PHP Classic Project Case-(a) blog management System 4

This article uses Ajax to implement a page without a refresh to verify that the user name exists. Seven, the registration page implementation1. Registration page Designregister.php part of the code:

<tr> <!--registration Form-&LT;TD colspan=3 valign= "Baseline" style= "Background-image:url (images/bg.jpg); Vertical-align:middle; height:450px; Text-align:center "><br> <form name=" MyForm "action=" register_deal.php "method=" POST "> &L T;table width= "85%" border= "1" align=center cellpadding=3 cellspacing=2 bordercolor= "#FFFFFF" bgcolor= "#FFFFFF" class= I_table> <tr align= "left" bgcolor= "#EFF7DE" > <td height=22 colspan=2 bgcolor= "#EFF7D             E "Class=right_head><span class=" tableborder_ltr "> Required content </span></td> </tr>                <tr bgcolor= "#FFFFFF" > <td width=22% align= "right" valign=middle class= ' f_one ' > user name </td> &LT;TD width=78% align= "left" class= ' F_one ' ><input name= ' txt_regname ' type=text id= ' Txt_regname ' val Ue= ' size=20 maxlength=14 onblur= "Javascript:chkusername ();" /> <label id= "L1" >*</label><label id= "Ll1" class= "Label2" ></label> </td> </tr> <t R bgcolor= "#FFFFFF" > <td align= "right" Valign=middle > real name </td> <td align= " Left "> <input name= ' txt_regrealname ' type= ' text ' id=" txt_regrealname "size= '" maxlength= ' "onblur=" Javascript:chkrealname () "/> <label id=" L4 ">*</label><label id=" Ll4 "class=" Label2 "></label></td> </tr> <tr> <tr bgcolor=" #FFFFFF "&G               T &LT;TD align= "right" valign=middle > Password </td> <td align= "left" > <input name= ' txt_regpwd ' ty Pe= ' password ' id= "txt_regpwd" size=20 maxlength=75 onblur= "javascript:chkpwd ();" /> no less than 3 digits such as English letters or numbers <label id= "L2" >*</label><label id= "Ll2" class= "Label2" &GT;&LT;/LABEL&GT;&L t;/td> </tr> <tr bgcolor="#FFFFFF" > <td align= "right" valign=middle> Confirm password </td> <td align= "left" > <input name= ' txt_regpwd2 ' type= ' password ' id= "txt_regpwd2" size=20 maxlength=75 onblur= "javascript:chkrepwd ()"             > <label id= "L3" >*</label><label id= "Ll3" class= "Label2" ></label></td>               </tr> <tr bgcolor= "#FFFFFF" > <td align= "Right" > Date of birth </td>  &LT;TD align= "Left" > <span class= "Word_grey" > <input name= "txt_birthday" type= "text" Id= "Birth" onblur= "Javascript:chkbirth ()" > (date Format: YYYY-MM-DD) <label id= "L6" >*</label><lab               El id= "ll6" class= "Label2" ></label></td> </tr> <tr bgcolor= "#FFFFFF" > &LT;TD align= "Right" valign=middle> email</td> <td align= "left" > <input nam E=txt_regemail type=text id= "Txt_Regemail "value=" size=35 maxlength=75 onblur= "javascript:chremail ()"/> <font color= ' #000000 ' > Open mailbox <label