php验证台湾身份证号码是否合法

1. [代码][PHP]代码  

/**
	驗證台灣身份證號碼
	参数:
		身份證號碼
	返回:
		布爾值
	用法:
		echo &#39;<pre class="brush:php;toolbar:false">&#39;,var_dump(Fun::twcod(&#39;n2......10&#39;)),&#39;

'; /**/ public static function twcod($id) { $id=strtoupper($id); $d1=substr($id,0,1); if(strlen($id)!=10) {return FALSE;} if(stristr('ABCDEFGHJKLMNPQRSTUVXYWZIO',$d1)===FALSE) {return FALSE;} if(substr($id,1,1)!='1' && substr($id,1,1)!='2') {return FALSE;} if(!is_numeric(substr($id,1,9))) {return FALSE;} $num=array( 'A'=>'10','B'=>'11','C'=>'12','D'=>'13','E'=>'14','F'=>'15','G'=>'16','H'=>'17','J'=>'18','K'=>'19','L'=>'20','M'=>'21','N'=>'22', 'P'=>'23','Q'=>'24','R'=>'25','S'=>'26','T'=>'27','U'=>'28','V'=>'29','X'=>'30','Y'=>'31','W'=>'32','Z'=>'33','I'=>'34','O'=>'35', ); $n1=substr($num[$d1],0,1)+(substr($num[$d1],1,1)*9); unset($num,$d1); $n2=0; for($j=1;$j<9;$j++) { $d4=substr($id,$j,1); $n2=$n2+$d4*(9-$j); } $n3=$n1+$n2+substr($id,9,1); if(($n3 % 10)!=0){return FALSE;} return TRUE; }