PHP发送AT指令

Posted 2020-07-12

需求: 发送短信到用户输入手机, 要求可以自定义信息内容

问题: 没有电信猫, 使用免费api接口无法自定义短信内容

解决方案: 通过4G网卡, 接在服务器上, 通过AT指令操作网卡, 发送短信

查阅发现, AT质量发送需要对信息进行多重编码, 而且发送超时, 但实际发送成功, 问题还未完全解决

代码如下: 

  1 <?php
  2 send_message(‘8613800138000‘, ‘您好, 你正在申请注册服务平台, 您的验证码是: 97431‘);
  3  
  4 function send_message($phone, $message) {
  5     $phone = decode_phone($phone);
  6      
  7     $message_center = decode_message_center(‘[phone]‘); //此步骤似乎没用
  8      
  9     $message = decode_message($message);
 10      
 11     $length = get_message_length($phone, $message);
 12      
 13     set_time_limit(0);
 14      
 15     //根据情况选择COM口, 此处为COM4, 在管理设备中, 查看网络解调器的COM口
 16 
 17     exec(‘mode COM4: baud=115200 data=8 stop=1 parity=n xon=on‘);
 18      
 19     $fd = dio_open(‘COM4:‘, O_RDWR);
 20      
 21     $ff = dio_stat($fd);
 22      
 23     if (!$fd) {
 24         die("failed open com4");
 25     }
 26      
 27     //chr(13)是回车, chr(16)是Ctrl+Z
 28      
 29     dio_write($fd, "AT+CMGF=0" . chr(13)); //设置发送模式为PDU
 30      
 31     dio_write($fd, "AT+CMGS=" . $length . chr(13)); //发送信息长度
 32      
 33     dio_write($fd, ‘11000D91‘ . $phone . ‘000800‘ . $message . chr(26) . chr(13)); //发送短信息
 34      
 35     sleep(2);
 36      
 37     dio_close($fd);
 38 }
 39  
 40 function decode_phone($phone) {
 41     $phone = str_replace(‘+‘, ‘‘, $phone);
 42      
 43     if (strlen($phone) % 2 !== 0) {
 44         $phone = $phone . ‘F‘;
 45     }
 46      
 47     $newPhone = ‘‘;
 48     for ($i = 0; $i < strlen($phone); $i += 2) {
 49         $newPhone = $newPhone . substr($phone, $i + 1, 1) . substr($phone, $i, 1);
 50     }
 51      
 52     return $newPhone;
 53 }
 54  
 55 function decode_message_center($phone) {
 56     $newPhone = ‘91‘ . decode_phone($phone);
 57      
 58     $len = strtoupper(dechex(strlen($newPhone) / 2));
 59      
 60     if (strlen($len) % 2 !== 0) {
 61         $len = ‘0‘ . $len;
 62     }
 63      
 64     $newPhone = $len . $newPhone;
 65      
 66     return $newPhone;
 67 }
 68  
 69 function decode_message($message) {
 70     $newMessage = utf8_unicode($message);
 71      
 72     $len = strtoupper(dechex(strlen($newMessage) / 2));
 73      
 74     if (strlen($len) % 2 !== 0) {
 75         $len = ‘0‘ . $len;
 76     }
 77      
 78     $newMessage = $len . $newMessage;
 79      
 80     return $newMessage;
 81 }
 82  
 83 function utf8_unicode($name) {
 84     $name = iconv(‘UTF-8‘, ‘UCS-2‘, $name);
 85     $len = strlen($name);
 86     $str = ‘‘;
 87      
 88     for ($i = 0; $i < $len - 1; $i = $i + 2) {
 89         $c = $name[$i];
 90         $c2 = $name[$i + 1];
 91         if (ord($c) > 0) { //两个字节的文字  
 92             $str .= base_convert(ord($c), 10, 16) . str_pad(base_convert(ord($c2), 10, 16), 2, 0, STR_PAD_LEFT);
 93         } else {
 94             $str .= str_pad(base_convert(ord($c2), 10, 16), 4, 0, STR_PAD_LEFT);
 95         }
 96     }
 97      
 98     $str = strtoupper($str); //转换为大写  
 99     return $str;
100 }
101  
102 function get_message_length($phone, $message) {
103     $str = ‘11000D91‘ . $phone . ‘000800‘ . $message;
104      
105     $length = strlen($str) / 2;
106      
107     if ($length < 10) {
108         $length = ‘0‘ . $length;
109     }
110      
111     return $length;
112 }