id= "L5" >*</label><label id= "ll5" class= "Label2" ></label></td> </tr&gt             ;                <tr bgcolor= "#FFFFFF" > <td align= "Right" > City </td> <td align= "left" > <select name= "txt_province" id= "txt_province" onchange= "javascript:initcity ();" > <script>creatprovince ();</script> </select> <s             Elect name= "txt_city" id= "txt_city" > </select> <font color= "Red" >*</font> </td> </tr> <tr bgcolor= "#FFFFFF" > <td align= "right" valign=middle class= ' F_one ' > select Avatar:</td> <td align= "left" class= ' F_one ' ><table width= "106" cellpadding= "0" cells pacing= "0" > <tr> <td width= "Ten" height= "></td> <td width=" ></td> <td width= "5                   3 "rowspan=" 2 "align=" center "><font color=red>*</font></td> </tr>  <tr> <td> </td> <td> <select name= "Txt_ico" Size= "1" id= "Txt_ico" onchange= "Javascript:showlogo ()" > <option value= "0.gif" selected> head                        Like 1 <option value= "1.gif" > Avatar 2 <option value= "2.gif" > Avatar 3 <option value= "3.gif" > Avatar 4</option> <option value= "4.gif" > Avatar 5</o ption> <option value= "5.gif" > Avatar 6</option> </select> &lt                ;/td>   </tr> </table></td> </tr> <tr align= "left" bgcolor= "#E Ff7de "> <td height=22 colspan=2 class=right_head><span class=" tableborder_ltr "> Optional content </span& gt;</td> </tr> <tr bgcolor= "#FFFFFF" > <td align= "right" class= ' F_one ' > Gender </td> <td align= "left" class= ' F_one ' > <select name=txt_regsex id= "Txt_regsex"                   ; <option value=1> men </OPTION> <option value=2> Women </OPTION> <opti On value=0 selected> privacy </OPTION> </select></td> </tr> < TR bgcolor= "#FFFFFF" > <td align= "right" class= ' F_one ' >QQ</td> <td align= "Lef          T "class= ' f_one ' ><input name= ' txt_regqq ' type=text id=" txt_regqq "value=" size=20 maxlength=14></td>   </tr> <tr bgcolor= "#FFFFFF" > <td align= "right" class= ' F_one ' > personal home &LT;/TD&G               T &LT;TD align= "left" class= ' F_one ' > <input name= ' txt_reghomepage ' type=text id= ' txt_reghomepage ' value= ' size=40 maxlength=75></td> </tr> <tr bgcolor= "#FFFFFF" > <td align= "R ight "Valign=middle class= ' f_one ' > personalized signature </td> <td align=" left "class= ' F_one ' ><textarea name = ' txt_regsign ' cols=50 rows= ' 4 ' id= "txt_regsign" ></textarea></td> </tr> <t R bgcolor= "#FFFFFF" > <td align= "right" class= ' F_one ' > Self introduction </td> <td align= "L EFT "class= ' F_one ' ><textarea name=txt_regintroduce cols=50 rows=4 id=" Txt_regintroduce "></textarea> </td> </tr> </table> <br> <input type= ' Submit ' name = ' Regsubmit ' value= ' Submit ' class= "Btn_grey" onclick= "return Check ()" >   <input name= "reset" type= "reset" class= "Btn_grey"  Value= "Refill" > </form> </td> </tr>

