are not even closing the "file". See the accepted answer by @PascalMARTIN.
  
  – Martin Prikryl
  Sep 21 '18 at 11:20
  
  

  
  
  
  

add a comment | 

protected by Community♦ Oct 25 '13 at 12:52

Thank you for your interest in this question.
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).



Would you like to answer one of these unanswered questions instead?

541

Sending an HTTP POST request using file_get_contents is not that hard, actually : as you guessed, you have to use the $context parameter.

There's an example given in the PHP manual, at this page : HTTP context options (quoting) :

$postdata = http_build_query(
 array(
 'var1' => 'some content',
 'var2' => 'doh'
 )
);

$opts = array('http' =>
 array(
 'method' => 'POST',
 'header' => 'Content-Type: application/x-www-form-urlencoded',
 'content' => $postdata
 )
);

$context = stream_context_create($opts);

$result = file_get_contents('http://example.com/submit.php', false, $context);

Basically, you have to create a stream, with the right options (there is a full list on that page), and use it as the third parameter to file_get_contents -- nothing more ;-)

As a sidenote : generally speaking, to send HTTP POST requests, we tend to use curl, which provides a lot of options an all -- but streams are one of the nice things of PHP that nobody knows about... too bad...

share|improve this answer

edited Mar 22 at 1:39

Volomike

14k1882156

answered Mar 15 '10 at 5:44

Pascal MARTINPascal MARTIN

341k59589616

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Thanks. I am guessing I can insert the contents from $_POST into $postdata if I need to pass same POST params to the requested page?
  
  – Paras Chopra
  Mar 15 '10 at 6:49
  

  
  
  
  


• 
  
  
  

  
  6
  

  
  
  
  
  
  

  
  
  I suppose you can do something like that ; but content must not be a PHP array : it has to be a querystring (i.e. it must has this format : param1=value1&param2=value2&param3=value3 ) ;; which means you'll probably have to use http_build_query($_POST)
  
  – Pascal MARTIN
  Mar 15 '10 at 6:52
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Wonderful! I was looking for a way to pass POST data to another page which is achievable by doing $postdata = http_build_query($_POST).
  
  – Liam Newmarch
  Nov 30 '11 at 12:20
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  intresting enough this does not work for me at all i been tryiung it for a few hours and all my requets get turned into get querys
  
  – WojonsTech
  Oct 2 '12 at 7:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What if the parameters value are not strings but arrays or hashes etc ?
  
  – oldergod
  Jun 10 '13 at 6:17
  

  
  
  
  

 | 
show 6 more comments

541

Sending an HTTP POST request using file_get_contents is not that hard, actually : as you guessed, you have to use the $context parameter.

There's an example given in the PHP manual, at this page : HTTP context options (quoting) :

$postdata = http_build_query(
 array(
 'var1' => 'some content',
 'var2' => 'doh'
 )
);

$opts = array('http' =>
 array(
 'method' => 'POST',
 'header' => 'Content-Type: application/x-www-form-urlencoded',
 'content' => $postdata
 )
);

$context = stream_context_create($opts);

$result = file_get_contents('http://example.com/submit.php', false, $context);

Basically, you have to create a stream, with the right options (there is a full list on that page), and use it as the third parameter to file_get_contents -- nothing more ;-)

As a sidenote : generally speaking, to send HTTP POST requests, we tend to use curl, which provides a lot of options an all -- but streams are one of the nice things of PHP that nobody knows about... too bad...

share|improve this answer

edited Mar 22 at 1:39

Volomike

14k1882156

answered Mar 15 '10 at 5:44

Pascal MARTINPascal MARTIN

341k59589616

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Thanks. I am guessing I can insert the contents from $_POST into $postdata if I need to pass same POST params to the requested page?
  
