1. 准备工作  在php.ini文件中打开 extension=php_sockets.dll
    2. 确保socket正常运行
    3. <?php
    4. header("Content-type: text/html; charset=utf-8");
    6. class Netprint{
    7.     public $host = '192.168.2.200';  //打印机IP
    8.     public $port = 9100;  //默认端口
    9.     public $socket;
    11.     function initcon($host, $port = '9100'){//连接打印机
    13.         if(!empty($host) && !empty($port)){
    14.             $this->host = $host;
    15.             $this->port = $port;
    16.             $socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP) or die("Could not create socket.\n");
    17.             socket_set_nonblock($socket);
    18.             $con = @socket_connect($socket,$this->host,$this->port) or die("Could not connect server.\n");;
    19.             $flag = socket_select($r=array($socket), $w = array($socket), $f = array($socket), 2);
    20.             if($flag == '1'){
    21.                 socket_set_block($socket);
    22.             }else{
    23.                 $flag = socket_select($r=array($socket), $w = array($socket), $f = array($socket), 2);
    24.                 if($flag == '1'){
    25.                     socket_set_block($socket);
    26.                 }else{
    27.                     return false;
    28.                 }
    29.             }
    30.             $this->socket = $socket;
    31.             return true;
    32.         }else{
    33.             return false;
    34.         }
    35.     }
    36.     function initprint(){//初始化打印
    37.         if($this->socket){
    38.             $sendstr1 = pack("C*", '27', '64');
    39.             socket_sendto($this->socket,$sendstr1,strlen($sendstr1),0,$this->host,$this->port);
    41.             $sendstr2 = pack("C*", '27', '83');
    42.             socket_sendto($this->socket,$sendstr2,strlen($sendstr2),0,$this->host,$this->port);
    44.             $sendstr3 = pack("C*", '27', '33', '0');
    45.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    47.             return true;
    48.         }else{
    49.             return false;
    50.         }
    51.     }
    52.     function sendprint($content){//打印内容
    54.         if($this->socket){
    56.             //$content = mb_convert_encoding($content,"GB2312","UTF-8");
    57.             $content = iconv("UTF-8","GB18030",$content);
    58.             $sendstr4 = pack('A*', $content);
    59.             socket_sendto($this->socket,$sendstr4,strlen($sendstr4),0,$this->host,$this->port);
    61.             return true;
    62.         }else{
    63.             return false;
    64.         }
    65.     }
    66.     function cutter(){//切纸
    67.         if($this->socket){
    69.             $content = mb_convert_encoding("\n\n\n\n\n\n\n","GB2312","UTF-8");
    70.             $sendstr4 = pack('A*', $content);
    71.             socket_sendto($this->socket,$sendstr4,strlen($sendstr4),0,$this->host,$this->port);
    73.             $sendstr5 = pack("C*", '29', '86', '48');
    74.             socket_sendto($this->socket,$sendstr5,strlen($sendstr5),0,$this->host,$this->port);
    76.             return true;
    77.         }else{
    78.             return false;
    79.         }
    80.     }
    81.     function closecon(){//关闭连接
    82.         if($this->socket){
    84.             socket_close($this->socket);
    86.             return true;
    87.         }else{
    88.             return false;
    89.         }
    90.     }
    91.     function normal(){
    92.         if($this->socket){
    94.             $sendstr3 = pack("C*", '29', '33', '0');
    95.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    97.             return true;
    98.         }else{
    99.             return false;
    100.         }
    101.     }
    102.     function middle(){//居中
    103.         if($this->socket){
    105.             $sendstr3 = pack("C*", '27', '97', '49');
    106.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    108.             return true;
    109.         }else{
    110.             return false;
    111.         }
    112.     }
    113.     function width_2x(){//宽*2
    114.         if($this->socket){
    116.             $sendstr3 = pack("C*", '29', '33', '16');
    117.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    119.             return true;
    120.         }else{
    121.             return false;
    122.         }
    123.     }
    124.     function height_2x(){//高*2
    125.         if($this->socket){
    127.             $sendstr3 = pack("C*", '29', '33', '1');
    128.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    130.             return true;
    131.         }else{
    132.             return false;
    133.         }
    134.     }
    135.     function bold(){//加粗
    136.         if($this->socket){
    138.             $sendstr3 = pack("C*", '27', '33', '8');
    139.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    141.             return true;
    142.         }else{
    143.             return false;
    144.         }
    145.     }
    146.     function underline(){//下划线
    147.         if($this->socket){
    149.             $sendstr3 = pack("C*", '27', '33', '128');
    150.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    152.             return true;
    153.         }else{
    154.             return false;
    155.         }
    156.     }
    157.     function align_left(){//左对齐
    158.         if($this->socket){
    160.             $sendstr3 = pack("C*", '27', '97', '48');
    161.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    163.             return true;
    164.         }else{
    165.             return false;
    166.         }
    167.     }
    168.     function align_right(){//右对齐
    169.         if($this->socket){
    171.             $sendstr3 = pack("C*", '27', '97', '50');
    172.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    174.             return true;
    175.         }else{
    176.             return false;
    177.         }
    178.     }
    179.     function font_1x(){//字体大小1x
    180.         if($this->socket){
    182.             $sendstr3 = pack("C*", '27', '33', '0');
    183.             socket_sendto($this->socket,$sendstr3,strlen($sendstr3),0,$this->host,$this->port);
    185.             return true;
    186.         }else{
    187.             return false;
    188.         }
    189.     }
    190. }
    192. $net = new Netprint();
    193. $msgtext = '';
    194. $ret = $net->initcon('192.168.00.00'); //打印机IP
    195. if($ret){
    196.     $net->initprint();
    198.     $net->width_2x();
    199.     $content = "宽成二\n";
    200.     $net->sendprint($content);
    202.     $net->normal();
    203.     $net->normal();
    204.     $net->height_2x();
    205.     $content = "高成二\n";
    206.     $net->sendprint($content);
    208.     $net->normal();
    209.     $net->normal();
    210.     $net->width_2x();
    211.     $net->height_2x();
    212.     //$net->bold();
    213.     //$net->middle();
    214.     $content = "宽高成二\n";
    215.     $net->sendprint($content);
    217.     $net->normal();
    218.     $net->normal();
    219.     $net->font_1x();
    220.     $content = "普通字体\n";
    221.     $net->sendprint($content);
    223.     $net->cutter();
    224.     //$net->closecon();
    225.     $msgtext = '打印成功';
    226. }else{
    227.     $msgtext .= "打印机连接不上 ";
    228. }
    229. echo $msgtext;
    230. ?>