Can PHP cURL retrieve response headers AND body in a single request

Question

Is there any way to get both headers and body for a cURL request using PHP  I found that this option   curl setopt  ch  CURLOPT HEADER  true     is going to return the body plus headers  but then I need to parse it to get the body  Is there any way to get both in a more usable  and secure  way   Note that for  single request  I mean avoiding issuing a HEAD request prior of GET POST

User · Answer

The problem with many answers here is that "\r\n\r\n" can legitimately appear in the body of the html, so you can't be sure that you're splitting headers correctly.

It seems that the only way to store headers separately with one call to curl_exec is to use a callback as is suggested above in https://stackoverflow.com/a/25118032/3326494

And then to (reliably) get just the body of the request, you would need to pass the value of the Content-Length header to substr() as a negative start value.

User · Answer

Try this if you are using GET   curl   curl init  url    curl setopt array  curl  array      CURLOPT URL   gt   url      CURLOPT RETURNTRANSFER   gt  true      CURLOPT ENCODING   gt   quot  quot       CURLOPT MAXREDIRS   gt  10      CURLOPT TIMEOUT   gt  30      CURLOPT HTTP VERSION   gt  CURL HTTP VERSION 1 1      CURLOPT CUSTOMREQUEST   gt   quot GET quot       CURLOPT HTTPHEADER   gt  array           quot Cache-Control  no-cache quot               response   curl exec  curl   curl close  curl

User · Answer

One solution to this was posted in the PHP documentation comments  http   www php net manual en function curl-exec php 80442 Code example   ch   curl init    curl setopt  ch  CURLOPT RETURNTRANSFER  1   curl setopt  ch  CURLOPT HEADER  1            response   curl exec  ch       Then  after your curl exec call   header size   curl getinfo  ch  CURLINFO HEADER SIZE    header   substr  response  0   header size    body   substr  response   header size    Warning  As noted in the comments below  this may not be reliable when used with proxy servers or when handling certain types of redirects   Geoffrey s answer may handle these more reliably

User · Answer

Just set options     CURLOPT HEADER  0 CURLOPT RETURNTRANSFER  1   and use curl getinfo with CURLINFO HTTP CODE  or no opt param and you will have an associative array with all the informations you want   More at   http   php net manual fr function curl-getinfo php

User · Answer

If you specifically want the Content-Type  there s a special cURL option to retrieve it    ch   curl init  url   curl setopt  ch  CURLOPT RETURNTRANSFER  1    response   curl exec  ch    content type   curl getinfo  ch  CURLINFO CONTENT TYPE

User · Answer

Curl has a built in option for this  called CURLOPT HEADERFUNCTION  The value of this option must be the name of a callback function  Curl will pass the header  and the header only   to this callback function  line-by-line  so the function will be called for each header line  starting from the top of the header section   Your callback function then can do anything with it  and must return the number of bytes of the given line   Here is a tested working code   function HandleHeaderLine   curl   header line         echo   lt br gt YEAH     header line     or do whatever     return strlen  header line        ch   curl init    curl setopt  ch  CURLOPT URL   http   www google com    curl setopt  ch  CURLOPT RETURNTRANSFER  1   curl setopt  ch  CURLOPT HEADERFUNCTION   HandleHeaderLine     body   curl exec  ch      The above works with everything  different protocols and proxies too  and you dont need to worry about the header size  or set lots of different curl options   P S   To handle the header lines with an object method  do this   curl setopt  ch  CURLOPT HEADERFUNCTION  array  amp  object   methodName

User · Answer

If you don t really need to use curl    body   file get contents  http   example com    var export  http response header   var export  body     Which outputs  array     0   gt   HTTP 1 0 200 OK     1   gt   Accept-Ranges  bytes     2   gt   Cache-Control  max-age 604800     3   gt   Content-Type  text html     4   gt   Date  Tue  24 Feb 2015 20 37 13 GMT     5   gt   Etag   359670651      6   gt   Expires  Tue  03 Mar 2015 20 37 13 GMT     7   gt   Last-Modified  Fri  09 Aug 2013 23 54 35 GMT     8   gt   Server  ECS  cpm F9D5      9   gt   X-Cache  HIT     10   gt   x-ec-custom-error  1     11   gt   Content-Length  1270     12   gt   Connection  close      lt  doctype html gt   lt html gt   lt head gt       lt title gt Example Domain lt  title gt       See http   php net manual en reserved variables httpresponseheader php

