asked on

Do a stantard HTTP post request using PHP

Hi experts,
i need to build an interface to some web services based on standard HTTP post as communication Method.

I have a .net example here:

Dim XMLDoc As New System.Xml.XmlDocument()
Dim XMLRequest As System.Xml.XmlElement
Dim XMLHeader As System.Xml.XmlElement
Dim XMLBody As System.Xml.XmlElement
Dim XMLNode As System.Xml.XmlElement
Dim XMLChildNode As System.Xml.XmlElement
Dim XMLGrandChild As System.Xml.XmlElement
Dim ClientID As String
Dim Language As String
Dim EmailAddress As String
Dim ClientPassword As String
Dim InterfaceURL As String
Dim ResponseURL As String
' client settings
ClientID = "YourClienTID"
EmailAddress = "YourClientEmail"
ClientPassword = "YourClientPassword"
Language = "YourLanguage"
InterfaceURL = "http://www.mysite.com/api/RequestListenerServlet"
ResponseURL = "http:// www.mysite.com/receiveRequest.asp"
' create xml
' create request header
XMLRequest = XMLDoc.CreateElement("Request")
XMLHeader = XMLDoc.CreateElement("Source")
' client details node
XMLNode = XMLDoc.CreateElement("RequestorID")
XMLNode.SetAttribute("Client", ClientID)
XMLNode.SetAttribute("EMailAddress", EmailAddress)
XMLNode.SetAttribute("Password", ClientPassword)
XMLHeader.AppendChild(XMLNode)
' client preferences node
XMLNode = XMLDoc.CreateElement("RequestorPreferences")
XMLNode.SetAttribute("Language", Language)
XMLChildNode = XMLDoc.CreateElement("RequestMode")
XMLChildNode.InnerText = "SYNCHRONOUS"
XMLNode.AppendChild(XMLChildNode)
XMLHeader.AppendChild(XMLNode)
' create request body
XMLBody = XMLDoc.CreateElement("RequestDetails")
XMLNode = XMLDoc.CreateElement("MyRequest")
XMLChildNode = XMLDoc.CreateElement("Item1")
XMLChildNode.SetAttribute("Subitem1", "val1")
XMLChildNode.SetAttribute("Subitem2", "val2")
XMLNode.AppendChild(XMLChildNode)
XMLChildNode = XMLDoc.CreateElement("Item2")
XMLGrandChild = XMLDoc.CreateElement("Item3")
XMLGrandChild.InnerText = "2005-12-01"
XMLChildNode.AppendChild(XMLGrandChild)
XMLGrandChild = XMLDoc.CreateElement("Item4")
XMLGrandChild.InnerText = "2"
XMLChildNode.AppendChild(XMLGrandChild)
XMLNode.AppendChild(XMLChildNode)
XMLChildNode = XMLDoc.CreateElement("item6")
XMLGrandChild = XMLDoc.CreateElement("Item7")
XMLGrandChild.SetAttribute("Code", "db")
XMLGrandChild.SetAttribute("NumberOfRooms", "1")
XMLChildNode.AppendChild(XMLGrandChild)
XMLNode.AppendChild(XMLChildNode)
XMLBody.AppendChild(XMLNode)
' create xml document
XMLRequest.AppendChild(XMLHeader)
XMLRequest.AppendChild(XMLBody)
XMLDoc.AppendChild(XMLRequest)
' post document
Dim encoding As New System.Text.ASCIIEncoding()
Dim byte1 As Byte() = encoding.GetBytes(XMLDoc.OuterXml)
Dim HttpWReq As System.Net.HttpWebRequest = _
CType(System.Net.WebRequest.Create(InterfaceURL), System.Net.HttpWebRequest)
HttpWReq.ContentType = "text/xml"
HttpWReq.ContentLength = XMLDoc.OuterXml.Length
HttpWReq.Method = "POST"
Dim StreamData As Stream = HttpWReq.GetRequestStream()
StreamData.Write(byte1, 0, byte1.Length)

' get response stream
Dim HttpWRes As System.Net.HttpWebResponse = CType(HttpWReq.GetResponse, System.Net.HttpWebResponse)
Dim receiveStream As Stream = HttpWRes.GetResponseStream()

How can i do the same with PHP?

Regards.

Muhammad Wasif

Check this
http://www.php.net/curl

Muhammad Wasif

Hope this basic example help

$url = "http://www.mysite.com/api/RequestListenerServlet";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "a=3&b=5"); //data to post
curl_setopt($ch, CURLOPT_TIMEOUT, 20);
$result = curl_exec ($ch);
curl_close($ch);
echo $result;

ASKER CERTIFIED SOLUTION

babuno5

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

balrom

ASKER

Thanks to all for your replies.
I think is more convenient the babuno5's approach(no curl required and no post vars to specify).

I need some time to do a test.

Regards.

balrom

ASKER

Hi,
i've done a test, getting the following response:
Warning: fsockopen(): php_network_getaddresses: getaddrinfo failed: Name or service not known in mymodule.php

any idea?

Regards.

babuno5

can you post your code??

balrom

ASKER

Babuno5,

there is the code:

// try connection to the server
$ConnectionServer = fsockopen($CFGURLTest, 80, $errno, $errstr, 30);
if ($ConnectionServer) {
...
} else {
...
}

The variable $CFGURLTest contain the address of service that receive post request.
After the fsockopen, the control skip to the else statement.

Regards

babuno5

check this link it has the same bug solved
http://bugs.php.net/bug.php?id=11058

balrom

ASKER

Thanks babuno,

Post a request using sockets works fine, in the previuos post i was using a wrong parm in the fsockopen funtion.

For clarity to other users:
I have to call the service with the url "http://www.myhost.com/myservice".

for do this i first open a socket to the host:
$Conn = fsockopen ("www.myhost.com", 80, $errno, $errstr, 30); // do not specify "http://"

then i put the post directive, specifying the service name:
fputs($Conn, "POST /myservice HTTP/1.0\r\n");

regards.