  – Paras Chopra
  Mar 15 '10 at 6:49
  

  
  
  
  


• 
  
  
  

  
  6
  

  
  
  
  
  
  

  
  
  I suppose you can do something like that ; but content must not be a PHP array : it has to be a querystring (i.e. it must has this format : param1=value1&param2=value2&param3=value3 ) ;; which means you'll probably have to use http_build_query($_POST)
  
  – Pascal MARTIN
  Mar 15 '10 at 6:52
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Wonderful! I was looking for a way to pass POST data to another page which is achievable by doing $postdata = http_build_query($_POST).
  
  – Liam Newmarch
  Nov 30 '11 at 12:20
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  intresting enough this does not work for me at all i been tryiung it for a few hours and all my requets get turned into get querys
  
  – WojonsTech
  Oct 2 '12 at 7:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What if the parameters value are not strings but arrays or hashes etc ?
  
  – oldergod
  Jun 10 '13 at 6:17
  

  
  
  
  

 | 
show 6 more comments

Sending an HTTP POST request using file_get_contents is not that hard, actually : as you guessed, you have to use the $context parameter.

There's an example given in the PHP manual, at this page : HTTP context options (quoting) :

$postdata = http_build_query(
 array(
 'var1' => 'some content',
 'var2' => 'doh'
 )
);

$opts = array('http' =>
 array(
 'method' => 'POST',
 'header' => 'Content-Type: application/x-www-form-urlencoded',
 'content' => $postdata
 )
);

$context = stream_context_create($opts);

$result = file_get_contents('http://example.com/submit.php', false, $context);

Basically, you have to create a stream, with the right options (there is a full list on that page), and use it as the third parameter to file_get_contents -- nothing more ;-)

As a sidenote : generally speaking, to send HTTP POST requests, we tend to use curl, which provides a lot of options an all -- but streams are one of the nice things of PHP that nobody knows about... too bad...

share|improve this answer

edited Mar 22 at 1:39

Volomike

14k1882156

answered Mar 15 '10 at 5:44

Pascal MARTINPascal MARTIN

341k59589616

$postdata = http_build_query(
 array(
 'var1' => 'some content',
 'var2' => 'doh'
 )
);

$opts = array('http' =>
 array(
 'method' => 'POST',
 'header' => 'Content-Type: application/x-www-form-urlencoded',
 'content' => $postdata
 )
);

$context = stream_context_create($opts);

$result = file_get_contents('http://example.com/submit.php', false, $context);

share|improve this answer

edited Mar 22 at 1:39

Volomike

14k1882156

answered Mar 15 '10 at 5:44

Pascal MARTINPascal MARTIN

341k59589616

edited Mar 22 at 1:39

Volomike

14k1882156

edited Mar 22 at 1:39

Volomike

14k1882156

answered Mar 15 '10 at 5:44

Pascal MARTINPascal MARTIN

341k59589616

answered Mar 15 '10 at 5:44

Pascal MARTINPascal MARTIN

341k59589616

18

An alternative, you can also use fopen

$params = array('http' => array(
 'method' => 'POST',
 'content' => 'toto=1&tata=2'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if (!$fp)

 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if ($response === false) 

 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

answered Jun 9 '13 at 19:29

MacbricMacbric

38439

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  For some reason, this worked for me, but the PHP official example did not. +1 for the toto=1&tata=2 as well. I didn't use the fopen, however.
  
  – Michael Yaworski
  Jul 17 '15 at 19:09
  
  

  
  
  
  


• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  @Ġiĺàɗ We don't call people 'noob' here. This is a friendly warning against such.
  
  – Daedalus
  Jan 26 '16 at 10:35
  

  
  
  
  

add a comment | 

18

An alternative, you can also use fopen

$params = array('http' => array(
 'method' => 'POST',
 'content' => 'toto=1&tata=2'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if (!$fp)

 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if ($response === false) 

 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

answered Jun 9 '13 at 19:29

MacbricMacbric

38439

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  For some reason, this worked for me, but the PHP official example did not. +1 for the toto=1&tata=2 as well. I didn't use the fopen, however.
  
