Home >Backend Development >PHP Tutorial >PHP sends AT command, phpat command_PHP tutorial
Requirements: Send text messages to the user’s mobile phone, and the message content can be customized
Problem: Without Telecom mode, the free api interface cannot be used to customize the text message content
Solution: Connect to the server through 4G network card, operate the network card through AT commands, and send text messages
After checking, it was found that AT quality transmission requires multiple encoding of the information, and the transmission timed out, but the actual transmission was successful, and the problem has not been completely solved
The code is as follows:
<span> 1</span> <?<span>php </span><span> 2</span> send_message('8613800138000', '您好, 你正在申请注册服务平台, 您的验证码是: 97431'<span>); </span><span> 3</span> <span> 4</span> <span>function</span> send_message(<span>$phone</span>, <span>$message</span><span>) { </span><span> 5</span> <span>$phone</span> = decode_phone(<span>$phone</span><span>); </span><span> 6</span> <span> 7</span> <span>$message_center</span> = decode_message_center('+8613010200500'); <span>//</span><span>此步骤似乎没用</span> <span> 8</span> <span> 9</span> <span>$message</span> = decode_message(<span>$message</span><span>); </span><span> 10</span> <span> 11</span> <span>$length</span> = get_message_length(<span>$phone</span>, <span>$message</span><span>); </span><span> 12</span> <span> 13</span> <span>set_time_limit</span>(0<span>); </span><span> 14</span> <span> 15</span> <span>//</span><span>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</span> <span> 16</span> <span> 17</span> <span>exec</span>('mode COM4: baud=115200 data=8 stop=1 parity=n xon=on'<span>); </span><span> 18</span> <span> 19</span> <span>$fd</span> = dio_open('COM4:',<span> O_RDWR); </span><span> 20</span> <span> 21</span> <span>$ff</span> = dio_stat(<span>$fd</span><span>); </span><span> 22</span> <span> 23</span> <span>if</span> (!<span>$fd</span><span>) { </span><span> 24</span> <span>die</span>("failed open com4"<span>); </span><span> 25</span> <span> } </span><span> 26</span> <span> 27</span> <span>//</span><span>chr(13)是回车, chr(16)是Ctrl+Z</span> <span> 28</span> <span> 29</span> dio_write(<span>$fd</span>, "AT+CMGF=0" . <span>chr</span>(13)); <span>//</span><span>设置发送模式为PDU</span> <span> 30</span> <span> 31</span> dio_write(<span>$fd</span>, "AT+CMGS=" . <span>$length</span> . <span>chr</span>(13)); <span>//</span><span>发送信息长度</span> <span> 32</span> <span> 33</span> dio_write(<span>$fd</span>, '11000D91' . <span>$phone</span> . '000800' . <span>$message</span> . <span>chr</span>(26) . <span>chr</span>(13)); <span>//</span><span>发送短信息</span> <span> 34</span> <span> 35</span> <span>sleep</span>(2<span>); </span><span> 36</span> <span> 37</span> dio_close(<span>$fd</span><span>); </span><span> 38</span> <span>} </span><span> 39</span> <span> 40</span> <span>function</span> decode_phone(<span>$phone</span><span>) { </span><span> 41</span> <span>$phone</span> = <span>str_replace</span>('+', '', <span>$phone</span><span>); </span><span> 42</span> <span> 43</span> <span>if</span> (<span>strlen</span>(<span>$phone</span>) % 2 !== 0<span>) { </span><span> 44</span> <span>$phone</span> = <span>$phone</span> . 'F'<span>; </span><span> 45</span> <span> } </span><span> 46</span> <span> 47</span> <span>$newPhone</span> = ''<span>; </span><span> 48</span> <span>for</span> (<span>$i</span> = 0; <span>$i</span> < <span>strlen</span>(<span>$phone</span>); <span>$i</span> += 2<span>) { </span><span> 49</span> <span>$newPhone</span> = <span>$newPhone</span> . <span>substr</span>(<span>$phone</span>, <span>$i</span> + 1, 1) . <span>substr</span>(<span>$phone</span>, <span>$i</span>, 1<span>); </span><span> 50</span> <span> } </span><span> 51</span> <span> 52</span> <span>return</span> <span>$newPhone</span><span>; </span><span> 53</span> <span>} </span><span> 54</span> <span> 55</span> <span>function</span> decode_message_center(<span>$phone</span><span>) { </span><span> 56</span> <span>$newPhone</span> = '91' . decode_phone(<span>$phone</span><span>); </span><span> 57</span> <span> 58</span> <span>$len</span> = <span>strtoupper</span>(<span>dechex</span>(<span>strlen</span>(<span>$newPhone</span>) / 2<span>)); </span><span> 59</span> <span> 60</span> <span>if</span> (<span>strlen</span>(<span>$len</span>) % 2 !