PHP连接打印机

<?php
header("Content-type: text/html; charset=utf-8");

class Netprint{
public $host = '192.168.2.200';  //打印机IP
public $port = 9100;  //默认端口
public $socket;

function initcon($host, $port = '9100'){//连接打印机

if(!empty($host) && !empty($port)){
$this->host = $host;
$this->port = $port;
$socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
socket_set_nonblock($socket);
$con = @socket_connect($socket,$this->host,$this->port);
$flag = socket_select($r=array($socket), $w = array($socket), $f = array($socket), 2);
if($flag == '1'){
socket_set_block($socket);
}else{
$flag = socket_select($r=array($socket), $w = array($socket), $f = array($socket), 2);
if($flag == '1'){
socket_set_block($socket);
}else{
return false;
}
}
$this->socket = $socket;
return true;
}else{
return false;
}
}
function initprint(){//初始化打印
if($this->socket){
$sendstr1 = pack("C*", '27', '64');
socket_sendto($this->socket,$sendstr1,strlen($sendstr1),0,$this->host,$this->port);

$sendstr2 = pack("C*", '27', '83');
socket_sendto($this->socket,$sendstr2,strlen($sendstr2),0,$this->host,$this->port);

$sendstr3 = pack("C*", '27', '33', '0');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function sendprint($content){//打印内容

if($this->socket){

//$content = mb_convert_encoding($content,"GB2312","UTF-8");
$content = iconv("UTF-8","GB18030",$content);
$sendstr4 = pack('A*', $content);
socket_sendto($this->socket,$sendstr4,strlen($sendstr4),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function cutter(){//切纸
if($this->socket){

$content = mb_convert_encoding("\n\n\n\n\n\n\n","GB2312","UTF-8");
$sendstr4 = pack('A*', $content);
socket_sendto($this->socket,$sendstr4,strlen($sendstr4),0,$this->host,$this->port);

$sendstr5 = pack("C*", '29', '86', '48');
socket_sendto($this->socket,$sendstr5,strlen($sendstr5),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function closecon(){//关闭连接
if($this->socket){

socket_close($this->socket);

return true;
}else{
return false;
}
}
function normal(){
if($this->socket){

$sendstr3 = pack("C*", '29', '33', '0');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function middle(){//居中
if($this->socket){

$sendstr3 = pack("C*", '27', '97', '49');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function width_2x(){//宽*2
if($this->socket){

$sendstr3 = pack("C*", '29', '33', '16');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function height_2x(){//高*2
if($this->socket){

$sendstr3 = pack("C*", '29', '33', '1');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function bold(){//加粗
if($this->socket){

$sendstr3 = pack("C*", '27', '33', '8');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function underline(){//下划线
if($this->socket){

$sendstr3 = pack("C*", '27', '33', '128');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function align_left(){//左对齐
if($this->socket){

$sendstr3 = pack("C*", '27', '97', '48');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function align_right(){//右对齐
if($this->socket){

$sendstr3 = pack("C*", '27', '97', '50');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
function font_1x(){//字体大小1x
if($this->socket){

$sendstr3 = pack("C*", '27', '33', '0');
socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);

return true;
}else{
return false;
}
}
}

$net = new Netprint();
$msgtext = '';
$ret = $net->initcon('192.168.00.00'); //打印机IP
if($ret){
$net->initprint();

$net->width_2x();
$content = "宽成二\n";
$net->sendprint($content);

$net->normal();
$net->normal();
$net->height_2x();
$content = "高成二\n";
$net->sendprint($content);

$net->normal();
$net->normal();
$net->width_2x();
$net->height_2x();
//$net->bold();
//$net->middle();
$content = "宽高成二\n";
$net->sendprint($content);

$net->normal();
$net->normal();
$net->font_1x();
$content = "普通字体\n";
$net->sendprint($content);

$net->cutter();
//$net->closecon();
$msgtext = '打印成功';
}else{
$msgtext .= "打印机连接不上 ";
}
echo $msgtext;
?>