User · Answer

Return response headers with a reference parameter    lt  php  data array  device token   gt  5641c5b10751c49c07ceb4                content   gt      test                 rtn curl to host  POST    http   test com send by device token   array     data   resp headers   echo  rtn  var export  resp headers    function curl to host  method   url   headers   data   amp  resp headers             ch curl init  url             curl setopt  ch  CURLOPT CONNECTTIMEOUT   GLOBALS  POST TO HOST LINE TIMEOUT    GLOBALS  POST TO HOST LINE TIMEOUT   5             curl setopt  ch  CURLOPT TIMEOUT   GLOBALS  POST TO HOST TOTAL TIMEOUT    GLOBALS  POST TO HOST TOTAL TIMEOUT   20             curl setopt  ch  CURLOPT RETURNTRANSFER  true             curl setopt  ch  CURLOPT FOLLOWLOCATION  false             curl setopt  ch  CURLOPT HEADER  1              if   method   POST                 curl setopt  ch  CURLOPT POST  true                 curl setopt  ch  CURLOPT POSTFIELDS  http build query  data                             foreach   headers as  k  gt  v                      headers  k  str replace       -   ucwords strtolower str replace            k           v                                curl setopt  ch  CURLOPT HTTPHEADER   headers              rtn curl exec  ch             curl close  ch               rtn explode   r n r nHTTP     rtn  2        to deal with  HTTP 1 1 100 Continue r n r nHTTP 1 1 200 OK    r n r n     header            rtn  count  rtn  gt 1    HTTP         array pop  rtn             list  str resp headers   rtn  explode   r n r n    rtn  2               str resp headers explode   r n    str resp headers             array shift  str resp headers        get rid of  HTTP 1 1 200 OK             resp headers array              foreach   str resp headers as  k  gt  v                      v explode        v  2                       resp headers  v 0    v 1                                  return  rtn               gt

User · Answer

Here is my contribution to the debate     This returns a single array with the data separated and the headers listed  This works on the basis that CURL will return a headers chunk   blank line   data  curl setopt  ch  CURLOPT HEADER  1      we need this to get headers back curl setopt  ch  CURLOPT RETURNTRANSFER  1   curl setopt  ch  CURLOPT VERBOSE  true        output contains the output string  output   curl exec  ch     lines   explode   n   output     out   array     headers   true   foreach   lines as  l        l   trim  l        if   headers  amp  amp   empty  l            if  strpos  l  HTTP       false                p   explode      l                out  Headers    Status     trim  p 1              else                p   explode      l                out  Headers    p 0     trim  p 1                    elseif   empty  l              out  Data      l             if  empty  l             headers   false

User · Answer

Just in case you can t   don t use CURLOPT HEADERFUNCTION or other solutions    nextCheck   function  body        return   body  amp  amp  strpos  body   HTTP        0         headers   body    explode   r n r n    result  2   if   nextCheck  body         do             headers   body    explode   r n r n    body  2         while   nextCheck  body

User · Answer

curl setopt  ch  CURLOPT RETURNTRANSFER  1   curl setopt  ch  CURLOPT VERBOSE  1   curl setopt  ch  CURLOPT HEADER  1     parts   explode   r n r nHTTP     response    parts    count  parts   gt  1    HTTP         array pop  parts   list  headers   body    explode   r n r n    parts  2     Works with HTTP 1 1 100 Continue before other headers   If you need work with buggy servers which sends only LF instead of CRLF as line breaks you can use preg split as follows   curl setopt  ch  CURLOPT RETURNTRANSFER  1   curl setopt  ch  CURLOPT VERBOSE  1   curl setopt  ch  CURLOPT HEADER  1     parts   preg split    r  n r  nHTTP  u    response    parts    count  parts   gt  1    HTTP         array pop  parts   list  headers   body    preg split    r  n r  n u    parts  2

User · Answer

Many of the other solutions offered this thread are not doing this correctly    Splitting on  r n r n is not reliable when CURLOPT FOLLOWLOCATION is on or when the server responds with a 100 code  Not all servers are standards compliant and transmit just a  n for new lines  Detecting the size of the headers via CURLINFO HEADER SIZE is also not always reliable  especially when proxies are used or in some of the same redirection scenarios    The most correct method is using CURLOPT HEADERFUNCTION   Here is a very clean method of performing this using PHP closures  It also converts all headers to lowercase for consistent handling across servers and HTTP versions   This version will retain duplicated headers  This complies with RFC822 and RFC2616  please do not suggest edits to make use of the mb  string functions  it is incorrect    ch   curl init     headers       curl setopt  ch  CURLOPT URL   url   curl setopt  ch  CURLOPT RETURNTRANSFER  1       this function is called by curl for each header received curl setopt  ch  CURLOPT HEADERFUNCTION    function  curl   header  use   amp  headers           len   strlen  header        header   explode       header  2       if  count  header   lt  2     ignore invalid headers       return  len        headers strtolower trim  header 0         trim  header 1         return  len           data   curl exec  ch   print r  headers

User · Answer

My way is   response   curl exec  ch    x   explode   r n r n    v  3    header http parse headers  x 0    if   header   Response Code    100     use the other  header       header http parse headers  x 1         body  x 2    else       body  x 1       If needed apply a for loop and remove the explode limit

User · Answer

is this what are you looking to   curl setopt  ch  CURLOPT HTTPHEADER  array  Expect       response   curl exec  ch    list  header   body    explode   r n r n    response  2

[php] Can PHP cURL retrieve response headers AND body in a single request?

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