2. JavaScript function implementation called after the input box loses focus: Fun.js:

function Chkusername () {var c = document.getElementById (' txt_regname '); var d = C.value;var id;if (d== "") { document.getElementById (' L1 '). innertext= "Please enter user name";d Ocument.getelementbyid (' ll1 '). innertext= "";} Else{var xmlobj;xmlobj = new XMLHttpRequest () xmlobj.open (' POST ', ' chk.php?d= ' +d,true); xmlobj.onreadystatechange = Callbackfun;xmlobj.send (null), function Callbackfun () {if (xmlobj.readystate = = 4&&xmlobj.status ==200) {if ( xmlobj.responsetext== ' y ') {document.getElementById (' L1 '). innertext= "x";d Ocument.getelementbyid (' ll1 '). InnerText ="";} Else{document.getelementbyid (' L1 '). innertext= "";d Ocument.getelementbyid (' ll1 '). innertext= "√";}}}} function Chkrealname () {var c = document.getElementById (' txt_regrealname '); var d = c.value;if (d== "") { document.getElementById (' L4 '). innertext= "Please enter your real name";d Ocument.getelementbyid (' Ll4 '). innertext= "";} Else{document.getelementbyid (' L4 '). innertext= "";d Ocument.getelementbyid (' Ll4 '). innertext= "√";}} function Chkpwd () {var p = document.getElementById (' txt_regpwd '). Value;var c = document.getElementById (' ll1 '). Innertext;if (c== "√") {if (p== ") {document.getElementById (' L2 '). innertext=" Please enter your password ";} else if (p.length<3) {document.getElementById (' L2 '). innertext= "x";d Ocument.getelementbyid (' ll2 '). innertext= "";    Else{document.getelementbyid (' L2 '). innertext= "";d Ocument.getelementbyid (' ll2 '). innertext= "√"; }}}function chkrepwd () {var p = document.getElementById (' txt_regpwd '). Value;var rp = document.getElementById (' Txt_ Regpwd2 '). Value;var c = document.getElementById (' ll2 '). Innertext;if (c== "√") {if (P==RP) {document.getElementById (' Ll3 '). innertext= "√";d Ocument.getelementbyid (' L3 '). innertext= "";} Else{document.getelementbyid (' Ll3 '). innertext= "";d Ocument.getelementbyid (' L3 '). innertext= "x password Inconsistent";}} function Chkbirth () {var c = document.getElementById (' birth '); var d = c.value;if (d== "") {document.getElementById (' L6 '). innertext= "Please enter the date of birth";d Ocument.getelementbyid (' ll6 '). innertext= "";} Else{document.getelementbyid (' L6 '). innertext= "";d Ocument.getelementbyid (' ll6 '). innertext= "√";}} function Chkemail () {var e = document.getElementById (' Txt_regemail '). Value;if (e== "") {document.getElementById (' L5 '). innertext= "Please enter the mailbox";d Ocument.getelementbyid (' ll5 '). innertext= "";} Else{document.getelementbyid (' L5 '). innertext= "";d Ocument.getelementbyid (' ll5 '). innertext= "√";}}

3, the AJAX authentication user name uses the processing file chk.php: '

<?php    require_once ' conn/sqlhelper.class.php ';    $chk = $_request[' d '];    $sqlHelper = new SqlHelper ();    $sql = "SELECT * from Tb_user where regname= ' $chk ';";    $res = $sqlHelper->execute_dql ($sql);    $s = $res->fetch_assoc ();    if (count ($s)!=0) {        echo ' y ';    } else{        Echo ' n ';    }

4. Add the user to the database after registering registerdeal.php

<?phpsession_start (); include "conn/sqlhelper.class.php"; $sqlHelper = new SqlHelper (); $UserName =$_post[' Txt_ Regname ']; $sql = "SELECT * from tb_user where regname = ' $UserName '"; $res = $sqlHelper->execute_dql ($sql); $result =$ RES-&GT;FETCH_ASSOC (); if (count ($result)!=0) {echo ("<script>alert (' username already registered! '); History.go ( -1);</script> "); exit ();} $_session[' username ']=$_post[' txt_regname ']; $regname =$_post[' txt_regname '; $regrealname =$_post[' Txt_ Regrealname ']; $regpwd =$_post[' txt_regpwd '; $regbirthday =$_post[' Txt_birthday ']; $regemail =$_post[' Txt_regemail ' ]; $regcity =$_post[' txt_province '].$_post[' txt_city ']; $regico =$_post[' Txt_ico '; $regsex =$_post[' Txt_regsex '];$ regqq=$_post[' txt_regqq '; $reghomepage =$_post[' txt_reghomepage '); $regsign =$_post[' txt_regsign ']; $regintroduce = $_post[' txt_regintroduce '; $ip =getenv (REMOTE_ADDR); $sql = "Insert into Tb_user (Regname,regrealname,regpwd, Regbirthday,regemail,regcity,regico,regsex,regqq,reghomepage,regsign,regintroduce,ip,fig) "." Values (' $regname ', '$regrealname ', ' $regpwd ', ' $regbirthday ', ' $regemail ', ' $regcity ', ' $regico ', ' $regsex ', ' $regqq ', ' $reghomepage ', ' $ Regsign ', ' $regintroduce ', ' $ip ', 0) "; $INS = $sqlHelper->execute_dml ($sql); echo" <script> alert (' User registration successful! ');</script> ", echo" <script> window.location= ' index.php ';</script> ";? >

so far , the user registration has been implemented.

PHP Classic Project Case-(a) blog management System 4