  – Michael Yaworski
  Jul 17 '15 at 19:09
  
  

  
  
  
  


• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  @Ġiĺàɗ We don't call people 'noob' here. This is a friendly warning against such.
  
  – Daedalus
  Jan 26 '16 at 10:35
  

  
  
  
  

add a comment | 

An alternative, you can also use fopen

$params = array('http' => array(
 'method' => 'POST',
 'content' => 'toto=1&tata=2'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if (!$fp)

 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if ($response === false) 

 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

answered Jun 9 '13 at 19:29

MacbricMacbric

38439

$params = array('http' => array(
 'method' => 'POST',
 'content' => 'toto=1&tata=2'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if (!$fp)

 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if ($response === false) 

 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

answered Jun 9 '13 at 19:29

MacbricMacbric

38439

answered Jun 9 '13 at 19:29

MacbricMacbric

38439

answered Jun 9 '13 at 19:29

MacbricMacbric

38439

0

$sUrl = 'http://www.linktopage.com/login/';
$params = array('http' => array(
 'method' => 'POST',
 'content' => 'username=admin195&password=d123456789'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if(!$fp) 
 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if($response === false) 
 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

edited Sep 21 '18 at 10:20

step

6212929

answered Apr 12 '15 at 17:47

user2525449user2525449

141119

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Please, try to provide an elaborated answer instead of simply copying/pasting code.
  
  – Felipe Leão
  Apr 6 '18 at 18:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also this is unnecessarily complicated. You can use file_get_contents instead of fopen + stream_get_contents. And you are not even closing the "file". See the accepted answer by @PascalMARTIN.
  
  – Martin Prikryl
  Sep 21 '18 at 11:20
  
  

  
  
  
  

add a comment | 

0

$sUrl = 'http://www.linktopage.com/login/';
$params = array('http' => array(
 'method' => 'POST',
 'content' => 'username=admin195&password=d123456789'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if(!$fp) 
 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if($response === false) 
 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

edited Sep 21 '18 at 10:20

step

6212929

answered Apr 12 '15 at 17:47

user2525449user2525449

141119

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Please, try to provide an elaborated answer instead of simply copying/pasting code.
  
  – Felipe Leão
  Apr 6 '18 at 18:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also this is unnecessarily complicated. You can use file_get_contents instead of fopen + stream_get_contents. And you are not even closing the "file". See the accepted answer by @PascalMARTIN.
  
  – Martin Prikryl
  Sep 21 '18 at 11:20
  
  

  
  
  
  

add a comment | 

$sUrl = 'http://www.linktopage.com/login/';
$params = array('http' => array(
 'method' => 'POST',
 'content' => 'username=admin195&password=d123456789'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if(!$fp) 
 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if($response === false) 
 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

edited Sep 21 '18 at 10:20

step

6212929

answered Apr 12 '15 at 17:47

user2525449user2525449

141119

$sUrl = 'http://www.linktopage.com/login/';
$params = array('http' => array(
 'method' => 'POST',
 'content' => 'username=admin195&password=d123456789'
));

$ctx = stream_context_create($params);
$fp = @fopen($sUrl, 'rb', false, $ctx);
if(!$fp) 
 throw new Exception("Problem with $sUrl, $php_errormsg");


$response = @stream_get_contents($fp);
if($response === false) 
 throw new Exception("Problem reading data from $sUrl, $php_errormsg");

share|improve this answer

edited Sep 21 '18 at 10:20

step

6212929

answered Apr 12 '15 at 17:47

user2525449user2525449

141119

edited Sep 21 '18 at 10:20

step

6212929

edited Sep 21 '18 at 10:20

step

6212929

answered Apr 12 '15 at 17:47

user2525449user2525449

141119

answered Apr 12 '15 at 17:47

user2525449user2525449

141119