Simple example of object-oriented programming in php-PHP Tutorial-php.cn

Simple example of object-oriented programming in php

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Release： 2016-07-25 09:00:59

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Let me introduce you to a simple example of PHP object-oriented programming for your reference.

Required implementation: write a function (developed in PHP object-oriented way), input an integer from the web page and print out the corresponding pyramid. It is involved in many PHP tutorials. Today I will show it to you with a simple example.

Code example: 1. Display page pview.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>打印金字塔_程序员之家_bbs.it-home.org</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" >
</head>
<body>
    <form action="print.php" method="post">
        请输入一个数:<input type="text" name="one" />
        <input type="submit" value="提交" />
    </form>
</body>
</html>

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2. Print page:

<?php
    //引入class.php 文件
    require_once 'class.php';
    //接收传过来的值
    $one=$_REQUEST['one'];
    
    //创建一个对象
    $p = new Jzit;
    //调用成员方法
    $p->printd($one);
?>

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3. Class file: class.php

<?php
    //编写一个函数(以面向对象的方式开发),从网页输入一个整数打印出对应的金子塔
    //定义一个类 用来打印金字塔 by bbs.it-home.org
    class Jzit{
    
        //定义接收一个值来打印金字塔成员方法
        public function printd($n){
            
            //先定义层数
            for($i=1;$i<=$n;$i++){
                //打印空格
                for($k=1;$k<=$n-$i;$k++){
                    
                    echo " ";
                }
                //打印*号
                for($j=1;$j<=2*$i-1;$j++){
                    
                    echo "*";
                }
                //换行，打印下一行
            echo "<br />";
            }
        }
    }
?>

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