function getIDCardInfo($IDCard,$format=1){ 
$result['error']=0;//0:未知错误,1:身份证格式错误,2:无错误 
$result['flag']='';//0标示成年,1标示未成年 
$result['tdate']='';//生日,格式如:2012-11-15 
if(!preg_match("/^(\d{15}$|^\d{18}$|^\d{17}(\d|X|x))$/",$IDCard)){ 
$result['error']=1; 
return $result; 
}else{ 
if(strlen($IDCard)==18){ 
$tyear=intval(substr($IDCard,6,4)); 
$tmonth=intval(substr($IDCard,10,2)); 
$tday=intval(substr($IDCard,12,2)); 
}elseif(strlen($IDCard)==15){ 
$tyear=intval("19".substr($IDCard,6,2)); 
$tmonth=intval(substr($IDCard,8,2)); 
$tday=intval(substr($IDCard,10,2)); 
}
 
if($tyear>date("Y")||$tyear<(date("Y")-100)){ 
$flag=0; 
}elseif($tmonth<0||$tmonth>12){ 
$flag=0; 
}elseif($tday<0||$tday>31){ 
$flag=0; 
}else{ 
if($format){
$tdate=$tyear."-".$tmonth."-".$tday; 
}else{
$tdate=$tmonth."-".$tday; 
}
      
if((time()-mktime(0,0,0,$tmonth,$tday,$tyear))>18*365*24*60*60){ 
$flag=0; 
}else{ 
$flag=1; 
} 
}  
} 
$result['error']=2;//0:未知错误,1:身份证格式错误,2:无错误 
$result['isAdult']=$flag;//0标示成年,1标示未成年 
$result['birthday']=$tdate;//生日日期 
return $result; 
}