== 0<span>) { </span><span> 61</span> <span>$len</span> = '0' . <span>$len</span><span>; </span><span> 62</span> <span> } </span><span> 63</span> <span> 64</span> <span>$newPhone</span> = <span>$len</span> . <span>$newPhone</span><span>; </span><span> 65</span> <span> 66</span> <span>return</span> <span>$newPhone</span><span>; </span><span> 67</span> <span>} </span><span> 68</span> <span> 69</span> <span>function</span> decode_message(<span>$message</span><span>) { </span><span> 70</span> <span>$newMessage</span> = utf8_unicode(<span>$message</span><span>); </span><span> 71</span> <span> 72</span> <span>$len</span> = <span>strtoupper</span>(<span>dechex</span>(<span>strlen</span>(<span>$newMessage</span>) / 2<span>)); </span><span> 73</span> <span> 74</span> <span>if</span> (<span>strlen</span>(<span>$len</span>) % 2 !== 0<span>) { </span><span> 75</span> <span>$len</span> = '0' . <span>$len</span><span>; </span><span> 76</span> <span> } </span><span> 77</span> <span> 78</span> <span>$newMessage</span> = <span>$len</span> . <span>$newMessage</span><span>; </span><span> 79</span> <span> 80</span> <span>return</span> <span>$newMessage</span><span>; </span><span> 81</span> <span>} </span><span> 82</span> <span> 83</span> <span>function</span> utf8_unicode(<span>$name</span><span>) { </span><span> 84</span> <span>$name</span> = <span>iconv</span>('UTF-8', 'UCS-2', <span>$name</span><span>); </span><span> 85</span> <span>$len</span> = <span>strlen</span>(<span>$name</span><span>); </span><span> 86</span> <span>$str</span> = ''<span>; </span><span> 87</span> <span> 88</span> <span>for</span> (<span>$i</span> = 0; <span>$i</span> < <span>$len</span> - 1; <span>$i</span> = <span>$i</span> + 2<span>) { </span><span> 89</span> <span>$c</span> = <span>$name</span>[<span>$i</span><span>]; </span><span> 90</span> <span>$c2</span> = <span>$name</span>[<span>$i</span> + 1<span>]; </span><span> 91</span> <span>if</span> (<span>ord</span>(<span>$c</span>) > 0) { <span>//</span><span>两个字节的文字 </span> <span> 92</span> <span>$str</span> .= <span>base_convert</span>(<span>ord</span>(<span>$c</span>), 10, 16) . <span>str_pad</span>(<span>base_convert</span>(<span>ord</span>(<span>$c2</span>), 10, 16), 2, 0,<span> STR_PAD_LEFT); </span><span> 93</span> } <span>else</span><span> { </span><span> 94</span> <span>$str</span> .= <span>str_pad</span>(<span>base_convert</span>(<span>ord</span>(<span>$c2</span>), 10, 16), 4, 0,<span> STR_PAD_LEFT); </span><span> 95</span> <span> } </span><span> 96</span> <span> } </span><span> 97</span> <span> 98</span> <span>$str</span> = <span>strtoupper</span>(<span>$str</span>); <span>//</span><span>转换为大写 </span> <span> 99</span> <span>return</span> <span>$str</span><span>; </span><span>100</span> <span>} </span><span>101</span> <span>102</span> <span>function</span> get_message_length(<span>$phone</span>, <span>$message</span><span>) { </span><span>103</span> <span>$str</span> = '11000D91' . <span>$phone</span> . '000800' . <span>$message</span><span>; </span><span>104</span> <span>105</span> <span>$length</span> = <span>strlen</span>(<span>$str</span>) / 2<span>; </span><span>106</span> <span>107</span> <span>if</span> (<span>$length</span> < 10<span>) { </span><span>108</span> <span>$length</span> = '0' . <span>$length</span><span>; </span><span>109</span> <span> } </span><span>110</span> <span>111</span> <span>return</span> <span>$length</span><span>; </span><span>112</span> }