Imitation webQQ designed by php+js+mysql-<2>Other verification_PHP tutorial

Let’s see if other verifications are easy!

<2>Nickname verification

Js code

[javascript]
function checkNickname(Nickname)
{ 
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{ 
document.getElementById("error2").innerHTML="*"; //Reset
If(Nickname.length==0)
                                                                                            document.getElementById("error2").innerHTML="*The nickname cannot be empty!";
                                                                                                            else  
                                                                           If(Nickname.length>16)
                                                                                                 document.getElementById("error2").innerHTML="*The nickname should not exceed 16 characters!";
                                                                                                                                                                                                                      else                                                                                                  document.getElementById("error2").innerHTML="*Nickname available!";
                                                                                                                                                                                                                                  }  
}
xmlhttp.open("GET","index.php",true);
xmlhttp.send(); //Note the difference between this and email verification
}
function checkNickname(Nickname)
{
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("error2").innerHTML="*"; //Reset
If(Nickname.length==0)
          {
Document.getElementById("error2").innerHTML="*The nickname cannot be empty!";
}
else
          {
If(Nickname.length>16)
          {
              document.getElementById("error2").innerHTML="*The nickname should not exceed 16 characters!";
}
else
          {
              document.getElementById("error2").innerHTML="*Nickname available!";
}
}
}
}
xmlhttp.open("GET","index.php",true);
xmlhttp.send(); //Note the difference between this and email verification
}

<3>Password verification

Js code

[javascript]
function checkPwd1(password1) 
{    
var xmlhttp; 
if (window.XMLHttpRequest) 
  {// code for IE7+, Firefox, Chrome, Opera, Safari  
    xmlhttp=new XMLHttpRequest(); 
  } 
else 
  {// code for IE6, IE5  
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); 
  } 
xmlhttp.onreadystatechange=function() 
  { 
  if (xmlhttp.readyState==4 && xmlhttp.status==200) 
    {  document.getElementById("error3").innerHTML="*"; 
       document.getElementById("password2").value=""; 
       document.getElementById("error4").innerHTML="*"; 
       if(password1.length==0) 
          { 
            document.getElementById("error3").innerHTML="*密码不能为空！"; 
             
          } 
       else 
          { 
            if(password1.length<6||password1.length>16) 
               { 
                  document.getElementById("error3").innerHTML="*密码为6-16个字符！"; 
                   
               } 
             else 
               {   
                   var reg=/[a-zA-Z0-9]/;     //在js中使用正则表达式 www.2cto.com   
                   if(reg.test(password1)) 
                      { 
                         document.getElementById("error3").innerHTML="*密码可用！"; 
                       } 
                   else 
                      { 
                         document.getElementById("error3").innerHTML="*密码不可用！"; 
                          
                      }     
               } 
          } 
    } 
  }  
xmlhttp.open("GET","index.php",true); 
xmlhttp.send(); 
} 
function checkPwd1(password1)
{ 
var xmlhttp;
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
   xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
   xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {  document.getElementById("error3").innerHTML="*";
       document.getElementById("password2").value="";
       document.getElementById("error4").innerHTML="*";
    if(password1.length==0)
       {
     document.getElementById("error3").innerHTML="*密码不能为空！";
   
    }
    else
       {
     if(password1.length<6||password1.length>16)
      {
         document.getElementById("error3").innerHTML="*密码为6-16个字符！";
     
      }
    else
      { 
          var reg=/[a-zA-Z0-9]/;     //在js中使用正则表达式
       if(reg.test(password1))
             {
          document.getElementById("error3").innerHTML="*密码可用！";
        }
       else
          {
         document.getElementById("error3").innerHTML="*密码不可用！";
      
       }   
      }
    }
    }
  }
xmlhttp.open("GET","index.php",true);
xmlhttp.send();
}

<4>重复密码验证

Js代码

[javascript]
function checkPwd2(password2) 
{    
var xmlhttp; 
if (window.XMLHttpRequest) 
  {// code for IE7+, Firefox, Chrome, Opera, Safari  
    xmlhttp=new XMLHttpRequest(); 
  } 
else 
  {// code for IE6, IE5  
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); 
  } 
xmlhttp.onreadystatechange=function() 
  { 
  if (xmlhttp.readyState==4 && xmlhttp.status==200) 
    {  document.getElementById("error4").innerHTML="*"; 
       if(password2.length==0) 
          { 
            document.getElementById("error4").innerHTML="*请确认密码！"; 
             
          } 
       else 
          { 
            if(password2!=document.getElementById("password1").value) 
               { 
                  document.getElementById("error4").innerHTML="*两次密码输入不一致！"; 
                   
               } 
            else  
               { 
                  document.getElementById("error4").innerHTML="*密码输入一致！"; 
               } 
             
          } 
    } 
  }  
xmlhttp.open("GET","index.php",true); 
xmlhttp.send(); 
} 
function checkPwd2(password2)
{ 
var xmlhttp;
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
   xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
   xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {  document.getElementById("error4").innerHTML="*";
    if(password2.length==0)
       {
     document.getElementById("error4").innerHTML="*请确认密码！";
   
    }
    else
       {
     if(password2!=document.getElementById("password1").value)
      {
         document.getElementById("error4").innerHTML="*两次密码输入不一致！";
     
      }
   else
      {
      document.getElementById("error4").innerHTML="*密码输入一致！";
      }
   
    }
    }
  }
xmlhttp.open("GET","index.php",true);
xmlhttp.send();
}

How about it, it’s quite simple! (To be continued)

Excerpted from wyzhangchengjin123