摘要:php六种输出字符串函数的运用方式,及在常用pHP函数的介绍和运用<meta charset="utf-8"><form method="post" class="denglu"> 用户名:<input name="user" type="text&qu
php六种输出字符串函数的运用方式,及在常用pHP函数的介绍和运用
<meta charset="utf-8">
<form method="post" class="denglu">
用户名:<input name="user" type="text" ><br>
密码:<input name="pwd" type="text" ><br>
<input type="submit" name="login" value="登录">
</form>
<?php
function login($username, $password,$user)
{
if (empty($username) || empty($password) ){
echo '<script> alert("用户名和密码不能为空");location.href="";</script>';
}
if($username == $user['admin'] && md5($password) == $user['pwd']) {
echo '<script> alert("登录成功~~");location.href="?liuyan=1";</script>';
} else {
echo '<script> alert("登录失败,请检查用户名或密码~~");location.href="";</script>';
}
}
$user=['admin'=>'admin','pwd'=>'e10adc3949ba59abbe56e057f20f883e'];
$username=isset($_POST['user']) ? trim($_POST['user']) : "";
$password=isset($_POST['pwd']) ? trim($_POST['pwd']) : "";
if(@$_POST['login']) {
login($username, $password,$user);
}
$get=@$_GET['liuyan'];
if($get==1){?>
<style type="text/css">
.denglu{ display: none;}
</style>
<form method="post" action="?liuyan=1">
<textarea name="wen">发表留言</textarea><br>
<input type="submit" value="留言" name="liuyan">
</form>
<?php
if(@$_POST['liuyan']){
echo substr($_POST['wen'],0,10)."。。。。。。";
}
?>
<?php } ?>
批改老师:韦小宝批改时间:2018-12-15 16:24:12
老师总结:写的很不错哦!课后要记得多多练习才可以哦!