web开发入门第二章创建PHP页面2_新建一个登录页面:loggm.html，第二个页面php用于接收-优快云博客

本文链接：https://blog.youkuaiyun.com/xiaocainiao320/article/details/42006823
进一步练习数组函数 include 类接口表单 COOKIE 简单JS脚本等
<?php
session_start();
header("Content-type:text/html; charset=UTF-8;");
ini_set("display_errors", "On");
error_reporting(E_ALL | E_STRICT);
/*
//$_SESSION['username'] = $_GET['name'];
$_SESSION['username'] = $_REQUEST['name'];
$_SESSION['passwd'] = $_GET['passwd'];
$_SESSION['authuser'] = 0;

//Check name and passwd information
if (($_SESSION['username'] == 'luoz') and
    ($_SESSION['passwd'] == '123456')) {
    $_SESSION['authuser'] = 1;
} else {
    echo 'Sorry, but you don\'t have permission to view this page!';
    exit();     
}
*/

//本页面的访问时，服务器将COOKIE返回给浏览器，下一次访问时将附带上COOKIE，这样服务器侧就可以直接使用提交的COOKIE了
setcookie('username', "luo zhun", time() + 60);
$_SESSION['authuser'] = 1;

include "header.php";
echo $data;
?>

<script language="javascript">

function checkName()
{
  var frm = document.forms['formTest'];
  var name = frm.elements['username'].value;	
  if(name == "luozhun")
  {
	  alert("OOOKKKK!");  
	  return true;
  }
  else
  {
	alert("NH!");
	return false;
  }
}

</script>

<html>
 <head>
  <title>My First PHP Program</title>
 </head>
 <body>
<?php
//转义实现
/*
echo "<h1>I'm \"a\" lumberjack.</h1>";
echo "<h2>And I'm okay.</h2>";
echo '<h1>I\'m "a" lumberjack.</h1>';
*/

//heredoc 一定要注意<<<OOO后不能有任何其他字符，包括空格
$num = 1;
$str = <<<OOO
 <h1>I'm "a" lumberjack.</h1>
<h3>And I'm okay.</h3> $num
<h1>I'm "a" lumberjack.</h1>
OOO;
echo $str;


//通过GET方式传送变量
//echo $_GET['name'];

echo "<br />*********************** <br /> ";
//常量
define(CONST_VALUE, "I am a const value!");
echo "CONST_VALUE";

echo "<br />*********************** <br /> ";
//变量
$value = 1.1211;
echo $value + 1;

echo "<br />*********************** <br /> ";
//运算符&&(and) ||(or) 与C类似
$value2 = "2";
echo $value2 + 1;

if(($value > 1) or ($value2 = 5))
{
	echo "and == &&";
}

echo "<br />".$value2;

//数组
echo "<br />*********************** <br /> ";
$arr[] = "F";
$arr[] = "U";
$arr[] = "C";
$arr[] = "K";
print_r($arr);
echo "<br />*********************** <br /> ";
foreach($arr as $index => $val)
{
	if($arr[$index] == $val)
	{
		echo "$arr[$index]"."  ";
	}
}
echo "<br />*********************** <br /> ";
foreach($arr as $val)
{

	echo $val."<br />";

}
echo "<br />*******print********** <br /> ";
print($arr);
print("<br />".$arr[0]."<br />");
print_r($arr);
echo "<br />*********************** <br /> ";
echo max($arr);
echo "<br />*********************** <br /> ";


//页面间传递变量:GET方式
//echo "<a href='index.php?name=lz&id=2'>Click Me!</a>";
//特殊字符如空格等的处理
$strr = "hero of the war";//urlencode("luo zhun");
echo "<a href='moviesite.php?favmovie=$strr&id=2'>Click Me!</a>";

//查看PHP 日志,方法1:修改PHP.ini文件; 方法2：采用代码方式打开，如下
ini_set("display_errors", "On");
error_reporting(E_ALL | E_STRICT);
//echo $_GET["121"];

//页面间传递变量：SESSION方式见上面 （$_REQUEST 与 $_GET的区别）

//页面间传递变量：COOKIE
echo "<br />**********CLASS********* <br /> ";

//类 & 接口
//虚函数不要实现（PHP里都属于纯虚函数）
//内部存在虚函数的类必须为虚类
//子类若实现了构造函数，不会自动去调用父类的构造函数，这个与C++不同
//没有多重继承，使用类似JAVA的类和接口来实现多重继承效果
abstract class Dot
{
	private $x = 2;
	private $y = 4;
	/*
	public function __construct()
	{
		echo "Dot construct function called!";	
	}
	*/
	
	public function __construct($x, $y)
	{
		$this->x = $x;
		$this->y = $y;
	}	
	
	static public function Stat()
	{
		echo "static function called!";
	}
	
	public function area()
	{
		return $this->x * $this->y;
	}

	abstract function getName();

}

//接口不允许实现任何的方法，接口中所有的方法，都必须在子类中被覆写。 
interface Inf
{
	public function Inf1();
	
}

class DDot extends Dot implements Inf
{

	public function __construct($x, $y)
	{
		parent::__construct($x, $y);
		echo "DDot construct function called!";	
	}
	
	public function getName()
	{
		return "DDOT!";
	}
	
	public function Inf1()
	{
		echo "<br /> Interface call <br />";
	}
}

Dot::Stat();

$dot = new DDot(4,4);
echo $dot->area();
$dot->Inf1();

echo "<br />*********************** <br /> ";

?>
	<!-- 页面间传递变量：表单 -->
   <form method='post' action="moviesite.php" name="formTest">
		<table cellpadding=2 cellspacing=2>
			<tr>

				<td >名称：</td>
				<td ><input type="text" name="username" ></td>
			</tr>

			<tr>

				<td >密码：</td>
				<td ><input type="password" name="passwd" ></td>
			</tr>
			
			<tr>
				<td >描述：</td>
				<td><textarea name="content" rows="5" cols="25"></textarea></td>
			</tr>
			<tr>
				<td></td>
				<td>
					<!-- <input type="submit" class="button" value="提 交"> -->
					<input type="image" name="提 交" src="commentsBnt.gif" οnclick="return checkName();">
					<input type="reset" class="button" value="清 空">
				</td>
			</tr>
		</table>
	</form>

 </body>
</html>