本示例使用的读卡器:RFID网络WIFI无线TCP/UDP/HTTP可编程二次开发读卡器POE供电语音-淘宝网 (taobao.com)
php
<?php
mb_http_output('utf-8');
$port=88;
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
$bool = socket_bind($socket, "0.0.0.0", $port);
if($bool)
echo "Server is listening on port:".$port."\n";
else{
echo "Socket bind port:".$port." Error!";
exit;
}
while($bool){
try {
$bool = socket_listen($socket);
if (!$bool) {
echo "LISTEN ERROR:" . socket_strerror(socket_last_error()) . '\n';
socket_close($socket);
}
$new_socket = socket_accept($socket);
if (!$new_socket) {
$bool=false;
socket_close($socket);
echo "ACCPET ERROR:" . socket_strerror(socket_last_error()) . '\n';
}
$string = socket_read($new_socket, 1024);
$data = request($string);
if(substr($data,0,10)=="Response=1") {
$num = socket_write($new_socket, $data);
if ($num == 0)
echo "WRITE ERROR:" . socket_strerror(socket_last_error()) . "\n";
}
echo $data . "\n\n";
socket_close($new_socket);
}
catch(Exception $e1) {
echo "Server Err:".$e1."\n";
}
}
/* [读取get或post请求中的包序号、机号、卡号、卡类型、设备序号、读卡状态等,返回相应的字符串驱动读卡器显示文字及播报语音] */
function request($string)
{
$info="";
$card="";
$request="";
$ResponseStr="";
try {
echo $string . "\n";
$requestmode = substr($string, 0, 4);
if ($requestmode == "GET ") {
$begin = stripos($string, "?") + 1;
$end = stripos($string, "HTTP/1.1");
$request = substr($string, $begin, $end - $begin);
} elseif ($requestmode == "POST") {
$pattern = "/\s+/";
$FieldsList = preg_split($pattern, $string);
$conuts = count($FieldsList);
$isjson = stripos($string, "application/json");
$request = $FieldsList[$conuts - 1];
if ($isjson > 0) { //可以直接使用JSON来解板,此处统一替换成字符串处理
$request = str_replace("{", "", $request);
$request = str_replace("}", "", $request);
$request = str_replace("\"", "", $request);
$request = str_replace(":", "=", $request);
$request = str_replace(",", "&", $request);
}
}
$Fields = explode("&", $request);
$conuts = count($Fields);
for ($p = 0; $p < $conuts; $p++) {
$para = explode("=", $Fields[$p]);
switch ($para[0]) {
case "info":
$info = $para[1];
break;
case "jihao":
$jihao = $para[1];
break;
case "cardtype":
$cardtype = $para[1];
$typenum = hexdec($cardtype) % 16; //typenum=1 ID卡,2 HID卡,3 T5557卡,4 EM4305卡,5 IC卡,6 二代身份证,7 是15693卡,IClass"
$pushortake = intval(hexdec($cardtype) / 128); //pushortake=0 表示读卡,>0表示卡离开感应区
break;
case "card":
$card = $para[1];
break;
case "data":
$data = $para[1];
break;
case "dn":
$dn = $para[1];
break;
case "status":
$status = $para[1];
break;
}
}
if(strlen($info)>0 and strlen($info)>0) {
if ($pushortake == 0) //播报的中文语音,[v8]表示语音大小,取值v1 到 v16, TTS中文语音要转换编码
$ChineseVoice = "[v8]" . GetChineseCode("读取卡号[n1]") . $card;
else
$ChineseVoice = "[v8]" . GetChineseCode("卡号[n1]") . $card . GetChineseCode("离开感应区");
//此处可加入业务对数据库的查询、删除、增加、修改等操作,结果以文字、语音信息回应
$DisplayStr = "{" . GetChineseCode("卡号") . ":}"; //显示的文字,{}内文字可以高亮显示,中文必须转换编码,英文字符、数字等不需要转换
$DisplayStr = $DisplayStr . substr($card . " ", 0, 12);
$DisplayStr = $DisplayStr . substr(date('Y-m-d H:i:s', time()), 2, 17);
//Response=1是固定的回应头信息+接收的包序号+显示文字+显示延时秒数+蜂鸣响声代码+TTS语音
$ResponseStr = "Response=1," . $info . "," . $DisplayStr . ",20,1," . $ChineseVoice;
}
return $ResponseStr;
}
catch (Exception $e1) {
echo "Request ERR:".$e1."\n";
}
}
//获取中文汉字GB2312编码,显示中文、TTS中文语音必须转换编码
function GetChineseCode($inputstr){
if(mb_detect_encoding($inputstr, 'UTF-8', true) === true)
$gbkstr=iconv("UTF-8","GB2312",$inputstr); //中文必段强制使用GB2312编码格式
else
$gbkstr=$inputstr;
$strlens=strlen($gbkstr);
$hexcode="";
for($i=0;$i<$strlens;$i++){
if($i % 2 ==0) {
$hexcode = $hexcode . "\\x";
}
$byte = ord($gbkstr[$i]);
$b=substr('00'.dechex($byte ),-2);
$hexcode=$hexcode.$b;
}
return $hexcode;
}