Développement PHP d'un système de gestion backend de livre simple, code complet pour la fonction de modification de mot de passe
Définissez une page pour déterminer si l'administrateur est connecté. Fichier ly_check.php
<?php
require_once("config.php"); //引入數(shù)據(jù)庫(kù)文件
if($_SESSION["admin"]=="")
{
echo "<script language=javascript>alert('請(qǐng)重新登陸！');window.location='login.php'</script>";
}
?>L'instruction require_once est exactement la même que l'instruction require La seule différence est que PHP vérifiera si le fichier a. Si tel est le cas, il ne sera plus contenu.
Mettez le style CSS dans un fichier css.CSS et appelez-le plus tard dans le fichier.
<style>
.table{
border: 1px solid #CAF2FF;/*邊框顏色*/
margin-top: 5px;
margin-bottom: 5px;
background:#a8c7ce;
}
.td_bgf {
background:#d3eaef;
color:#000000;
}
.td_bg {
background:#ffffff;
color:#344b50;
}
.ACT_btn {
height:26px;
width:94px;
cursor:hand;
border:solid 0 #111;
font-size: 12px;
}
.bg_tr {
font-family: "微軟雅黑,Verdana, 新宋體";
color:#e1e2e3;/*標(biāo)題字體色*/
font-size:12px;
font-weight:bolder;
background:#353c44;/*標(biāo)題背景色*/
line-height: 22px;
}
td {
color:#1E5494;
font-size:12px;
line-height: 18px;
}
.tdbg1 {
background:#F9F9F9;
}
.tdbg {
BACKGROUND: #ffffff;
}
.top_link{text-decoration:none;font-size:14px;color:#FFDED2;height:0;filter:dropshadow(offX=1,offY=1,color=BD3400);}
A.top_link:link{text-decoration:none;font-size:14px;color:#FFDED2;height:0;filter:dropshadow(offX=1,offY=1,color=BD3400);}
A.top_link:visited{text-decoration:none;font-size:14px;color:#FFDED2;height:0;filter:dropshadow(offX=1,offY=1,color=BD3400);}
A.top_link:active{text-decoration:underline;font-size:14px;color:#fff;height:0;filter:dropshadow(offX=1,offY=1,color=BD3400);}
A.top_link:hover{text-decoration:underline;font-size:14px;color:#fff;height:0;filter:dropshadow(offX=1,offY=1,color=BD3400);}
.topbar {color:#ffffff}
.topbar a:link,.topbar a:visited{color:#ffffff;}
.topbar a:hover{background:#ccffcc; display:block; height:26px; padding-top:6px; color:#000000; text-decoration:none}
#table2 {
width:100%;
height:30px;
border-bottom : 1px solid #fff;
background-color: #6E4000;
}
.titledaohang {
FONT-SIZE: 12px;
COLOR: #551C02;
font-weight:bolder;
FONT-FAMILY: '微軟雅黑,宋體'
}
.Leftback {
background:#865802;
}
.leftframetable{
border: 1px solid #4C3500;
margin-top: 3px;
margin-bottom: 3px;
background:#FDF6E6;
}
</style>Ce qui suit montre le code complet permettant à l'administrateur de modifier le mot de passe de connexion de la page ly_pwd.php
<?php require_once('ly_check.php');
//引入判斷管理員是否登錄文件
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>管理員密碼修改</title>
<!-- 引入CSS樣式文件 -->
<link href="css.css" rel="stylesheet" type="text/css">
</head>
<body>
<?php
$password = $_SESSION["pwd"];
$SQL = "SELECT * FROM admin where password='$password'";
$rs = mysqli_query($link,$sql);
$rows = mysqli_fetch_assoc($rs);
$submit = isset($_POST["Submit"])?$_POST["Submit"]:"";
if($submit)
{
if($rows["password"]==$_POST["password"])
{
$password2=$_POST["password2"];
$SQL = "UPDATE admin SET password='$password2' where id=1";
mysqli_query($link,$sql);
echo "<script>alert('修改成功,請(qǐng)重新進(jìn)行登陸！');window.location='login.php'</script>";
exit();
}
else
?>
<?php
{
?>
<script>
alert("原始密碼不正確,請(qǐng)重新輸入")
//location.href="li_pwd.php";
</script>
<?php
}
}
?>
<table cellpadding="3" cellspacing="1" border="0" width="100%" class="table" align=center>
<form name="renpassword" method="post" action="">
<tr>
<th height=25 colspan=4 align="center" class="bg_tr">更改管理密碼</th>
</tr>
<tr>
<td width="40%" align="right" class="td_bg">用戶名：</td>
<td width="60%" class="td_bg"><?php echo $rows["username"] ?></td>
</tr>
<tr>
<td align="right" class="td_bg">原密碼：</td>
<td class="td_bg"><input name="password" type="password" id="password" size="20"></td>
</tr>
<tr>
<td align="right" class="td_bg">新密碼：</td>
<td class="td_bg"><input name="password1" type="password" id="password1" size="20"></td>
</tr>
<tr>
<td align="right" class="td_bg">確認(rèn)密碼：</td>
<td class="td_bg"><input name="password2" type="password" id="password2" size="20"></td>
</tr>
<tr>
<td colspan="2" align="center" class="td_bg">
<input class="button" onClick="return check();" type="submit" name="Submit" value="確定更改">
</td>
</tr>
</form>
</table>
</body>
</html>
<script type="text/javascript">
<!--
function checkspace(checkstr) {
var str = '';
for(i = 0; i < checkstr.length; i++) {
str = str + ' ';
}
return (str == checkstr);
}
function check()
{
if(checkspace(document.renpassword.password.value)) {
document.renpassword.password.focus();
alert("原密碼不能為空！");
return false;
}
if(checkspace(document.renpassword.password1.value)) {
document.renpassword.password1.focus();
alert("新密碼不能為空！");
return false;
}
if(checkspace(document.renpassword.password2.value)) {
document.renpassword.password2.focus();
alert("確認(rèn)密碼不能為空！");
return false;
}
if(document.renpassword.password1.value != document.renpassword.password2.value) {
document.renpassword.password1.focus();
document.renpassword.password1.value = '';
document.renpassword.password2.value = '';
alert("新密碼和確認(rèn)密碼不相同，請(qǐng)重新輸入");
return false;
}
document.admininfo.submit();
}
//-->
</script>
