本文实例讲述了php实现登录，注册及密码修改功能的方法。分享给大家供大家参考，具体如下：
1.登录
2.忘记密码
3.免费注册
页面布局：
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<div id="views" class="views">
<div id="view-login" class="page-view view-login active">
<present name="wxuser">
<div id="wxuser" class="form-group text-center">
<div>
<img src="{sh:$wxuser.headimgurl}">
</div>
<h4 class="nickname">{sh:$wxuser.nickname}</h4>
</div>
</present>
<!--登录-->
<div id="login" class="step">
<h4 class="popup-title login">登录</h4>
<div class="go-forget">忘记密码</div>
<form class="form-horizontal" role="form" type="get">
<div class="form-group">
<label>手机号码</label>
<input type="tel" name="tel" class="form-item" id="tel_num" placeholder="请输入手机号码" value="">
</div>
<div class="form-group">
<label>登录密码</label>
<input type="password" name="password" class="form-item" placeholder="请填写密码">
</div>
<div class="js-help-info error"></div>
</form>
<div class="popup-options">
<button type="button" class="btn btn-block btn-success js-login">确认</button>
</div>
<div class="go-register">免费注册</div>
</div>
<!--注册-->
<div id="register" class="step" style="display:none;">
<h4 class="popup-title">注册账号</h4>
<form role="form" class="form-horizontal">
<div class="form-group">
<label>手机号码</label>
<input type="tel" name="tel" class="form-item" id="tel_num" placeholder="请输入手机号码" value="">
</div>
<div class="form-group form-group-r">
<label>验证码</label>
<button class="btn-sm btn-white js-sms-code" type="button">获取验证码</button>
<input type="text" placeholder="请填写验证码" class="form-item" name="smscode" />
</div>
<div class="form-group">
<label>登录密码</label>
<input type="password" placeholder="设置登录密码" class="form-item" name="password" maxlength="30">
</div>
<div class="form-group">
<label>确认密码</label>
<input type="password" placeholder="确认登录密码" class="form-item" name="re_password" maxlength="30">
</div>
<div class="js-help-info error">
</div>
</form>
<div class="popup-options">
<button type="button" class="btn btn-block btn-success js-register">确认</button>
</div>
<div class="go-login">立即登录</div>
</div>
<!--修改密码-->
<div id="changepwd" class="step" style="display:none;">
<h4 class="popup-title">修改密码</h4>
<form role="form" class="form-horizontal">
<div class="form-group">
<label>手机号码</label>
<input type="tel" name="tel" class="form-item" id="tel_num" placeholder="请输入手机号码" value="">
</div>
<div class="form-group form-group-r">
<label>验证码</label>
<button class="btn-sm btn-white js-sms-excode" type="button">获取验证码</button>
<input type="text" placeholder="请填写验证码" class="form-item" name="smscode" />
</div>
<div class="form-group">
<label>新密码</label>
<input type="password" placeholder="设置登录密码" class="form-item" name="password" maxlength="30">
</div>
<div class="form-group">
<label>确认密码</label>
<input type="password" placeholder="确认登录密码" class="form-item" name="re_password" maxlength="30">
</div>
<div class="js-help-info error">
</div>
</form>
<div class="popup-options">
<button type="button" class="btn btn-block btn-success js-changepwd">确认</button>
</div>
<div class="go-login">立即登录</div>
</div>
</div>
</div>
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js处理：
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