PHP将XML套接字post的消息长度编码为2字节十六进制
我正在处理一个XML套接字服务器,我从/向该服务器接收和发送XML请求 服务器需要为指示消息长度的字符串添加2字节十六进制前缀;连接到XML套接字时收到的消息如下: 接收到XML字符串PHP将XML套接字post的消息长度编码为2字节十六进制,php,xml,string,sockets,hex,Php,Xml,String,Sockets,Hex,我正在处理一个XML套接字服务器,我从/向该服务器接收和发送XML请求 服务器需要为指示消息长度的字符串添加2字节十六进制前缀;连接到XML套接字时收到的消息如下: 接收到XML字符串 <?xml version="1.0" encoding="UTF-8"?> <Iso8583PostXml> <MsgType>0800</MsgType> <Fields> <Field_007>xxx</Field_007
<?xml version="1.0" encoding="UTF-8"?>
<Iso8583PostXml>
<MsgType>0800</MsgType>
<Fields>
<Field_007>xxx</Field_007>
<Field_011>xxx</Field_011>
<Field_012>xxx</Field_012>
<Field_013>xxx</Field_013>
<Field_070>001</Field_070>
</Fields>
</Iso8583PostXml>
当我将其转换为十六进制时,您可以看到以“0101”开头,十六进制是发送的XML消息的长度。要将此消息解码为XML,我将其转换为十六进制字符串,然后切掉前4个字符,然后在simplexml_load_字符串中工作-如果我不删除XML不解析的“0101”,即使我回显收到的字符串,它看起来像普通XML,没有任何前缀
我返回的响应是一个XML字符串:
<?xml version="1.0" encoding="UTF-8"?>
<Iso8583PostXml>
<MsgType>0810</MsgType>
<Fields>
<Field_007>xxx</Field_007>
<Field_011>xxx</Field_011>
<Field_012>xxx</Field_012>
<Field_013>xxx</Field_013>
<Field_070>001</Field_070>
<Field_039>00</Field_039>
</Fields>
</Iso8583PostXml>
$send_xml将长度作为字符串输出到xml前面
322<?xml version="1.0" encoding="UTF-8"?>
<Iso8583PostXml>
<MsgType>0810</MsgType>
<Fields>
<Field_007>0813063726</Field_007>
<Field_011>093726</Field_011>
<Field_012>093726</Field_012>
<Field_013>0813</Field_013>
<Field_070>001</Field_070>
<Field_039>00</Field_039>
</Fields>
</Iso8583PostXml>
322
0810
0813063726
093726
093726
0813
001
00
这是行不通的。。不知何故,我需要将322写入xml字符串的2字节前缀中检查php函数包(),格式为h或h,具体取决于xml套接字服务器的结尾
但它应该会让你朝着正确的方向前进试试下面的代码它对我来说很有用
function sendSocketRequest($XmlString, $Socket_Request) {
if (!($sock = socket_create(AF_INET, SOCK_STREAM, 0))) {
$errorcode = socket_last_error();
$errormsg = socket_strerror($errorcode);
die("Couldn't create socket: [$errorcode] $errormsg \n");
}
if (!socket_connect($sock, $Socket_Request['HostName'], $Socket_Request['Port'])) {
$errorcode = socket_last_error();
$errormsg = socket_strerror($errorcode);
die("Could not connect: [$errorcode] $errormsg \n");
}
$status = socket_write($sock, pack_int32be(strlen($XmlString)), 4);
$status = socket_write($sock, $XmlString, strlen($XmlString));
$response = socket_read($sock, $this->_socketReadLength);
socket_close($sock);
return substr($response, 2);
}
function pack_int32be($i) {
if ($i < -2147483648 || $i > 2147483647) {
die("Out of bounds");
}
return pack('C4', ($i >> 24) & 0xFF, ($i >> 16) & 0xFF, ($i >> 8) & 0xFF, ($i >> 0) & 0xFF
);
}
$socketResponse = sendSocketRequest($yourXMLString, array('HostName'=>'<HostName>','Port'=>'<Port>');
函数sendSocketRequest($XmlString,$Socket\u请求){
if(!($sock=socket\u create(AF\u INET,sock\u STREAM,0))){
$errorcode=socket\u last\u error();
$errormsg=socket\u strerror($errorcode);
die(“无法创建套接字:[$errorcode]$errormsg\n”);
}
如果(!socket_connect($sock,$socket_Request['HostName'],$socket_Request['Port'])){
$errorcode=socket\u last\u error();
$errormsg=socket\u strerror($errorcode);
die(“无法连接:[$errorcode]$errormsg\n”);
}
$status=socket\u write($sock,pack\u int32be(strlen($XmlString)),4);
$status=socket_write($sock,$XmlString,strlen($XmlString));
$response=socket\u read($sock,$this->\u socketReadLength);
插座关闭($sock);
返回substr($response,2);
}
功能包_int32be($i){
如果($i<-2147483648 | |$i>2147483647){
死亡(“出界”);
}
返回包('C4'、($i>>24)和0xFF、($i>>16)和0xFF、($i>>8)和0xFF、($i>>0)和0xFF
);
}
$socketResponse=sendSocketRequest($yourXMLString,数组('HostName'=>'','Port'=>'');
322<?xml version="1.0" encoding="UTF-8"?>
<Iso8583PostXml>
<MsgType>0810</MsgType>
<Fields>
<Field_007>0813063726</Field_007>
<Field_011>093726</Field_011>
<Field_012>093726</Field_012>
<Field_013>0813</Field_013>
<Field_070>001</Field_070>
<Field_039>00</Field_039>
</Fields>
</Iso8583PostXml>
function sendSocketRequest($XmlString, $Socket_Request) {
if (!($sock = socket_create(AF_INET, SOCK_STREAM, 0))) {
$errorcode = socket_last_error();
$errormsg = socket_strerror($errorcode);
die("Couldn't create socket: [$errorcode] $errormsg \n");
}
if (!socket_connect($sock, $Socket_Request['HostName'], $Socket_Request['Port'])) {
$errorcode = socket_last_error();
$errormsg = socket_strerror($errorcode);
die("Could not connect: [$errorcode] $errormsg \n");
}
$status = socket_write($sock, pack_int32be(strlen($XmlString)), 4);
$status = socket_write($sock, $XmlString, strlen($XmlString));
$response = socket_read($sock, $this->_socketReadLength);
socket_close($sock);
return substr($response, 2);
}
function pack_int32be($i) {
if ($i < -2147483648 || $i > 2147483647) {
die("Out of bounds");
}
return pack('C4', ($i >> 24) & 0xFF, ($i >> 16) & 0xFF, ($i >> 8) & 0xFF, ($i >> 0) & 0xFF
);
}
$socketResponse = sendSocketRequest($yourXMLString, array('HostName'=>'<HostName>','Port'=>'<Port>');