注册页代码（JS检测、头像更换、城市更换……）——初学者的好东西！

来源：互联网发布：刀锋铁骑血量数据编辑：程序博客网时间：2024/06/15 19:33

<?php session_start();?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" >
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>blog首页</title>
<link type="text/css" href="style.css" />
</head>
<?php
require("conn.php");
$str=array("1","2","3","4","5","6","7","8","9","0");
$word=strlen($str);
for($i=0;$i<4;$i++){
$num=rand(0,$word*2-1);
$img=$img."<img src=' pic/checkcode/".$num.".gif' width='16' height='16'>";
$pic=$pic.$str[$num];
}
?>
<script type="text/javascript" language="javascript">
// JavaScript Document
//首页登录验证
function f_check(form){
  if(form.txt_user.value==""){
   alert("请输入用户名");form.txt_user.focus();return false;
  }
  if(form.txt_pwd.value==""){
   alert("请输入密码");form.txt_pwd.focus();return false;
  }
  if(form.txt_yan.value==""){
   alert("请输入验证码");form.txt_yan.focus();return false;
  }
  if(form.txt_yan.value!=form.txt_hyan.value){
   alert("对不起，您输入的验证码不正确!");form.txt_yan.focus();return false;
  }
}
//判断用户的输入是否合法
function check(){
if (myform.txt_regrealname.value==""){
  alert("请输入真实姓名！");myform.txt_regrealname.focus();return false;
}
if (myform.txt_regpwd.value==""){
  alert("请输入密码！");myform.txt_regpwd.focus();return false;
}
if (myform.txt_regpwd.value.length<3){
  alert("密码至少为3位，请重新输入！");myform.txt_regpwd.focus();return false;
}
if (myform.txt_regpwd2.value==""){
  alert("请确认密码！");myform.txt_regpwd2.focus();return false;
}
if (myform.txt_regpwd.value!=myform.txt_regpwd2.value){
  alert("您两次输入的密码不一致，请重新输入！");myform.txt_regpwd.focus();return false;
}
if(myform.txt_birthday.value==""){
  alert("请输入您的生日");myform.txt_birthday.focus();return false;
}
if(CheckDate(myform.txt_birthday.value)){
  alert("请输入标准日期（如：1980/05/29或1980-05-29）");myform.txt_birthday.focus();return false;
}
if (myform.txt_regemail.value==""){
  alert("请输入Email地址！");myform.txt_regemail.focus();return false;
}
var i=myform.txt_regemail.value.indexOf("@");
var j=myform.txt_regemail.value.indexOf(".");
if((i<0)||(i-j>0)||(j<0)){
  alert("您输入的Email地址不正确，请重新输入！");myform.txt_regemail.value="";myform.txt_regemail.focus();return false;
}
if(myform.txt_province.value==""){
  alert("请选择您所在的省会名称!");myform.txt_province.focus();return false;
}
if(myform.txt_city==""){
  alert("请选择您所在的城市名称!");myform.txt_city.focus();return false;
}
if(myform.txt_ico==""){
  alert("请选择您喜欢的人物头像!");myform.txt_ico.focus();return false;
}
function CheckDate(INDate)
{ if (INDate=="")
    {return true;}
subYY=INDate.substr(0,4)
if(isNaN(subYY) || subYY<=0){
  return true;
}
//转换月份
if(INDate.indexOf('-',0)!=-1){ separate="-"}
else{
  if(INDate.indexOf('/',0)!=-1){separate="/"}
  else {return true;}
  }
  area=INDate.indexOf(separate,0)
  subMM=INDate.substr(area+1,INDate.indexOf(separate,area+1)-(area+1))
  if(isNaN(subMM) || subMM<=0){
  return true;
}
  if(subMM.length<2){subMM="0"+subMM}
//转换日
area=INDate.lastIndexOf(separate)
subDD=INDate.substr(area+1,INDate.length-area-1)
if(isNaN(subDD) || subDD<=0){
  return true;
}
if(eval(subDD)<10){subDD="0"+eval(subDD)}
NewDate=subYY+"-"+subMM+"-"+subDD
if(NewDate.length!=10){return true;}
    if(NewDate.substr(4,1)!="-"){return true;}
    if(NewDate.substr(7,1)!="-"){return true;}
var MM=NewDate.substr(5,2);
var DD=NewDate.substr(8,2);
if((subYY%4==0 && subYY%100!=0)||subYY%400==0){ //判断是否为闰年
  if(parseInt(MM)==2){
   if(DD>29){return true;}
  }
}else{
  if(parseInt(MM)==2){
   if(DD>28){return true;}
  }
}
var mm=new Array(1,3,5,7,8,10,12); //判断每月中的最大天数
for(i=0;i< mm.length;i++){
  if (parseInt(MM) == mm[i]){
   if(parseInt(DD)>31){
    return true;
   }else{
    return false;
   }
  }
}
   if(parseInt(DD)>30){return true;}
   if(parseInt(MM)>12){return true;}
   return false;
   }
}