How to use CURL via a proxy

Question

I am looking to set curl to use a proxy server  The url is provided by an html form  which has not been a problem  Without the proxy it works fine  I have found code on this and other sites  but they do not work  Any help in finding the correct solution would be much appreciated  I feel that the bellow are close  but that I am missing something  Thank You   The bellow code I adapted from here http   www webmasterworld com forum88 10572 htm but it returns an error message about a missing T VARIABLE on line 12    lt     url      POST 1     ch   curl init    curl setopt  ch  CURLOPT URL  url   curl setopt  ch  CURLOPT HTTPPROXYTUNNEL  0   curl setopt  ch  CURLOPT PROXY   66 96 200 39 80    curl setopt  ch  CURLOPT FOLLOWLOCATION  1   curl setopt  ch  CURLOPT RETURNTRANSFER  0   curl setopt  ch  CURLOPT CUSTOMREQUEST  GET    curl setopt   ch  CURLOPT HEADER  1  curl exec   ch     curl info   curl getinfo  ch   curl close  ch   echo   lt br   gt    print r  curl info     gt    The bellow is from curl through proxy returns no content   lt     proxy    66 96 200 39 80    proxy   explode       proxy    url      POST 1      ch   curl init    curl setopt  ch  CURLOPT URL   url   curl setopt  ch  CURLOPT RETURNTRANSFER  1   curl setopt  ch  CURLOPT PROXY   proxy 0    curl setopt  ch  CURLOPT PROXYPORT   proxy 1    curl setopt  ch  CURLOPT HEADER  1     exec   curl exec  ch    echo curl error  ch   print r curl getinfo  ch    echo  exec    gt    is currently live on pelican-cement com but also does not work   UPDATE  Thank you for all your help  I made the above changes  Now it only returns a blank screen    lt     url     POST  1     ch   curl init    curl setopt  ch  CURLOPT URL  url   curl setopt  ch  CURLOPT HTTPPROXYTUNNEL  0   curl setopt  ch  CURLOPT PROXY   66 96 200 39 80    curl setopt  ch  CURLOPT FOLLOWLOCATION  1   curl setopt  ch  CURLOPT RETURNTRANSFER  0   curl setopt  ch  CURLOPT CUSTOMREQUEST  GET    curl setopt   ch  CURLOPT HEADER  1   curl exec   ch     curl scraped page   curl exec  ch   curl close  ch    echo  curl scraped page    gt

User · Answer

I have explained use of various CURL options required for CURL PROXY    url    http   dynupdate no-ip com ip php    proxy    127 0 0 1 8888    proxyauth    user password     ch   curl init    curl setopt  ch  CURLOPT URL   url              URL for CURL call curl setopt  ch  CURLOPT PROXY   proxy          PROXY details with port curl setopt  ch  CURLOPT PROXYUSERPWD   proxyauth        Use if proxy have username and password curl setopt  ch  CURLOPT PROXYTYPE  CURLPROXY SOCKS5      If expected to call with specific PROXY type curl setopt  ch  CURLOPT FOLLOWLOCATION  1       If url has redirects then go to the final redirected URL  curl setopt  ch  CURLOPT RETURNTRANSFER  0       Do not outputting it out directly on screen  curl setopt  ch  CURLOPT HEADER  1        If you want Header information of response else make 0  curl scraped page   curl exec  ch   curl close  ch    echo  curl scraped page

User · Answer

root APPLICATIOSERVER  var www html  php connectiontest php 61e23468-949e-4103-8e08-9db09249e8s1 OpenSSL SSL connect  SSL ERROR SYSCALL in connection to 10 172 123 1 80 root APPLICATIOSERVER  var www html   Post declaring the proxy settings in the php script file issue has been fixed    proxy    10 172 123 1 80   curl setopt  cSession  CURLOPT PROXY   proxy      PROXY details with port

User · Answer

Here is a working version with your bugs removed    url    http   dynupdate no-ip com ip php    proxy    127 0 0 1 8888      proxyauth    user password     ch   curl init    curl setopt  ch  CURLOPT URL  url   curl setopt  ch  CURLOPT PROXY   proxy     curl setopt  ch  CURLOPT PROXYUSERPWD   proxyauth   curl setopt  ch  CURLOPT FOLLOWLOCATION  1   curl setopt  ch  CURLOPT RETURNTRANSFER  1   curl setopt  ch  CURLOPT HEADER  1    curl scraped page   curl exec  ch   curl close  ch    echo  curl scraped page    I have added CURLOPT PROXYUSERPWD in case any of your proxies require a user name and password  I set CURLOPT RETURNTRANSFER to 1  so that the data will be returned to  curl scraped page variable   I removed a second extra curl exec  ch   which would stop the variable being returned  I consolidated your proxy IP and port into one setting   I also removed CURLOPT HTTPPROXYTUNNEL and CURLOPT CUSTOMREQUEST as it was the default   If you don t want the headers returned  comment out CURLOPT HEADER   To disable the proxy simply set it to null   curl setopt  ch  CURLOPT PROXY  null     Any questions feel free to ask  I work with cURL every day

User · Answer

Here is a well tested function which i used for my projects with detailed self explanatory comments     There are many times when the ports other than 80 are blocked by server firewall so the code appears to be working fine on localhost but not on the server    function get page  url    global  proxy   ch   curl init    curl setopt  ch  CURLOPT URL   url     curl setopt  ch  CURLOPT PROXY   proxy   curl setopt  ch  CURLOPT HEADER  0      return headers 0 no 1 yes curl setopt  ch  CURLOPT RETURNTRANSFER  true      return page 1 yes curl setopt  ch  CURLOPT TIMEOUT  200      http request timeout 20 seconds curl setopt  ch  CURLOPT FOLLOWLOCATION  true      Follow redirects  need this if the url changes curl setopt  ch  CURLOPT MAXREDIRS  2     if http server gives redirection responce curl setopt  ch  CURLOPT USERAGENT       Mozilla 5 0  Windows  U  Windows NT 5 1  en-US  rv 1 8 1 7  Gecko 20070914 Firefox 2 0 0 7    curl setopt  ch  CURLOPT COOKIEJAR   cookies txt       cookies storage   here the changes have been made curl setopt  ch  CURLOPT COOKIEFILE   cookies txt    curl setopt  ch  CURLOPT SSL VERIFYPEER  false      false for https curl setopt  ch  CURLOPT ENCODING   gzip       the page encoding   data   curl exec  ch      execute the http request curl close  ch      close the connection return  data

[php] How to use CURL via a proxy?

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