php身份证校验 

  1. <?php
  2. /*
  3.  * 校验规则是：
  4.  * （1）十七位数字本体码加权求和公式 
  5.  * S = Sum(Ai * Wi), i = 0, ... , 16 ，先对前17位数字的权求和 
  6.  * Ai:表示第i位置上的身份证号码数字值 
  7.  * Wi:表示第i位置上的加权因子 
  8.  * Wi: 7 9 10 5 8 4 2 1 6 3 7 9 10 5 8 4 2 
  9.  * （2）计算模 
  10.  * Y = mod(S, 11) 
  11.  * （3）通过模得到对应的校验码 
  12.  * Y: 0 1 2 3 4 5 6 7 8 9 10 
  13.  * 校验码: 1 0 X 9 8 7 6 5 4 3 2
  14.  * 也就是说，如果得到余数为1则最后的校验位p应该为对应的0.如果校验位不是，则该身份证号码不正确。
  15.  * */
  16. class cardCheack{
  17. 	static private $powers = array('7','9','10','5','8','4','2','1','6','3','7','9','10','5','8','4','2');   #17
  18. 	static private $parityBit = array('1','0','X','9','8','7','6','5','4','3','2');
  19. 	static public function validId($cardno='')
  20. 	{
  21. 		$ret = array('isvalid'=>'', 'msg'=>'');
  22. 		if(empty($cardno)){
  23. 			return $ret;
  24. 		}
  25. 		switch(strlen($cardno)){
  26. 		case 15:
  27. 			$ret= self::validId15($cardno);	break;
  28. 		case 18:
  29. 			$ret= self::validId18($cardno);	break;
  30. 		default:
  31. 			return array(
  32. 				'isvalid'=>false,
  33. 				'msg'=>'',
  34. 			);
  35. 		}
  36. 		return $ret;
  37. 	}
  39. 	#18bit身份证号校验
  40. 	#@param: 	 cardno 身份证号
  41. 	#@return: 	 true, false
  42. 	static public function  validId18($cardno='')
  43. 	{
  44. 		$_ret = array();
  45. 		$_cardno = $cardno.'';
  46. 		$_num = substr($cardno, 0, 17);
  47. 		$_parityBit = (int)substr($cardno, 17);
  48. 		$_powers = 0;
  50. 		for($i = 0; $i < 17; $i++){
  51. 			if($_num[$i] < '0' || $_num[$i] > '9'){
  52. 				return array(
  53. 					'isvalid'=>false,
  54. 					'msg'=>'',
  55. 				);
  56. 				break;
  57. 			}else{
  58. 				#加权
  59. 				$_powers += intval($_num[$i])*intval(self::$powers[$i]);
  60. 				#性别
  61. 				if($i==16 && intval($_num[$i])%2==0){
  62. 					$_ret['msg'] = 'female';
  63. 				}else{
  64. 					$_ret['msg'] = 'male';
  65. 				}
  66. 			}
  67. 		}
  68. 		#校验
  69. 		$mod = intval($_powers)%11;
  70. 		$_ret['isvalid'] = (strtoupper(self::$parityBit[$mod])==$_parityBit) ? true: false;
  71. 		return $_ret;	
  72. 	}
  74. 	#15bit身份证号校验
  75. 	#@param: 	 cardno 身份证号
  76. 	#@return: 	 true, false
  77. 	public function validId15($cardno=''){
  78. 		$cardno = $cardno.'';	
  79. 		$len = strlen($cardno);
  80. 		for($i=0; $i<$len; $i++){
  81. 			if($cardno[$i] < '0' || $carno[$i] > '9'){
  82. 				return array(
  83. 					'isvalid'=>false,
  84. 					'msg'=>'',
  85. 				);
  86. 				break;
  87. 			}
  88. 		}
  89. 		$_year = substr($cardno, 6, 2);
  90. 		$_month = substr($cardno, 8, 2);
  91. 		$_day = substr($cardno, 10, 2);
  92. 		$_sexbit= substr($cardno, 14);
  94. 		#校验年份
  95. 		if($_year < '01' || $_year > '90'){ 
  96. 			return array(
  97. 				'isvalid'=>false,
  98. 				'msg'=>'',
  99. 			);
  100. 		}
  101. 		if($_month < '01' || $_month > '12'){
  102. 			return array(
  103. 				'isvalid'=>false,
  104. 				'msg'=>'',
  105. 			);
  106. 		}
  107. 		if($_day < '01' || $_day> '31') {
  108. 			return array(
  109. 				'isvalid'=>false,
  110. 				'msg'=>'',
  111. 			);
  112. 		}
  114. 		#设置性别
  115. 		return array(
  116. 			'isvalid'=>true,
  117. 			'msg'=>!!$_sexbit%2? 'male': 'felmale',
  118. 		);
  119. 	}
  120. }
  122. /*$obj = new cardCheack();
  123. var_dump($obj->validId('412728198610110071'));
  124.  */
  125. var_dump(cardCheack::validId('412728198610110071'));





posted @ 2015-07-23 09:44  laughingLau  阅读(427)  评论(0)  编辑  收藏  举报