更新 2020-09-20 浏览 1034次
HTML代码:
<p> 请输入一个数字:<input type="text" class="input" id="card" maxlength="8"> <input type="button" class="btn" id="getCard" value="生成卡号"> </p> <div id="result"></div>
引入Jquery并通过$.post请求后端PHP处理:
<script src="js/jquery.min.js"></script> <script type="text/javascript"> $(function(){ $("#getCard").click(function(){ var card = $("#card").val(); $.post("code.php",{no:card},function(msg){ if(msg==''){ $("#result").html('出错了!'); }else{ $("#result").html('生成卡号为:'+msg); } }); }); }); </script>
PHP处理类:
/* * 进制转换--用于生成卡号 */ class Code { //密码字典 private $dic = array( 0=>'0', 1=>'1', 2=>'2', 3=>'3', 4=>'4', 5=>'5', 6=>'6', 7=>'7', 8=>'8', 9=>'9', 10=>'A', 11=>'B', 12=>'C', 13=>'D', 14=>'E', 15=>'F', 16=>'G', 17=>'H', 18=>'I', 19=>'J', 20=>'K', 21=>'L', 22=>'M', 23=>'N', 24=>'O', 25=>'P', 26=>'Q', 27=>'R', 28=>'S', 29=>'T', 30=>'U', 31=>'V', 32=>'W', 33=>'X', 34=>'Y', 35=>'Z' ); //ID //private $ids; //长度 //private $format = 8; public function encodeID($int, $format=8) { $dics = $this->dic; //print_r($dics);exit; $dnum = 36; //进制数 $arr = array (); $loop = true; while ($loop) { $arr[] = $dics[bcmod($int, $dnum)]; $int = bcdiv($int, $dnum, 0); //echo $int.'<br/>'; if ($int == '0') { $loop = false; } } if (count($arr) < $format) $arr = array_pad($arr, $format, $dics[0]); return implode('', array_reverse($arr)); } public function decodeID($ids) { $dics = $this->dic; $dnum = 36; //进制数 //键值交换 $dedic = array_flip($dics); //去零 $id = ltrim($ids, $dics[0]); //反转 $id = strrev($id); $v = 0; for ($i = 0, $j = strlen($id); $i < $j; $i++) { $v = bcadd(bcmul($dedic[$id { $i } ], bcpow($dnum, $i, 0), 0), $v, 0); } return $v; } }
调用类方法生成唯一卡号:
$no = intval($_POST['no']); if($no==0 || $no>=10000000){ echo '';exit; } $code = new Code(); $card_no = $code->encodeID($no,5); $card_pre = '755'; $card_vc = substr(md5($card_pre.$card_no),0,2); $card_vc = strtoupper($card_vc); echo $card_pre.$card_no.$card_vc;